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Cisco 3560 software images

cisco 3560 software images

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Step 5 Make sure the permissions on the file are set to world-read. You can configure the switch by using configuration files you create, download from another switch, or download from a TFTP server. You can copy upload configuration files to a TFTP server for storage. Before you begin downloading or uploading a configuration file by using TFTP, do these tasks:.

To restart the daemon, either stop the inetd process and restart it, or enter a fastboot command on the SunOS 4. For more information on the TFTP daemon, see the documentation for your workstation. To configure the switch by using a configuration file downloaded from a TFTP server, follow these steps:. Step 3 Log into the switch through the console port, the Ethernet management port, or a Telnet session. Note You can only enter the flash n parameter for example, flash3 on Catalyst E switches.

The configuration file downloads, and the commands are executed as the file is parsed line-by-line. This example shows how to configure the software from the file tokyo-confg at IP address To upload a configuration file from a switch to a TFTP server for storage, follow these steps:. Step 2 Log into the switch through the console port, the Ethernet management port, or a Telnet session. This example shows how to upload a configuration file from a switch to a TFTP server:.

You can copy configuration files to or from an FTP server. When you copy a configuration file from the switch to a server by using FTP, the Cisco IOS software sends the first valid username in this list:. The switch sends the first valid password in this list:. The username and password must be associated with an account on the FTP server. Use the ip ftp username and ip ftp password commands to specify a username and password for all copies. Include the username in the copy command if you want to specify only a username for that copy operation.

If the server has a directory structure, the configuration file is written to or copied from the directory associated with the username on the server. For example, if the configuration file resides in the home directory of a user on the server, specify that user's name as the remote username. For more information, see the documentation for your FTP server. Before you begin downloading or uploading a configuration file by using FTP, do these tasks:.

Log into the switch through the console port, the Ethernet management port, or a Telnet session. This step is required only if you override the default remote username or password see Steps 4, 5, and 6. Using FTP, copy the configuration file from a network server to the running configuration or to the startup configuration file. This example shows how to copy a configuration file named host1-confg from the netadmin1 directory on the remote server with an IP address of This example shows how to specify a remote username of netadmin1.

The software copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using FTP, store the switch running or startup configuration file to the specified location. This example shows how to copy the running configuration file named switch2-confg to the netadmin1 directory on the remote host with an IP address of This example shows how to store a startup configuration file on a server by using FTP to copy the file:.

The RCP provides another method of downloading, uploading, and copying configuration files between remote hosts and the switch. The RCP copy commands rely on the rsh server or daemon on the remote system. You only need to have access to a server that supports the remote shell rsh. Most UNIX systems support rsh. Because you are copying a file from one place to another, you must have read permission on the source file and write permission on the destination file.

If the destination file does not exist, RCP creates it for you. When you copy a configuration file from the switch to a server, the Cisco IOS software sends the first valid username in this list:. For a successful RCP copy request, you must define an account on the network server for the remote username.

If the server has a directory structure, the configuration file is written to or copied from the directory associated with the remote username on the server. For example, if the configuration file is in the home directory of a user on the server, specify that user's name as the remote username.

Before you begin downloading or uploading a configuration file by using RCP, do these tasks:. If the switch IP address translates to Switch1. For more information, see the documentation for your RCP server. This step is required only if you override the default remote username see Steps 4 and 5.

Using RCP, copy the configuration file from a network server to the running configuration or to the startup configuration file. Then it copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using RCP, copy the configuration file from a switch running or startup configuration file to a network server.

This example shows how to store a startup configuration file on a server:. You can clear the configuration information from the startup configuration. If you reboot the switch with no startup configuration, the switch enters the setup program so that you can reconfigure the switch with all new settings.

To clear the contents of your startup configuration, use the erase nvram: or the erase startup-config privileged EXEC command. To delete a saved configuration from flash memory, use the delete flash: filename privileged EXEC command.

Depending on the setting of the file prompt global configuration command, you might be prompted for confirmation before you delete a file. By default, the switch prompts for confirmation on destructive file operations. The configuration replacement and rollback feature replaces the running configuration with any saved Cisco IOS configuration file. You can use the rollback function to roll back to a previous configuration. The configuration archive provides a mechanism to store, organize, and manage an archive of configuration files.

The configure replace privileged EXEC command increases the configuration rollback capability. As an alternative, you can save copies of the running configuration by using the copy running-config destination-url privileged EXEC command, storing the replacement file either locally or remotely. However, this method lacks any automated file management. The configuration replacement and rollback feature can automatically save copies of the running configuration to the configuration archive.

You use the archive config privileged EXEC command to save configurations in the configuration archive by using a standard location and filename prefix that is automatically appended with an incremental version number and optional timestamp as each consecutive file is saved.

You can specify how many versions of the running configuration are kept in the archive. After the maximum number of files are saved, the oldest file is automatically deleted when the next, most recent file is saved. The show archive privileged EXEC command displays information for all the configuration files saved in the configuration archive.

The configure replace privileged EXEC command replaces the running configuration with any saved configuration file. When you enter the configure replace command, the running configuration is compared with the specified replacement configuration, and a set of configuration differences is generated.

The resulting differences are used to replace the configuration. The configuration replacement operation is usually completed in no more than three passes. To prevent looping behavior no more than five passes are performed. You can use the copy source-url running-config privileged EXEC command to copy a stored configuration file to the running configuration. When using this command as an alternative to the configure replace target-url privileged EXEC command, note these major differences:.

You can also use the configure replace command to roll back changes that were made since the previous configuration was saved. Instead of basing the rollback operation on a specific set of changes that were applied, the configuration rollback capability reverts to a specific configuration based on a saved configuration file. If you want the configuration rollback capability, you must first save the running configuration before making any configuration changes.

Then, after entering configuration changes, you can use that saved configuration file to roll back the changes by using the configure replace target-url command. You can specify any saved configuration file as the rollback configuration. You are not limited to a fixed number of rollbacks, as is the case in some rollback models. Follow these guidelines when configuring and performing configuration replacement and rollback:. Note If you generate the replacement configuration file externally, it must comply with the format of files generated by Cisco IOS devices.

Using the configure replace command with the configuration archive and with the archive config command is optional but offers significant benefit for configuration rollback scenarios. Before using the archive config command , you must first configure the configuration archive. Starting in privileged EXEC mode, follow these steps to configure the configuration archive:. Specify the location and filename prefix for the files in the configuration archive.

Optional Set the maximum number of archive files of the running configuration to be saved in the configuration archive. Valid values are from 1 to The default is Note Before using this command, you must first enter the path archive configuration command to specify the location and filename prefix for the files in the configuration archive.

Optional Set the time increment for automatically saving an archive file of the running configuration in the configuration archive. Optional Save your entries in the configuration file. Starting in privileged EXEC mode, follow these steps to replace the running configuration file with a saved configuration file:. Optional Save the running configuration file to the configuration archive.

Note Enter the path archive configuration command before using this command. Make necessary changes to the running configuration. Replace the running configuration file with a saved configuration file. The total number of passes also appears. If you do not enter the configure confirm command within the specified time limit, the configuration replacement operation is automatically stopped.

In other words, the running configuration file is restored to the configuration that existed before you entered the configure replace command. Note You must first enable the configuration archive before you can use the time seconds command line option. Optional Confirm replacement of the running configuration with a saved configuration file. Note Use this command only if the time seconds keyword and argument of the configure replace command are specified.

This section describes how to archive download and upload software image files, which contain the system software, the Cisco IOS code, and the embedded device manager software. You can replace the current image with the new one or keep the current image in flash memory after a download.

You can also use the boot auto-download-sw global configuration command to specify a URL to use to get an image for automatic software upgrades. When you enter this command, the master switch uses this URL in case of a version mismatch. You can use this uploaded image for future downloads to the same switch or to another of the same type.

The protocol that you use depends on which type of server you are using. Note For a list of software images and the supported upgrade paths, see the release notes. The Cisco IOS image is stored as a. A subdirectory contains the files needed for web management. The image is stored on the system board flash memory flash:. You can use the show version privileged EXEC command to see the software version that is currently running on your switch.

In the display, check the line that begins with System image file is It shows the directory name in flash memory where the image is stored. You can also use the dir filesystem : privileged EXEC command to see the directory names of other software images that you might have stored in flash memory.

Software images on a server or downloaded from Cisco. This example shows some of the information contained in an info file. Table B-3 provides additional details about this information:. Table B-3 info File Description. Specifies the Cisco IOS image version string suffix. Specifies the name of the Cisco IOS image in the file. Specifies the size of all the images the Cisco IOS image and the web management files in the file, which is an approximate measure of the flash memory needed. Specifies the minimum amount of DRAM needed to run this image.

Describes the family of products on which the software can be installed. You download a switch image file from a server to upgrade the switch software. You can overwrite the current image with the new one or keep the current image after a download. You upload a switch image file to a server for backup purposes; this uploaded image can be used for future downloads to the same or another switch of the same type. Before you begin downloading or uploading an image file by using TFTP, do these tasks:.

You can download a new image file and replace the current image or keep the current image. To keep the current image, follow Steps 1, 2, and 4. Copy the image to the appropriate TFTP directory on the workstation. Optional Download the image files from the TFTP server to the switch, and overwrite the current image.

The download algorithm verifies that the image is appropriate for the switch model and that enough DRAM is present, or it aborts the process and reports an error. If there is not enough space to install the new image and keep the current running image, the download process stops, and an error message is displayed. The algorithm installs the downloaded image on the system board flash device flash:.

The image is placed into a new directory named with the software version string, and the BOOT environment variable is updated to point to the newly installed image. For file-url , enter the directory name of the old image.

You can upload an image from the switch to a TFTP server. You can later download this image to the switch or to another switch of the same type. Use the upload feature only if the web management pages associated with the embedded device manager have been installed with the existing image.

Upload the currently running switch image to the TFTP server. The archive upload-sw privileged EXEC command builds an image file on the server by uploading these files in order: info, the Cisco IOS image, and the web management files. After these files are uploaded, the upload algorithm creates the file format. You upload a switch image file to a server for backup purposes. You can use this uploaded image for future downloads to the switch or another switch of the same type.

You can copy images files to or from an FTP server. When you copy an image file from the switch to a server by using FTP, the Cisco IOS software sends the first valid username in this list:. If you are writing to the server, the FTP server must be properly configured to accept the FTP write request from you.

Include the username in the archive download-sw or archive upload-sw privileged EXEC command if you want to specify a username only for that operation. If the server has a directory structure, the image file is written to or copied from the directory associated with the username on the server. For example, if the image file resides in the home directory of a user on the server, specify that user's name as the remote username.

Before you begin downloading or uploading an image file by using FTP, do these tasks:. You can download a new image file and overwrite the current image or keep the current image. To keep the current image, follow Steps 1 to 6 and Step 8.

Log into the switch through the console port or a Telnet session. Optional Download the image files from the FTP server to the switch, and overwrite the current image. Optional Download the image files from the FTP server to the switch, and keep the current image. If there is not enough space to install the new image and keep the running image, the download process stops, and an error message is displayed.

The algorithm installs the downloaded image onto the system board flash device flash:. For file-url , enter the directory name of the old software image. You can upload an image from the switch to an FTP server. You can later download this image to the same switch or to another switch of the same type. Log into the switch through the console port, the Ethernet management port, or remotely through a Telnet session by using the IP address of the Ethernet management port.

Upload the currently running switch image to the FTP server. The archive upload-sw command builds an image file on the server by uploading these files in order: info, the Cisco IOS image, and the web management files. You can use this uploaded image for future downloads to the same switch or another of the same type.

RCP provides another method of downloading and uploading image files between remote hosts and the switch. For the RCP copy request to execute successfully, an account must be defined on the network server for the remote username. If the server has a directory structure, the image file is written to or copied from the directory associated with the remote username on the server. Before you begin downloading or uploading an image file by using RCP, do these tasks:.

You can download a new image file and replace or keep the current image. To keep the current image, go to Step 6. Download the images file from the RCP server to the switch and overwrite the current image. Download the images file from the RCP server to the switch and keep the current image.

If there is not enough room to install the new image an keep the running image, the download process stops, and an error message is displayed. You can upload an image from the switch to an RCP server. The upload feature should be used only if the web management pages associated with the embedded device manager have been installed with the existing image.

Upload the currently running switch image to the RCP server. For switch stacks, the archive download-sw and archive upload-sw privileged EXEC commands can be used only through the stack master. To upgrade a switch that has an incompatible software image, use the archive copy-sw privileged EXEC command to copy the software image from an existing stack member to the one that has incompatible software.

Note To use the archive copy-sw privileged EXEC command, you must have downloaded from a TFTP server the images for both the stack member switch being added and the stack master. You use the archive download-sw privileged EXEC command to perform the download. Beginning in privileged EXEC mode from the stack member that you want to upgrade, follow these steps to copy the running image file from the flash memory of a different stack member:. Copy the running image file from a stack member, and then unconditionally reload the updated stack member.

Note At least one stack member must be running the image that is to be copied to the switch that is running the incompatible software. If you do not specify this stack member number, the default is to copy the running image file to all stack members. For source-stack-member-number , specify the number of the stack member the source from which to copy the running image file. The stack member number range is 1 to 9. Reset the updated stack member, and put this configuration change into effect.

Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. Log in to Save Content. PDF - Complete Book Updated: September 11, Working with the Flash File System The flash file system is a single flash device on which you can store files. Switch show file systems.

Size b Free b Type Flags Prefixes. Table B-1 show file systems Field Descriptions Field. Setting the Default File System You can specify the file system or directory that the system uses as the default file system by using the cd filesystem: privileged EXEC command. Displaying Information about Files on a File System You can view a list of the contents of a file system before manipulating its contents.

Switch show memory. Processor 2BF1A9C Driver te 44 Changing Directories and Displaying the Working Directory Beginning in privileged EXEC mode, follow these steps to change directories and to display the working directory. Caution When files and directories are deleted, their contents cannot be recovered. Copying Files To copy a file from a source to a destination, use the copy source-url destination-url privileged EXEC command.

Deleting Files When you no longer need a file on a flash memory device, you can permanently delete it. Caution When files are deleted, their contents cannot be recovered. Switch delete myconfig. Creating, Displaying, and Extracting Files You can create a file and write files into it, list the files in a file, and extract the files from a file as described in the next sections. Working with Configuration Files This section describes how to create, load, and maintain configuration files.

Guidelines for Creating and Using Configuration Files Creating configuration files can aid in your switch configuration. Use these guidelines when creating a configuration file: We recommend that you connect through the console port or Ethernet management port for the initial configuration of the switch.

If you are accessing the switch through a network connection instead of through a direct connection to the console port or Ethernet management port, keep in mind that some configuration changes such as changing the switch IP address or disabling ports can cause a loss of connectivity to the switch. This example shows a switch stack.

In this example, the active switch is stack member 1; the file system on stack member 2 is displayed as flash, the file system on stack member 3 is displayed as flash and so on up to stack member 9, displayed as flash for a 9-member stack. The example also shows the crashinfo directories and a USB flash drive plugged into the active switch :.

You can copy a remote file to null to find its size. You can specify the file system or directory that the system uses as the default file system by using the cd filesystem: privileged EXEC command. You can set the default file system to omit the filesystem: argument from related commands. For example, for all privileged EXEC commands that have the optional filesystem: argument, the system uses the file system specified by the cd command.

You can display the current default file system as specified by the cd command by using the pwd privileged EXEC command. You can view a list of the contents of a file system before manipulating its contents. For example, before copying a new configuration file to flash memory, you might want to verify that the file system does not already contain a configuration file with the same name.

Similarly, before copying a flash configuration file to another location, you might want to verify its filename for use in another command. To display information about files on a file system, use one of the privileged EXEC commands listed in the following table.

Displays a list of files on a file system. Displays more information about each of the files on a file system. Displays information about a specific file. Displays a list of open file descriptors. File descriptors are the internal representations of open files. You can use this command to see if another user has a file open.

Follow these steps to change directories and to display the working directory:. Enables privileged EXEC mode. Enter your password if prompted. Displays the directories on the specified file system. For filesystem: , use flash: for the system board flash device.

To access flash partitions of switch members in a stack, use flash- n where n is the stack member number. For example, flash Navigates to the specified directory. Beginning in privileged EXEC mode, follow these steps to create a directory:. Creates a new directory. You are prompted only once at the beginning of this deletion process.

For filesystem , use flash: for the system board flash device. For file-url , enter the name of the directory to be deleted. All of the files in the directory and the directory are removed. To copy a file from a source to a destination, use the copy source-url destination-url privileged EXEC command.

For the source and destination URLs, you can use running-config and startup-config keyword shortcuts. For example, the copy running-config startup-config command saves the currently running configuration file to the NVRAM section of flash memory to be used as the configuration during system initialization. You can also copy from special file systems xmodem: , ymodem: as the source for the file from a network machine that uses the Xmodem or Ymodem protocol.

Some invalid combinations of source and destination exist. Specifically, you cannot copy these combinations:. From a device to the same device for example, the copy flash: flash: command is invalid. To copy a file from one switch in a stack to another switch in the same stack, use the flash-X: notation, where X is the switch number.

To view all switch es in a stack, use the show switch command in privileged EXEC mode, as in the following example of a 9-member switch stack:. To view all file systems available to copy on a specific switch , use the copy command as in the following example of a 5-member stack:. This example shows how to copy a config file stored in the flash partition of switch 2 to the flash partition of switch 4.

It assumes that switch 2 and switch 4 are in the same stack. When you no longer need a file on a flash memory device, you can permanently delete it. If you omit the filesystem: option, the switch uses the default device specified by the cd command.

For file-url , you specify the path directory and the name of the file to be deleted. You can create a file and write files into it, list the files in a file, and extract the files from a file as described in the next sections. Beginning in privileged EXEC mode, follow these steps to create a file, display the contents, and extract it:.

For destination-url, specify the destination URL alias for the local or network file system and the name of the file to create:. Local flash file system syntax:. You can also specify an optional list of files or directories within the source directory to add to the new file. If none are specified, all files and directories at this level are written to the newly created file. For source-url , specify the source URL alias for the local or network file system.

The -filename. These options are supported:. You can also limit the file displays by specifying a list of files or directories after the file. Only those files appear. If none are specified, all files and directories appear. Extracts a file into a directory on the flash file system. For source-url , specify the source URL alias for the local file system. If none are specified, all files and directories are extracted.

Displays the contents of any readable file, including a file on a remote file system. Configuration files contain commands entered to customize the function of the Cisco IOS software. A way to create a basic configuration file is to use the setup program or to enter the setup privileged EXEC command.

You might want to perform this for one of these reasons:. To use the configuration file for another switch. For example, you might add another switch to your network and want it to have a configuration similar to the original switch. By copying the file to the new switch, you can change the relevant parts rather than recreating the whole file.

To load the same configuration commands on all the switches in your network so that all the switches have similar configurations. You might perform this task to back up a current configuration file to a server before changing its contents so that you can later restore the original configuration file from the server. The protocol you use depends on which type of server you are using.

Creating configuration files can aid in your switch configuration. Configuration files can contain some or all of the commands needed to configure one or more switches. For example, you might want to download the same configuration file to several switches that have the same hardware configuration. We recommend that you connect through the console port or Ethernet management port for the initial configuration of the switch.

If you are accessing the switch through a network connection instead of through a direct connection to the console port or Ethernet management port, keep in mind that some configuration changes such as changing the switch IP address or disabling ports can cause a loss of connectivity to the switch.

If no password has been set on the switch, we recommend that you set one by using the enable secret secret-password global configuration command. The switch does not erase the existing running configuration before adding the commands. If a command in the copied configuration file replaces a command in the existing configuration file, the existing command is erased.

For example, if the copied configuration file contains a different IP address in a particular command than the existing configuration, the IP address in the copied configuration is used. However, some commands in the existing configuration might not be replaced or negated. In this case, the resulting configuration file is a mixture of the existing configuration file and the copied configuration file, with the copied configuration file having precedence.

Startup configuration files are used during system startup to configure the software. Running configuration files contain the current configuration of the software. The two configuration files can be different. For example, you might want to change the configuration for a short time period rather than permanently. In this case, you would change the running configuration but not save the configuration byusing the copy running-config startup-config privileged EXEC command.

When creating a configuration file, you must list commands logically so that the system can respond appropriately. This is one method of creating a configuration file:. Extract the portion of the configuration file with the desired commands, and save it in a new file. Copy the configuration file to the appropriate server location. You can configure the switch by using configuration files you create, download from another switch, ordownload from a TFTP server.

You can copy upload configuration files to a TFTP server for storage. Before you begin downloading or uploading a configuration file by using TFTP, do these tasks:. Ensure that the workstation acting as the TFTP server is properly configured. To restart the daemon, either stop the inetd process and restart it, or enter a fastboot command on the SunOS 4.

For more information on the TFTP daemon, see the documentation for your workstation. Ensure that the switch has a route to the TFTP server. The switch and the TFTP server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the TFTP server by using the ping command. For download operations, ensure that the permissions on the file are set correctly.

The permissionon the file should be world-read. Before uploading the configuration file, you might need to create an empty file on the TFTP server. To create an empty file, enter the touch filename command, where filename is the name of the file you will use when uploading it to the server.

During upload operations, if you are overwriting an existing file including an empty file, if you had to create one on the server, ensure that the permissions on the file are set correctly. Permissions on the file should be world-write. To configure the switch by using a configuration file downloaded from a TFTP server, follow these steps:.

Copy the configuration file to the appropriate TFTP directory on the workstation. You can only enter the flash n parameter for example, flash3 on Catalyst E switches. The configuration file downloads, and the commands are executed as the file is parsed line-by-line. This example shows how to configure the software from the file tokyo-confg at IP address To upload a configuration file from a switch to a TFTP server for storage, follow these steps:.

Log into the switch through the console port, the Ethernet management port, or a Telnet session. Upload the switch configuration to the TFTP server. This example shows how to upload a configuration file from a switch to a TFTP server:. You can copy a configuration file from the switch to an FTP server. When you copy a configuration file from the switch to a server using FTP, the Cisco IOS software sends the first valid username it encounters in the following sequence:.

The username specified in the copy EXEC command, if a username is specified. The username set by the ip ftp username global configuration command, if the command is configured. The switch sends the first valid password it encounters in the following sequence:. The password specified in the copy command, if a password is specified.

The password set by the ip ftp password command, if the command is configured. The switch forms a password username switch name. The variable username is the username associated with the current session, switch name is the configured host name, and domain is the domain of the switch.

The username and password must be associated with an account on the FTP server. If you are writing to the server, the FTP server must be properly configured to accept the FTP write request from the user on the switch. If the server has a directory structure, the configuration file or image is written to or copied from the directory associated with the username on the server. For example, if the system image resides in the home directory of a user on the server, specify that user name as the remote username.

Refer to the documentation for your FTP server for more information. Use the ip ftp username and ip ftp password global configuration commands to specify a username and password for all copies. Include the username in the copy EXEC command if you want to specify a username for that copy operation only.

Before you begin downloading or uploading a configuration file by using FTP, do these tasks:. Ensure that the switch has a route to the FTP server. The switch and the FTP server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the FTP server by using the ping command. If you are accessing the switch through the console or a Telnet session and you do not have a valid username, make sure that the current FTP username is the one that you want to use for the FTP download.

You can enter the show users privileged EXEC command to view the valid username. If you do not want to use this username, create a new FTP username by using the ip ftp username username global configuration command during all copy operations. If you are accessing the switch through a Telnet session and you have a valid username, this username is used, and you do not need to set the FTP username. Include the username in the copy command if you want to specify a username for only that copy operation.

When you upload a configuration file to the FTP server, it must be properly configured to accept the write request from the user on the switch. Enter global configuration mode on the switch. This step is required only if you override the default remote username or password see Steps 2, 3, and 4. Using FTP, copy the configuration file from a network server to the running configuration or to the startup configuration file.

This example shows how to copy a configuration file named host1-confg from the netadmin1 directory on the remote server with an IP address of This example shows how to specify a remote username of netadmin1. The software copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using FTP, store the switch running or startup configuration file to the specified location. This example shows how to copy the running configuration file named switch2-confg to the netadmin1 directory on the remote host with an IP address of This example shows how to store a startup configuration file on a server by using FTP to copy the file:.

The RCP provides another method of downloading, uploading, and copying configuration files between remote hosts and the switch. The RCP copy commands rely on the rsh server or daemon on the remote system. You only need to have access to a server that supports the remote shell rsh.

Most UNIX systems support rsh. Because you are copying a file from one place to another, you must have read permission on the source file and write permission on the destination file. If the destination file does not exist, RCP creates it for you. When you copy a configuration file from the switch to a server, the Cisco IOS software sends the first valid username inthis list:. The username specified in the copy command if a username is specified. The username set by the ip rcmd remote-username username global configuration command if the command is configured.

The remote username associated with the current TTY terminal process. For example, if the user is connected to the router through Telnet and was authenticated through the username command, the switch software sends the Telnet username as the remote username. For a successful RCP copy request, you must define an account on the network server for the remote username.

If the server has a directory structure, the configuration file is written to or copied from the directory associated with the remote username on the server. For example, if the configuration file is in the home directory of a user on the server, specify that user's name as the remote username. Before you begin downloading or uploading a configuration file by using RCP, do these tasks:.

Ensure that the workstation acting as the RCP server supports the remote shell rsh. Ensure that the switch has a route to the RCP server. The switch and the server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the RCP server by using the ping command. If you are accessing the switch through the console or a Telnet session and you do not have a valid username, make sure that the current RCP username is the one that you want to use for the RCP download.

If you do not want to use this username, create a new RCP username by using the ip rcmd remote-username username global configuration command to be used during all copy operations. If you are accessing the switch through a Telnet session and you have a valid username, this username is used, and you do not need to set the RCP username.

When you upload a file to the RCP server, it must be properly configured to accept the RCP write request from the user on the switch. For UNIX systems, you must add an entry to the. For example, suppose that the switch contains these configuration lines:. If the switch IP address translates to Switch1. This step is required only if you override the default remote username see Steps 2 and 3. Using RCP, copy the configuration file from a network server to the running configuration or to the startup configuration file.

Then it copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using RCP, copy the configuration file from a switch running configuration or startup configuration file to a network server.

This example shows how to store a startup configuration file on a server:. You can clear the configuration information from the startup configuration. If you reboot the switch with no startup configuration, the switch enters the setup program so that you can reconfigure the switch with all new settings. To delete a saved configuration from flash memory, use the delete flash:filename privileged EXEC command.

Depending on the setting of the file prompt global configuration command, you might be prompted for confirmation before you delete a file. By default, the switch prompts for confirmation on destructive file operations. The configuration replacement and rollback feature replaces the running configuration with any saved Cisco IOS configuration file.

You can use the rollback function to roll back to a previous configuration. The Cisco IOS configuration archive is intended to provide a mechanism to store, organize, and manage an archive of Cisco IOS configuration files to enhance the configuration rollback capability provided by the configure replace command.

Before this feature was introduced, you could save copies of the running configuration using the copy running-config destination-url command, storing the replacement file either locally or remotely. However, this method lacked any automated file management.

On the other hand, the Configuration Replace and Configuration Rollback feature provides the capability to automatically save copies of the running configuration to the Cisco IOS configuration archive. These archived files serve as checkpoint configuration references and can be used by the configure replace command to revert to previous configuration states.

The archive config command allows you to save Cisco IOS configurations in the configuration archive using a standard location and filename prefix that is automatically appended with an incremental version number and optional timestamp as each consecutive file is saved.

This functionality provides a means for consistent identification of saved Cisco IOS configuration files. You can specify how many versions of the running configuration are kept in the archive. After the maximum number of files are saved in the archive, the oldest file is automatically deleted when the next, most recent file is saved. The show archive command displays information for all configuration files saved in the Cisco IOS configuration archive.

The configure replace privileged EXEC command replaces the running configuration with any saved configuration file. When you enter the configure replace command, the running configuration is compared with the specified replacement configuration, and a set of configuration differences is generated.

The resulting differences are used to replace the configuration. The configuration replacement operation is usually completed in no more than three passes. To prevent looping behavior no more than five passes are performed. You can use the copy source-url running-config privileged EXEC command to copy a stored configuration file to the running configuration.

When using this command as an alternative to the configure replace target-ur l privileged EXEC command, note these major differences:. The copy source-url running-config command is a merge operation and preserves all the commands from both the source file and the running configuration. This command does not remove commands from the running configuration that are not present in the source file. In contrast, the configure replace target-url command removes commands from the running configuration that are not present in the replacement file and adds commands to the running configuration that are not present.

You can also use the configure replace command to roll back changes that were made since the previous configuration was saved. Instead of basing the rollback operation on a specific set of changes that were applied, the configuration rollback capability reverts to a specific configuration based on a saved configuration file. If you want the configuration rollback capability, you must first save the running configuration before making any configuration changes.

Then, after entering configuration changes, you can use that saved configuration file to roll back the changes by using the configure replace target-url command. You can specify any saved configuration file as the rollback configuration. You are not limited to a fixed number of rollbacks, as is the case in some rollback models. Follow these guidelines when configuring and performing configuration replacement and rollback:. Make sure that the switch has free memory larger than the combined size of the two configuration files the running configuration and the saved replacement configuration.

Otherwise, the configuration replacement operation fails. Using the configure replace command with the configuration archive and with the archive config command is optional but offers significant benefit for configuration rollback scenarios. Before using the archive config command , you must first configure the configuration archive. Starting in privileged EXEC mode, follow these steps to configure the configuration archive:.

Specify the location and filename prefix for the files in the configuration archive. Valid values are from 1 to The default is Starting in privileged EXEC mode, follow these steps to replace the running configuration file with a saved configuration file:. The total number of passes also appears. If you do not enter the configure confirm command within the specified time limit, the configuration replacement operation is automatically stopped. In other words, the running configuration file is restored to the configuration that existed before you entered the configure replace command.

You must first enable the configuration archive before you can use the time seconds command line option. This section describes how to archive download and upload software image files, which contain the system software, the Cisco IOS code, and the embedded device manager software.

To upgrade a switch in the stack that has an incompatible software image, use the archive copy-sw privileged EXEC command to copy the software image from an existing stack member to the incompatible switch. That switch automatically reloads and joins the stack as a fully functioning member. You can replace the current image with the new one or keep the current image in flash memory after a download. You can also use the boot auto-download-sw global configuration command to specify a URL to use to get an image for automatic software upgrades.

When you enter this command,the master switch uses this URL in case of a version mismatch. You can use this uploaded image for future downloads to the same switch or to another of the same type. The protocol that you use depends on which type of server you are using. The Cisco IOS image is stored as a. A subdirectory contains the files needed for web management. The image is stored on the system board flash memory flash:.

You can use the show version privileged EXEC command to see the software version that is currently running on your switch. In the display, check the line that begins with System image file is It shows the directory name in flash memory where the image is stored. You can also use the dir filesystem : privileged EXEC command to see the directory names of other software images that might be stored in flash memory. Software images located on a server or downloaded from Cisco. An info file, which serves as a table of contents for the tar file.

One or more subdirectories containing other images and files, such as Cisco IOS images and web management files. Specifies the Cisco IOS image size in the tar file, which is an approximate measure of how much flash memory is required to hold just the Cisco IOS image. Specifies the size of all the images the Cisco IOS image and the web management files in the tar file, which is an approximate measure of how much flash memory is required to hold them. Describes the family of products on which the software can be installed.

You download a switch image file from a server to upgrade the switch software. You can overwrite the current image with the new one or keep the current image after a download. You upload a switch image file to a server for backup purposes; this uploaded image can be used for future downloads to the same or another switch of the same type.

Instead of using the copy privileged EXEC command or the archive tar privileged EXEC command, we recommend using the archive download-sw and archive upload-sw privileged EXEC commands to download and upload software image files. For switch stacks, the archive download-sw and archive upload-sw privileged EXEC commands can only be used through the stack master.

Software images downloaded to the stack master are automatically downloaded to the rest of the stack members. To upgrade a switch with an incompatible software image, use the archive copy-sw privileged EXEC command to copy the software image from an existing stack member to the incompatible switch. Before you begin downloading or uploading an image file by using TFTP, do these tasks:.

The permission on the file should be world-read. Before uploading the image file, you might need to create an empty file on the TFTP server.

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The switch with the highest stack-member priority-value becomes the master. The system-level features supported on the master are supported on the entire stack. The master contains the saved and running configuration files for the stack. The configuration files include the system-level settings for the stack and the interface-level settings for each member. Each member has a current copy of these files for back-up purposes. You manage the stack through a single IP address. The IP address is a system-level setting and is not specific to the master or to any other member.

You can manage the stack through the same IP address even if you remove the master or any other member from the stack. The switch does not support MIBs to manage stacking-specific features such as stack membership and election. A standalone switch is a stack with one member that is also the master. You can connect one standalone switch to another Figure to create a stack containing two stack members, with one of them as the master.

You can connect standalone switches to an existing stack Figure to increase the stack membership. If you replace a stack member with an identical model, the new switch functions with the same configuration as the replaced switch assuming that the new switch is using the same member number as the replaced switch. The operation of the stack continues uninterrupted during membership changes unless you remove the master or you add powered-on standalone switches or stacks.

Note To prevent interrupted stack operations, make sure the switches that you add to or remove from the stack are powered off. The last two port LEDs on all switches in the stack should be green. If any one or both of any the last two port LEDs are not green, the stack is not operating at full bandwidth.

The stack master is elected based on one of these factors in the order listed:. The switch that is currently the stack master. The switch with the highest stack member priority value. Note We recommend you assign the highest priority value to the switch that you want to be the master. The switch is then re-elected as master if a re-election occurs. A stack master keeps its role unless one of these events occurs:.

When you power on or reset an entire stack, some stack members might not participate in the master election. The new master is available after a few seconds. In the meantime, the switch stack uses the forwarding tables in memory to minimize network disruption. The physical interfaces on the other available stack members are not affected while a new stack master is elected and is resetting. When a new master is elected and the previous stack master becomes available, the previous master does not resume its role as stack master.

When the stack initializes, the MAC address of the master determines the bridge ID that the stack in the network. However, when the persistent MAC address feature is enabled, there is an approximate 4-minute delay before the stack MAC address changes. During this time period, if the previous master rejoins the stack, the stack continues to use its MAC address as the stack MAC address, even if the switch is now a member and not a master.

If the previous master does not rejoin the stack during this period, the stack takes the MAC address of the new stack master as the stack MAC address. The member number 1 to identifies each member in the stack. The member number also determines the interface-level configuration that a member uses. A new, out-of-the-box switch one that has not joined a stack or has not been manually assigned a member number ships with a default member number of 1. When it joins a stack, its default stack member number changes to the lowest available member number in the stack.

Members in the same stack cannot have the same member number. If the number is being used by another member in the stack, the switch selects the lowest available number in the stack. If you manually change the member number and no interface-level configuration is associated with that number, that member resets to its default configuration.

You cannot use the switch current-stack-member-number renumber new-stack-member-number global configuration command on a provisioned switch. If you do, the command is rejected. See the following sections for information about stack member configuration:. A high priority value for a member increases the chance that it will be elected master and keep its member number. The priority value can be 1 to The default priority value is 1. Note We recommend that you assign the highest priority value to the switch that you want to be the stack master.

The new priority value takes effect immediately but does not affect the current master until the current master or the stack resets. You can use the offline configuration feature to provision to configure a new switch before it joins the stack. You can configure the member number, the switch type, and the interfaces associated with a switch that is not yet part of the stack.

That configuration is the provisioned configuration. The switch to be added to the stack and to get this configuration is the provisioned switch. The provisioned configuration is automatically created when a switch is added to a stack and when no provisioned configuration exists. You can manually create the provisioned configuration by using the switch stack-member-number provision type global configuration command. When you configure the interfaces for a provisioned switch for example, as part of a VLAN , the information appears in the stack running configuration whether or not the provisioned switch is part of the stack.

The interface for the provisioned switch is not active and does not appear in the display of a specific feature for example, in the show vlan user EXEC command output. Entering the no shutdown interface configuration command has no effect. The startup configuration file ensures that the stack can reload and can use the saved information whether or not the provisioned switch is part of the stack. When you add a provisioned switch to the switch stack, the stack applies either the provisioned configuration or the default configuration to it.

Table lists the events that occur when the switch stack compares the provisioned configuration with the provisioned switch. The stack member numbers and the switch types match. If the stack member number of the provisioned switch matches the stack member number in the provisioned configuration on the stack, and.

If the switch type of the provisioned switch matches the switch type in the provisioned configuration on the stack. The switch stack applies the provisioned configuration to the provisioned switch and adds it to the stack. The stack member numbers match but the switch types do not match. If the stack member number of the provisioned switch matches the stack member number in the provisioned configuration on the stack, but.

The switch type of the provisioned switch does not match the switch type in the provisioned configuration on the stack. The switch stack applies the default configuration to the provisioned switch and adds it to the stack. The provisioned configuration is changed to reflect the new information. The stack member number is not found in the provisioned configuration. The stack member number of the provisioned switch is in conflict with an existing stack member.

The stack master assigns a new stack member number to the provisioned switch. The stack member numbers and the switch types match:. If the new stack member number of the provisioned switch matches the stack member number in the provisioned configuration on the stack, and.

The stack member numbers match, but the switch types do not match:. The stack member number of the provisioned switch is not found in the provisioned configuration. If you add a provisioned switch that is a different type than specified in the provisioned configuration to a powered-down switch stack and then apply power, the switch stack rejects the now incorrect switch stack-member-number provision type global configuration command in the startup configuration file.

However, during stack initialization, the nondefault interface configuration information in the startup configuration file for the provisioned interfaces potentially of the wrong type are executed. Depending on how different the actual switch type is from the previously provisioned switch type, some commands are rejected, and some commands are accepted. Note If the switch stack does not contain a provisioned configuration for a new switch, the switch joins the stack with the default interface configuration.

The switch stack then adds to its running configuration a switch stack-member-number provision type global configuration command that matches the new switch. When a provisioned switch in a switch stack fails, is removed from the stack, and is replaced with another switch, the stack applies either the provisioned configuration or the default configuration to it. If you remove a provisioned switch from the switch stack, the configuration associated with the removed stack member remains in the running configuration as provisioned information.

To completely remove the configuration, use the no switch stack-member-number provision global configuration command. All stack members must run the same Cisco IOS software version to ensure compatibility in the stack protocol version among the members. The stack protocol version has a major version number and a minor version number for example 1. Switches with the same Cisco IOS software version have the same stack protocol version.

All features function properly across the stack. These switches with the same software version as the master immediately join the stack. If an incompatibility exists, a system message describes the cause of the incompatibility on the specific stack members. The master sends the message to all members. Switches with different Cisco IOS software versions likely have different stack protocol versions. Switches with different major version numbers are incompatible and cannot exist in the same stack.

Switches with the same major version number but with a different minor version number as the master are considered partially compatible. When connected to a stack, a partially compatible switch enters v ersion-mismatch mode and cannot join the stack as a fully functioning member. The software detects the mismatched software and tries to upgrade or downgrade the switch in version-mismatch mode with the stack image or with a tar file image from the stack flash memory.

The software uses the automatic upgrade auto-upgrade and the automatic advise auto-advise features. The port LEDs on switches in version-mismatch mode will also stay off. Pressing the Mode button does not change the LED mode. Note Auto-advise and auto-copy identify which images are running by examining the info file and by searching the directory structure on the switch stack.

If you download your image by using the copy tftp: command instead of by using the archive download-sw privileged EXEC command, the correct directory structure is not properly created. When the software detects mismatched software and tries to upgrade the switch in version-mismatch mode, two software processes are involved: automatic upgrade and automatic advise.

Auto-copy occurs if auto-upgrade is enabled, if there is enough flash memory in the switch in version-mismatch mode, and if the software image running on the stack is suitable for the switch in version-mismatch mode. Note A switch in version-mismatch mode might not run all released software. For example, new switch hardware is not recognized in earlier versions of software. In that case, the auto-extract process searches all switches in the stack, whether they are in version-mismatch mode or not, for the tar file needed to upgrade the switch stack or the switch in version-mismatch mode.

The tar file can be in any flash file system in the stack including the switch in version-mismatch mode. If a tar file suitable for the switch in version-mismatch mode is found, the process extracts the file and automatically upgrades that switch. The auto-upgrade auto-copy and auto-extract processes start a few minutes after the mismatched software is detected.

When the auto-upgrade process is complete, the switch that was in version-mismatch mode reloads and joins the stack as a fully functioning member. If you have both cables connected during the reload, network downtime does not occur because the stack operates on two rings. The auto-advise software does not give suggestions when the stack software and the software of the switch in version-mismatch mode do not contain the same feature sets. The same events occur when cryptographic and noncryptographic images are running.

When you add a switch that has a different minor version number to the stack, the software displays messages in sequence assuming that there are no other system messages generated by the switch. This example shows that the stack detected a new switch that is running a different minor version number than the stack. Auto-copy launches, finds suitable software to copy from a member to the switch in version-mismatch mode, upgrades the switch in version-mismatch mode, and then reloads it:.

Auto-copy launches but cannot find software in the stack to copy to the switch in version-mismatch mode to make it compatible with the stack. The auto-advise process launches and recommends that you download a tar file from the network to the switch in version-mismatch mode:. You can upgrade a switch that has an incompatible software image by using the archive copy-sw privileged EXEC command to copy the software image from an existing member.

That switch automatically reloads with the new image and joins the stack as a fully functioning member. The master has the saved and running configuration files for the stack. All members periodically receive synchronized copies of the configuration files from the master.

If the master becomes unavailable, any member assuming the role of master has the latest configuration files. A new, out-of-box switch joining a stack uses the system-level settings of that stack. If a switch is moved to a different stack, it loses its saved configuration file and uses the system-level configuration of the new stack. The interface-specific configuration of each member is associated with its member number. A stack member keeps its number unless it is manually changed or it is already used by another member in the same stack.

If you r eplace a failed member with an identical model, the replacement member automatically uses the same interface-specific configuration. You do not need to reconfigure the interface settings. The replacement switch must have the same member number as the failed switch. You back up and restore the stack configuration in the same way as you do for a standalone switch configuration.

You manage the stack and the member interfaces through the master. You cannot manage members as individual switches. The stack is managed through a system-level IP address. You can still manage the stack through the same IP address even if you remove the master or any other stack member from the stack, provided there is IP connectivity.

Note Members keep their IP addresses when you remove them from a stack. To avoid having two devices with the same IP address in your network, change the IP address of the switch that you removed from the stack. The Secure Shell S SH connectivity to the stack can be lost if a master running the cryptographic version fails and is replaced by a switch that is running a noncryptographic version.

We recommend that a switch running the cryptographic version of the software be the master. You can connect to the master through the console port of one or more members. Be careful when using multiple CLI sessions to the master. Commands that you enter in one session are not displayed in the other sessions. Therefore, it is possible that you might not be able to identify the session from which you entered a command.

We recommend that you use only one CLI session when managing the stack. If you want to configure a specific member port, you must include the stack member number in the CLI notation. Most of the scenarios in Table assume at least two switches are connected through their ports. Table Switch Stack Configuration Scenarios. Master election specifically determined by existing masters. Only one of the two masters becomes the new stack master.

Master election specifically determined by the member priority value. Connect two switches through their ports. Use the switch stack-member-number priority new- priority-number global configuration command to set one member with a higher member priority value. Restart both members at the same time. The member with the higher priority value is elected master. Master election specifically determined by the configuration file. Assuming that both members have the same priority value:.

Make sure that one member has a default configuration and that the other member has a saved nondefault configuration file. The member with the saved configuration file is elected master. Master election specifically determined by the MAC address. Assuming that both members have the same priority value, configuration file, and software image, restart both stack members at the same time. The member with the lower MAC address is elected master. Assuming that one member has a higher priority value than the other member:.

Ensure that both members have the same member number. If necessary, use the switch current-stack-member-number renumber new-stack-member-number global configuration command. The member with the higher priority value keeps its member number. The other member has a new stack member number. Power off the new switch. Through their ports, connect the new switch to a powered-on stack.

Power on the new switch. The master is kept. The new switch is added to the stack. One of the remaining stack members becomes the new master. All other members in the stack remain members and do not restart. Through their ports, connect ten switches. Power on all switches. Two switches become masters. One master has stack members. The other master remains a standalone switch. Use the Mode button and port LEDs on the switches to identify which switches are masters and which switches belong to each master.

For information about the Mode button and the LEDs, see the hardware installation guide. Table shows the default switch stack configuration. Table Default Switch Stack Configuration. When a master is removed from the stack and a new master takes over, the MAC address of the new master to become the new stack MAC address.

During this time period, if the previous master rejoins the stack, the stack continues to use that MAC address as the stack MAC address, even if the switch is now a member and not a master. If the previous master does not rejoin the stack during this period, the stack uses the MAC address of the new master as the stack MAC address. This procedure is optional. Enable a time delay after a stack-master change before the stack MAC address changes to that of the new stack master.

If the previous stack master rejoins the stack during this period, the stack uses that MAC address as the stack MAC address. If you enter the no stack-mac persistent timer command after a new stack master takes over, before the time expires, the stack uses the current master MAC address. Verify that the stack MAC address timer is enabled. The output shows stack-mac persistent timer and the time in minutes. The output shows Mac persistency wait time with the number of minutes configured and the stack MAC address.

Optional Save your entries in the configuration file. Use the no stack-mac persistent timer global configuration command to disable the persistent MAC address feature. This example shows how to configure the persistent MAC address feature for a 7-minute time delay and to verify the configuration:.

Note This task is available only from the master. Beginning in privileged EXEC mode, follow these steps to assign a member number to a member. Specify the current member number and the new member number for the member.

The range is 1 to. You can display the current member number by using the show switch user EXEC command. Beginning in privileged EXEC mode, follow these steps to assign a priority value to a member: This procedure is optional. Specify the member number and the new priority for the member.

The member number range is 1 to. The priority value range is 1 to You can display the current priority value by using the show switch user EXEC command. Beginning in privileged EXEC mode, follow these steps to provision a new member for a stack. Specify the member number for the provisioned switch. The switch does not erase the existing running configuration before adding the commands.

If a command in the copied configuration file replaces a command in the existing configuration file, the existing command is erased. For example, if the copied configuration file contains a different IP address in a particular command than the existing configuration, the IP address in the copied configuration is used.

However, some commands in the existing configuration might not be replaced or negated. In this case, the resulting configuration file is a mixture of the existing configuration file and the copied configuration file, with the copied configuration file having precedence.

Startup configuration files are used during system startup to configure the software. Running configuration files contain the current configuration of the software. The two configuration files can be different. For example, you might want to change the configuration for a short time period rather than permanently. In this case, you would change the running configuration but not save the configuration by using the copy running-config startup-config privileged EXEC command.

When creating a configuration file, you must list commands logically so that the system can respond appropriately. This is one method of creating a configuration file:. Step 1 Copy an existing configuration from a switch to a server. Step 3 Extract the portion of the configuration file with the desired commands, and save it in a new file. Step 4 Copy the configuration file to the appropriate server location. Step 5 Make sure the permissions on the file are set to world-read.

You can configure the switch by using configuration files you create, download from another switch, or download from a TFTP server. You can copy upload configuration files to a TFTP server for storage. Before you begin downloading or uploading a configuration file by using TFTP, do these tasks:. To restart the daemon, either stop the inetd process and restart it, or enter a fastboot command on the SunOS 4.

For more information on the TFTP daemon, see the documentation for your workstation. To configure the switch by using a configuration file downloaded from a TFTP server, follow these steps:. Step 3 Log into the switch through the console port, the Ethernet management port, or a Telnet session. Note You can only enter the flash n parameter for example, flash3 on Catalyst E switches.

The configuration file downloads, and the commands are executed as the file is parsed line-by-line. This example shows how to configure the software from the file tokyo-confg at IP address To upload a configuration file from a switch to a TFTP server for storage, follow these steps:.

Step 2 Log into the switch through the console port, the Ethernet management port, or a Telnet session. This example shows how to upload a configuration file from a switch to a TFTP server:. You can copy configuration files to or from an FTP server.

When you copy a configuration file from the switch to a server by using FTP, the Cisco IOS software sends the first valid username in this list:. The switch sends the first valid password in this list:. The username and password must be associated with an account on the FTP server. Use the ip ftp username and ip ftp password commands to specify a username and password for all copies. Include the username in the copy command if you want to specify only a username for that copy operation.

If the server has a directory structure, the configuration file is written to or copied from the directory associated with the username on the server. For example, if the configuration file resides in the home directory of a user on the server, specify that user's name as the remote username.

For more information, see the documentation for your FTP server. Before you begin downloading or uploading a configuration file by using FTP, do these tasks:. Log into the switch through the console port, the Ethernet management port, or a Telnet session. This step is required only if you override the default remote username or password see Steps 4, 5, and 6. Using FTP, copy the configuration file from a network server to the running configuration or to the startup configuration file.

This example shows how to copy a configuration file named host1-confg from the netadmin1 directory on the remote server with an IP address of This example shows how to specify a remote username of netadmin1. The software copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using FTP, store the switch running or startup configuration file to the specified location. This example shows how to copy the running configuration file named switch2-confg to the netadmin1 directory on the remote host with an IP address of This example shows how to store a startup configuration file on a server by using FTP to copy the file:.

The RCP provides another method of downloading, uploading, and copying configuration files between remote hosts and the switch. The RCP copy commands rely on the rsh server or daemon on the remote system. You only need to have access to a server that supports the remote shell rsh. Most UNIX systems support rsh. Because you are copying a file from one place to another, you must have read permission on the source file and write permission on the destination file.

If the destination file does not exist, RCP creates it for you. When you copy a configuration file from the switch to a server, the Cisco IOS software sends the first valid username in this list:. For a successful RCP copy request, you must define an account on the network server for the remote username. If the server has a directory structure, the configuration file is written to or copied from the directory associated with the remote username on the server.

For example, if the configuration file is in the home directory of a user on the server, specify that user's name as the remote username. Before you begin downloading or uploading a configuration file by using RCP, do these tasks:. If the switch IP address translates to Switch1. For more information, see the documentation for your RCP server.

This step is required only if you override the default remote username see Steps 4 and 5. Using RCP, copy the configuration file from a network server to the running configuration or to the startup configuration file. Then it copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using RCP, copy the configuration file from a switch running or startup configuration file to a network server. This example shows how to store a startup configuration file on a server:.

You can clear the configuration information from the startup configuration. If you reboot the switch with no startup configuration, the switch enters the setup program so that you can reconfigure the switch with all new settings. To clear the contents of your startup configuration, use the erase nvram: or the erase startup-config privileged EXEC command. To delete a saved configuration from flash memory, use the delete flash: filename privileged EXEC command.

Depending on the setting of the file prompt global configuration command, you might be prompted for confirmation before you delete a file. By default, the switch prompts for confirmation on destructive file operations. The configuration replacement and rollback feature replaces the running configuration with any saved Cisco IOS configuration file. You can use the rollback function to roll back to a previous configuration.

The configuration archive provides a mechanism to store, organize, and manage an archive of configuration files. The configure replace privileged EXEC command increases the configuration rollback capability. As an alternative, you can save copies of the running configuration by using the copy running-config destination-url privileged EXEC command, storing the replacement file either locally or remotely.

However, this method lacks any automated file management. The configuration replacement and rollback feature can automatically save copies of the running configuration to the configuration archive. You use the archive config privileged EXEC command to save configurations in the configuration archive by using a standard location and filename prefix that is automatically appended with an incremental version number and optional timestamp as each consecutive file is saved.

You can specify how many versions of the running configuration are kept in the archive. After the maximum number of files are saved, the oldest file is automatically deleted when the next, most recent file is saved. The show archive privileged EXEC command displays information for all the configuration files saved in the configuration archive.

The configure replace privileged EXEC command replaces the running configuration with any saved configuration file. When you enter the configure replace command, the running configuration is compared with the specified replacement configuration, and a set of configuration differences is generated. The resulting differences are used to replace the configuration. The configuration replacement operation is usually completed in no more than three passes. To prevent looping behavior no more than five passes are performed.

You can use the copy source-url running-config privileged EXEC command to copy a stored configuration file to the running configuration. When using this command as an alternative to the configure replace target-url privileged EXEC command, note these major differences:.

You can also use the configure replace command to roll back changes that were made since the previous configuration was saved. Instead of basing the rollback operation on a specific set of changes that were applied, the configuration rollback capability reverts to a specific configuration based on a saved configuration file.

If you want the configuration rollback capability, you must first save the running configuration before making any configuration changes. Then, after entering configuration changes, you can use that saved configuration file to roll back the changes by using the configure replace target-url command. You can specify any saved configuration file as the rollback configuration. You are not limited to a fixed number of rollbacks, as is the case in some rollback models.

Follow these guidelines when configuring and performing configuration replacement and rollback:. Note If you generate the replacement configuration file externally, it must comply with the format of files generated by Cisco IOS devices. Using the configure replace command with the configuration archive and with the archive config command is optional but offers significant benefit for configuration rollback scenarios.

Before using the archive config command , you must first configure the configuration archive. Starting in privileged EXEC mode, follow these steps to configure the configuration archive:. Specify the location and filename prefix for the files in the configuration archive. Optional Set the maximum number of archive files of the running configuration to be saved in the configuration archive. Valid values are from 1 to The default is Note Before using this command, you must first enter the path archive configuration command to specify the location and filename prefix for the files in the configuration archive.

Optional Set the time increment for automatically saving an archive file of the running configuration in the configuration archive. Optional Save your entries in the configuration file. Starting in privileged EXEC mode, follow these steps to replace the running configuration file with a saved configuration file:. Optional Save the running configuration file to the configuration archive. Note Enter the path archive configuration command before using this command.

Make necessary changes to the running configuration. Replace the running configuration file with a saved configuration file. The total number of passes also appears. If you do not enter the configure confirm command within the specified time limit, the configuration replacement operation is automatically stopped.

In other words, the running configuration file is restored to the configuration that existed before you entered the configure replace command. Note You must first enable the configuration archive before you can use the time seconds command line option. Optional Confirm replacement of the running configuration with a saved configuration file. Note Use this command only if the time seconds keyword and argument of the configure replace command are specified.

This section describes how to archive download and upload software image files, which contain the system software, the Cisco IOS code, and the embedded device manager software. You can replace the current image with the new one or keep the current image in flash memory after a download.

You can also use the boot auto-download-sw global configuration command to specify a URL to use to get an image for automatic software upgrades. When you enter this command, the master switch uses this URL in case of a version mismatch. You can use this uploaded image for future downloads to the same switch or to another of the same type.

The protocol that you use depends on which type of server you are using. Note For a list of software images and the supported upgrade paths, see the release notes. The Cisco IOS image is stored as a. A subdirectory contains the files needed for web management. The image is stored on the system board flash memory flash:. You can use the show version privileged EXEC command to see the software version that is currently running on your switch.

In the display, check the line that begins with System image file is It shows the directory name in flash memory where the image is stored. You can also use the dir filesystem : privileged EXEC command to see the directory names of other software images that you might have stored in flash memory. Software images on a server or downloaded from Cisco. This example shows some of the information contained in an info file. Table B-3 provides additional details about this information:.

Table B-3 info File Description. Specifies the Cisco IOS image version string suffix. Specifies the name of the Cisco IOS image in the file. Specifies the size of all the images the Cisco IOS image and the web management files in the file, which is an approximate measure of the flash memory needed. Specifies the minimum amount of DRAM needed to run this image.

Describes the family of products on which the software can be installed. You download a switch image file from a server to upgrade the switch software. You can overwrite the current image with the new one or keep the current image after a download. You upload a switch image file to a server for backup purposes; this uploaded image can be used for future downloads to the same or another switch of the same type.

Before you begin downloading or uploading an image file by using TFTP, do these tasks:. You can download a new image file and replace the current image or keep the current image. To keep the current image, follow Steps 1, 2, and 4. Copy the image to the appropriate TFTP directory on the workstation. Optional Download the image files from the TFTP server to the switch, and overwrite the current image.

The download algorithm verifies that the image is appropriate for the switch model and that enough DRAM is present, or it aborts the process and reports an error. If there is not enough space to install the new image and keep the current running image, the download process stops, and an error message is displayed.

The algorithm installs the downloaded image on the system board flash device flash:. The image is placed into a new directory named with the software version string, and the BOOT environment variable is updated to point to the newly installed image. For file-url , enter the directory name of the old image. You can upload an image from the switch to a TFTP server.

You can later download this image to the switch or to another switch of the same type. Use the upload feature only if the web management pages associated with the embedded device manager have been installed with the existing image. Upload the currently running switch image to the TFTP server. The archive upload-sw privileged EXEC command builds an image file on the server by uploading these files in order: info, the Cisco IOS image, and the web management files.

After these files are uploaded, the upload algorithm creates the file format. You upload a switch image file to a server for backup purposes. You can use this uploaded image for future downloads to the switch or another switch of the same type. You can copy images files to or from an FTP server. When you copy an image file from the switch to a server by using FTP, the Cisco IOS software sends the first valid username in this list:. If you are writing to the server, the FTP server must be properly configured to accept the FTP write request from you.

Include the username in the archive download-sw or archive upload-sw privileged EXEC command if you want to specify a username only for that operation. If the server has a directory structure, the image file is written to or copied from the directory associated with the username on the server. For example, if the image file resides in the home directory of a user on the server, specify that user's name as the remote username. Before you begin downloading or uploading an image file by using FTP, do these tasks:.

You can download a new image file and overwrite the current image or keep the current image. To keep the current image, follow Steps 1 to 6 and Step 8. Log into the switch through the console port or a Telnet session. Optional Download the image files from the FTP server to the switch, and overwrite the current image. Optional Download the image files from the FTP server to the switch, and keep the current image.

If there is not enough space to install the new image and keep the running image, the download process stops, and an error message is displayed. The algorithm installs the downloaded image onto the system board flash device flash:. For file-url , enter the directory name of the old software image. You can upload an image from the switch to an FTP server. You can later download this image to the same switch or to another switch of the same type.

Log into the switch through the console port, the Ethernet management port, or remotely through a Telnet session by using the IP address of the Ethernet management port. Upload the currently running switch image to the FTP server. The archive upload-sw command builds an image file on the server by uploading these files in order: info, the Cisco IOS image, and the web management files. You can use this uploaded image for future downloads to the same switch or another of the same type. RCP provides another method of downloading and uploading image files between remote hosts and the switch.

For the RCP copy request to execute successfully, an account must be defined on the network server for the remote username. If the server has a directory structure, the image file is written to or copied from the directory associated with the remote username on the server.

Before you begin downloading or uploading an image file by using RCP, do these tasks:. You can download a new image file and replace or keep the current image. To keep the current image, go to Step 6. Download the images file from the RCP server to the switch and overwrite the current image.

Download the images file from the RCP server to the switch and keep the current image. If there is not enough room to install the new image an keep the running image, the download process stops, and an error message is displayed. You can upload an image from the switch to an RCP server.

The upload feature should be used only if the web management pages associated with the embedded device manager have been installed with the existing image. Upload the currently running switch image to the RCP server. For switch stacks, the archive download-sw and archive upload-sw privileged EXEC commands can be used only through the stack master. To upgrade a switch that has an incompatible software image, use the archive copy-sw privileged EXEC command to copy the software image from an existing stack member to the one that has incompatible software.

Note To use the archive copy-sw privileged EXEC command, you must have downloaded from a TFTP server the images for both the stack member switch being added and the stack master. You use the archive download-sw privileged EXEC command to perform the download. Beginning in privileged EXEC mode from the stack member that you want to upgrade, follow these steps to copy the running image file from the flash memory of a different stack member:.

Copy the running image file from a stack member, and then unconditionally reload the updated stack member. Note At least one stack member must be running the image that is to be copied to the switch that is running the incompatible software. If you do not specify this stack member number, the default is to copy the running image file to all stack members.

For source-stack-member-number , specify the number of the stack member the source from which to copy the running image file. The stack member number range is 1 to 9. Reset the updated stack member, and put this configuration change into effect. Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. Log in to Save Content.

PDF - Complete Book Updated: September 11, Working with the Flash File System The flash file system is a single flash device on which you can store files. Switch show file systems. Size b Free b Type Flags Prefixes. Table B-1 show file systems Field Descriptions Field. Setting the Default File System You can specify the file system or directory that the system uses as the default file system by using the cd filesystem: privileged EXEC command.

Cisco 3560 software images dfmirage ultravnc mirror

10.7.6 Packet Tracer - Use a TFTP Server to Upgrade a Cisco IOS Image

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