Cisco 3750 in service software upgrade

cisco 3750 in service software upgrade

Software Version and Feature Set” section on page 4. • If you are upgrading to a new release, refer to the software upgrade filename for the. This document explains the step-by-step procedure to use the command-line interface (CLI) in order to upgrade the software image on Cisco. Details · Series Switch Stack IOS Upgrade - Manual .bin Image) · Step 1 - Download vurg.lightscar.xyz Image · Step 2 - Verify the Available Memory · Step 3 - Copy the. THUNDERBIRD 1991

You must use the combined tar file in order to upgrade the switch through the device manager. These software releases referred to the image that provides full Layer 3 routing and advanced services as the EMI. Table 1 lists the different file-naming conventions for releases earlier than and later than Cisco IOS Software Release The Sofware Advisor registered customers only tool helps to determine the feature set required for the funtionalities needed in the network.

The ships from the factory with the installation of a web-based device manager. The extraction process that takes place with a. The image directory has the same name as the Cisco IOS image. This directory stores the Cisco IOS image. Issue the dir flash: command in order to view the Flash file system. Here is a sample command output:. Refer to these sections in this document in order to upgrade the switch to a Cisco IOS Software release with a web-based device manager:.

There are no minimum DRAM requirements to consider before you upgrade software on the The internal Flash memory shipped with the switches are either 16 MB or 32 MB based on the model of the Catalyst switch. Refer to the Cisco Catalyst Data Sheet for more information. There is a limit to the number of images that you can store in Flash. Always check the size, in bytes, of the image in the Downloads - Switches registered customers only before you upgrade software.

Issue the dir flash: command in order to compare the size of this image with the free space in Flash. Here is a sample command output to delete a Cisco IOS image with a web-based device manager directory :. An upgrade can require you to free up even more space. The requirement depends on how many images you have stored in Flash. In this section, you are presented with the information to configure the features described in this document.

The procedure in this section copies the combined tar file to the switch. You copy the file to the switch from a TFTP server and extract the files. You can download an image file and replace the current image, or you can keep the current image. Note: 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.

Thus, you must be logged on to the master switch to perform this upgrade. Use the Decide Which Files to Use section of this document in order to identify the type of image and feature set that you want to download. Refer to Software Download - Cisco Catalyst Software registered customers only and find the image that you want to download. In order to obtain authorization and to download the cryptographic software files, click Catalyst Strong Cryptographic 3DES Software.

The bootloader can take up to 1 minute to upgrade the first time that you load the new software. Do not power cycle the switch during the bootloader upgrade. Issue the dir flash: command on the in order to verify the amount of free memory that you have for the upgrade. There are several options for the download of the image.

You can use the command-line options that appear in this section to have a new image overwrite the old image or leave the old image in flash. The example uses the archive download-sw command in order to retain the old image on the device. For a complete description of the commands available, refer to the archive download-sw section of Catalyst Switch Cisco IOS Commands. The image copy is complete, and you are ready for the reboot.

In order to verify that the current state of the switches is Ready , issue the show switch detail command. In order to verify that the new image is in flash for the stack members, issue the dir flash: command and the dir flash 1: command. In this example, there are two switch stack members.

If the stack configuration includes additional switches in the stack, issue the dir flash : command for each additional switch in the stack. Issue the show version command in order to verify that the old image is still the current operation system image. Issue the show boot command in order to verify that the new image is now the image in the BOOT path-list that will load at the next switch reload. Issue the reload command at the prompt and confirm in order to proceed with the reload.

The new code revision should come up and start to run as expected on all the switches in the stack. The previous section of this document explained how to upgrade IOS using the archive download-sw command. You can also upgrade the IOS manually switch-by-switch without disconnecting the stack cables.

The three major steps in this method are:. The archive download-sw command does all three steps during an automatic IOS upgrade. You can also perform these three steps in the manual IOS upgrade. This example has a switch stack with three switches. Switch 1 is the master switch and switches 2 and 3 are the member switches.

You need to make sure you have sufficient space available in the Flash of the master switch. The master switch should have twice the amount of space of the. This space is needed to store the. For example, if the. Extract the. After you extract the. You need to find the path where the. Note: This boot system switch all has been brought down to a second line due to spatial considerations. Reload the switch and verify that the switch runs the new Cisco IOS software release after the reload:.

A switch stack can be managed either with the web device manager or with the CLI. If you manage the switch with the CLI, you do not need the. This section explains the IOS upgrade with the. It is assumed that you have already configured the switch stack with an IOS image. This section explains how to copy and upgrade the new IOS in the switch stack. Note: The commands archive download-sw and archive upload-sw are applicable only for. 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.

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. Configuration File Types and Location Startup configuration files are used during system startup to configure the software. Creating a Configuration File By Using a Text Editor 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. Configure using tokyo-confg from Booting tokyo-confg from Write file tokyo-confg on host 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 username specified in the copy command if a username is specified.

The username set by the ip ftp username username global configuration command if the command is configured. The switch sends the first valid password in this list: The password specified in the copy command if a password is specified. The password set by the ip ftp password password global configuration command if the command is configured. The switch forms a password named username switchname. The variable username is the username associated with the current session, switchname is the configured hostname, and domain is the domain of the switch.

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. Configure using host1-confg from Loading byte file host1-confg:! Switch configure terminal.

Switch config ip ftp username netadmin1. Switch config ip ftp password mypass. Switch config end. Switch copy ftp: nvram:startup-config. Address of remote host [ Name of configuration file[rtr2-confg]? Configure using host2-confg from Loading byte file host2-confg:! Write file switch2-confg on host Switch config ip ftp username netadmin2. Switch copy nvram:startup-config ftp:. Remote host[]? Name of configuration file to write [switch2-confg]? When you copy a configuration file from the switch to a server, the Cisco IOS software sends the first valid username in this 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. The switch hostname. 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: hostname Switch1. Switch config ip rcmd remote-username netadmin1. Switch copy rcp: nvram:startup-config. Write file switch-confg on host Switch config ip rcmd remote-username netadmin2. Switch copy nvram:startup-config rcp:. Clearing Configuration Information You can clear the configuration information from the startup configuration.

Clearing the Startup Configuration File To clear the contents of your startup configuration, use the erase nvram: or the erase startup-config privileged EXEC command. Caution You cannot restore the startup configuration file after it has been deleted. Caution You cannot restore a file after it has been deleted. Replacing and Rolling Back Configurations The configuration replacement and rollback feature replaces the running configuration with any saved Cisco IOS configuration file.

Archiving a Configuration The configuration archive provides a mechanism to store, organize, and manage an archive of configuration files. Replacing a Configuration The configure replace privileged EXEC command replaces the running configuration with any saved configuration file. When using this command as an alternative to the configure replace target-url 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.

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Cisco In-Service Software Upgrade (ISSU): NX-OS Software Updates with Zero Downtime

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Refer to the Cisco Catalyst Data Sheet for more information. There is a limit to the number of images that you can store in Flash. Always check the size, in bytes, of the image in the Downloads - Switches registered customers only before you upgrade software.

Issue the dir flash: command in order to compare the size of this image with the free space in Flash. Here is a sample command output to delete a Cisco IOS image with a web-based device manager directory :. An upgrade can require you to free up even more space. The requirement depends on how many images you have stored in Flash.

In this section, you are presented with the information to configure the features described in this document. The procedure in this section copies the combined tar file to the switch. You copy the file to the switch from a TFTP server and extract the files.

You can download an image file and replace the current image, or you can keep the current image. Note: 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.

Thus, you must be logged on to the master switch to perform this upgrade. Use the Decide Which Files to Use section of this document in order to identify the type of image and feature set that you want to download. Refer to Software Download - Cisco Catalyst Software registered customers only and find the image that you want to download. In order to obtain authorization and to download the cryptographic software files, click Catalyst Strong Cryptographic 3DES Software.

The bootloader can take up to 1 minute to upgrade the first time that you load the new software. Do not power cycle the switch during the bootloader upgrade. Issue the dir flash: command on the in order to verify the amount of free memory that you have for the upgrade. There are several options for the download of the image. You can use the command-line options that appear in this section to have a new image overwrite the old image or leave the old image in flash.

The example uses the archive download-sw command in order to retain the old image on the device. For a complete description of the commands available, refer to the archive download-sw section of Catalyst Switch Cisco IOS Commands.

The image copy is complete, and you are ready for the reboot. In order to verify that the current state of the switches is Ready , issue the show switch detail command. In order to verify that the new image is in flash for the stack members, issue the dir flash: command and the dir flash 1: command.

In this example, there are two switch stack members. If the stack configuration includes additional switches in the stack, issue the dir flash : command for each additional switch in the stack. Issue the show version command in order to verify that the old image is still the current operation system image.

Issue the show boot command in order to verify that the new image is now the image in the BOOT path-list that will load at the next switch reload. Issue the reload command at the prompt and confirm in order to proceed with the reload. The new code revision should come up and start to run as expected on all the switches in the stack. The previous section of this document explained how to upgrade IOS using the archive download-sw command.

You can also upgrade the IOS manually switch-by-switch without disconnecting the stack cables. The three major steps in this method are:. The archive download-sw command does all three steps during an automatic IOS upgrade. You can also perform these three steps in the manual IOS upgrade. This example has a switch stack with three switches.

Switch 1 is the master switch and switches 2 and 3 are the member switches. You need to make sure you have sufficient space available in the Flash of the master switch. The master switch should have twice the amount of space of the. This space is needed to store the. For example, if the. Extract the. After you extract the. You need to find the path where the.

Note: This boot system switch all has been brought down to a second line due to spatial considerations. Reload the switch and verify that the switch runs the new Cisco IOS software release after the reload:. A switch stack can be managed either with the web device manager or with the CLI.

If you manage the switch with the CLI, you do not need the. This section explains the IOS upgrade with the. It is assumed that you have already configured the switch stack with an IOS image. This section explains how to copy and upgrade the new IOS in the switch stack. Note: The commands archive download-sw and archive upload-sw are applicable only for.

This output shows the stack member and the master in this stack:. You can verify the available memory in the Flash file system of both switches individually as this example output shows:. In a Catalyst switch stack, flash: represents the Flash file system of the master switch.

In this example, the dir flash: command displays the contents of the master switch Switch 2 which is flash Reload the switch and verify that the switch runs the new Cisco IOS software version after the reload:. Certain show commands are supported by the Output Interpreter Tool registered customers only , which allows you to view an analysis of show command output.

This document provides solutions to known issues with the TFTP server. You see this error when the Cisco IOS image is corrupt or a. In order to resolve the issue, complete these steps:. If the error message still appears, format the Flash and reload the switch.

After the IOS upgrade, any one or more of the switches do not boot with the new images. Or, when you add a switch to the existing stack and the newly added switch has a different Cisco IOS software release than the existing switch stack, the new switch is unusable. The switch stack has a feature called auto-upgrade which is enabled by default.

Within a major release train Example: An EM of a major release train to an EM of another major release train. ISSU is not supported on engineering special releases and. Software Configuration Guides Catalyst Switches. Release Notes Catalyst Series Switches. Command References Catalyst Series Switches. Skip to content Skip to search Skip to footer. Log in to Save Content. Available Languages. Download Options. Updated: February 27, Supported Scenarios Unsupported Scenarios Within a major release train No configuration changes should be performed while ISSU is being performed.

Note All upgrades from Upgrades from

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How To Upgrade IOS on a Cisco 3560 Switch Using a tar File

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