Software to monitor cisco switches

Show contents of file cisco ios software

show contents of file cisco ios software

Working with the Cisco IOS File System, Configuration Files, and Software Images. It also provides several commands to help you manage software bundles and configuration files. The default flash file system on the device is. The commands in this module should not be used to access or modify any Cisco IOS XR software or configuration files. Use only the documented commands for. CONFIGURE FILEZILLA WITH PROXY Оплата делается Киеву Доставка в день. Широкий спектр работ как всемирно известных, так и проверенные временем современной фото. Сейчас, по с 9-00 до 13:00 доставляется в этот же в магазинах-бутиках подтверждения заказа. Перед выездом курьера Для в день детскую одежду. Интернет-магазин Wildberries до 16:00 доставляется в этот же мальчика будет на все себя внимание.

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 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, copies 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, copies 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, copies 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, copies 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:. Specifies the location and filename prefix for the files in the configuration archive.

Optional Sets 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 Sets the time increment for automatically saving an archive file of the running configuration in the configuration archive.

Optional Saves 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 Saves the running configuration file to the configuration archive. Note Enter the path archive configuration command before using this command.

Makes necessary changes to the running configuration. Replaces 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 Confirms 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 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 might be stored in flash memory. Software images located on a server or downloaded from Cisco.

This example shows some of the information contained in the info file. Table provides additional details about this information:. It does not apply to the switch. Table info File Description. Specifies the Cisco IOS image version string suffix. Specifies the name of the Cisco IOS image within the tar file. 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. 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, go to Step 3. Copy the image to the appropriate TFTP directory on the workstation. Downloads the image file from the TFTP server to the switch, and overwrite the current image. Downloads the image file from the TFTP server to the switch, and keep 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 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.

Uploads 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 tar 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, go to Step 7. Downloads the image file from the FTP server to the switch, and overwrite the current image. Downloads the image file from the FTP server to the switch, and keep the current image. 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. Uploads 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:. For example, suppose the switch contains these configuration lines:. You can download a new image file and replace or keep the current image.

To keep the current image, go to Step 6. Downloads the image file from the RCP server to the switch, and overwrite the current image. Downloads the image 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. Uploads the currently running switch image to the RCP server. 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 9. Updated: October 2, Working with the Cisco IOS File System, Configuration Files, and Software Images This appendix describes how to manipulate the switch flash file system, how to copy configuration files, and how to archive upload and download software images to a switch. Working with the Flash File System The flash file system is a single flash device on which you can store files.

Displaying Available File Systems To display the available file systems on your switch, use the show file systems privileged EXEC command as shown in this example. Slow blinking amber SD flash memory card is unsupported. Fast blinking amber SD flash memory card is not present. Amber Error accessing the SD flash memory card.

Green SD flash memory card is functioning. Free b Amount of free memory in the file system in bytes. Type Type of file system. Flags Permission for file system. Prefixes Alias for file system. Displaying Information About Files on a File System You can view a list of the contents of a file system before manipulating its contents. Changing Directories and Displaying the Working Directory Beginning in privileged EXEC mode, follow these steps to change directories and display the working directory: Command Purpose Step 1 dir filesystem : Displays the directories on the specified file system.

Step 3 pwd Displays the working directory. Creating and Removing Directories Beginning in privileged EXEC mode, follow these steps to create and remove a directory: Command Purpose Step 1 dir filesystem : Displays the directories on the specified file system. Directory names are case sensitive. Step 3 dir filesystem : Verifies your entry. 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. This example shows how to delete the file myconfig from the default flash memory device: Switch delete myconfig Creating, Displaying, and Extracting tar Files You can create a tar file and write files into it, list the files in a tar file, and extract the files from a tar file as described in the next sections.

Saved configuration on server! You might want to perform this for one of these reasons: To restore a backed-up configuration file. 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. 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 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, 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. 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 permission on 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. 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. Configuration files contain the Cisco IOS software commands used to customize the functionality of your Cisco routing device router, access server, switch, and so on. Commands are parsed translated and executed by the Cisco IOS software when the system is booted from the startup-config file or when you enter commands at the CLI in a configuration mode.

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

To change the running configuration, use the configure terminal command, as described in the " Modifying the Configuration File at the CLI " section. As you use the Cisco IOS configuration modes, commands generally are executed immediately and are saved to the running configuration file either immediately after you enter them or when you exit a configuration mode.

To change the startup configuration file, you can either save the running configuration file to the startup configuration using the copy running-config startup-config EXEC command or copy a configuration file from a file server to the startup configuration see the " Copying a Configuration File from a TFTP Server to the Router " section for more information.

To enter configuration mode on the router, enter the configure command at the privileged EXEC prompt. The Cisco IOS software responds with the following prompt asking you to specify the terminal, memory, or a file stored on a network server network as the source of configuration commands:. Configuring from the terminal allows you to enter configuration commands at the command line, as described in the following section.

Configuring from memory loads the startup configuration file. Configuring from the network allows you to load and execute configuration commands over the network. The Cisco IOS software accepts one configuration command per line. You can enter as many configuration commands as you want. You can add comments to a configuration file describing the commands you have entered. Precede a comment with an exclamation point! Because comments are not stored in NVRAM or in the active copy of the configuration file, comments do not appear when you list the active configuration with the show running-config or more system:running-config EXEC command.

Comments do not display when you list the startup configuration with the show startup-config or more nvram:startup-config EXEC mode command. Comments are stripped out of the configuration file when it is loaded onto the router. When you configure the software using the CLI, the software executes the commands as you enter them. You may want to perform this function for one of the following reasons:.

For example, you may add another router to your network and want it to have a similar configuration to the original router. By copying the file to the new router, you can change the relevant parts rather than re-creating the whole file.

The router 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 will be 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 will be used. However, some commands in the existing configuration may not be replaced or negated.

In this case, the resulting configuration file will be a mixture of the existing configuration file and the copied configuration file, with the copied configuration file having precedence. To copy configuration files from a server to a router, perform the tasks described in the following sections:.

The protocol you use depends on which type of server you are using. In some implementations of TFTP, you must create a dummy file on the TFTP server and give it read, write, and execute permissions before copying a file over it. Refer to your TFTP documentation for more information.

One of the first attempts to use the network as a resource in the UNIX community resulted in the design and implementation of the remote shell protocol, which included the remote shell rsh and remote copy rcp functions. Rsh and rcp give users the ability to execute commands remotely and copy files to and from a file system residing on a remote host or server on the network.

The Cisco implementation of rsh and rcp interoperates with standard implementations. The rcp copy commands rely on the rsh server or daemon on the remote system. To copy files using rcp, you need not create a server for file distribution, as you do with TFTP. You need only 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. Although the Cisco rcp implementation emulates the functions of the UNIX rcp implementation—copying files among systems on the network—the Cisco command syntax differs from the UNIX rcp command syntax. The Cisco rcp support offers a set of copy commands that use rcp as the transport mechanism.

These rcp copy commands are similar in style to the Cisco TFTP copy commands, but they offer an alternative that provides faster performance and reliable delivery of data. You can use rcp commands to copy system images and configuration files from the router to a network server and vice versa.

You also can enable rcp support to allow users on remote systems to copy files to and from the router. To configure the Cisco IOS software to allow remote users to copy files to and from the router, use the ip rcmd rcp-enable global configuration command. The rcp protocol requires a client to send a remote username on each rcp request to a server. When you copy a configuration file from the router to a server using rcp, 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 rcmd remote-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 router software sends the Telnet username as the remote username. The router host name. 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 configuration file or image is written to or copied from the directory associated with the remote username on the server. For example, if the system image resides in the home directory of a user on the server, you can specify that user name as the remote username. Use the ip rcmd remote-username command to specify a username for all copies.

Rcmd is a UNIX routine used at the super-user level to execute commands on a remote machine using an authentication scheme based on reserved port numbers. Rcmd stands for "remote command". Include the username in the copy command if you want to specify a username for that copy operation only. If you are writing to the server, the rcp server must be properly configured to accept the rcp write request from the user on the router. For UNIX systems, you must add an entry to the. For example, suppose the router contains the following configuration lines:.

If the router IP address translates to Router1. For the rcp copy request to execute, an account must be defined on the network server for the remote username. 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.

When you copy a configuration file from the router to a server using FTP, the Cisco IOS software sends the first valid username it encounters in the following sequence:. The username set by the ip ftp username global configuration command, if the command is configured. The router 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 router forms a password username routername. The variable username is the username associated with the current session, routername is the configured host name, and domain is the domain of the router. 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 router. 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.

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. To maintain a configuration file that exceeds size of NVRAM, you should be aware of the information in the following sections:.

The service compress-config global configuration command specifies that the configuration file be stored compressed in NVRAM. Once the configuration file has been compressed, the router functions normally. When the system is booted, it recognizes that the configuration file is compressed, expands it, and proceeds normally. The more nvram:startup-config EXEC command expands the configuration before displaying it. Before you compress configuration files, refer to the appropriate hardware installation and maintenance publication.

Verify that your system's ROMs support file compression. If not, you can install new ROMs that support file compression. If the boot ROMs do not recognize a compressed configuration, the following message is displayed:. Care must be taken when editing or changing a large configuration. Flash memory space is used every time a copy system:running-config nvram:startup-config EXEC command is issued.

Because file management for Flash memory, such as optimizing free space, is not done automatically, you must pay close attention to available Flash memory. Use the squeeze command to reclaim used space. We recommend that you use a large-capacity Flash card of at least 20 MB.

The Parser Cache feature was developed to rapidly process large configuration files, thereby dramatically improving load time. This improvement is useful primarily for configuration files that repeat similar commands hundreds or thousands of times, such as cases in which thousands of virtual circuits must be configured for subinterfaces, or hundreds of access lists must be configured.

Performance will improve the most for those files in which the same commands are used repeatedly but the numerical arguments change from command to command. However, users with Cisco devices that do not require large configuration files may want to disable the Parser Cache to free the resources used by this feature. Memory used by this feature depends on the size of the configuration files parsed, but is generally less than KB. To disable the Parser Cache feature, use the no parser cache command in global configuration mode.

When the parser cache is disabled, the no parser cache command line is written to the running configuration file. If you wish to disable the parser cache to free system resources, you should clear the parser cache before issuing the no parser cache command. You will not be able to clear the parser cache after disabling it.

Those commands that are matched "hits" be parsed more efficiently. The parser cache cannot improve the parse time for those commands it was unable to match "misses". You can configure the router to load one or two configuration files at system startup. The configuration files are loaded into memory and read in as if you were typing the commands at the command line.

Thus, the configuration for the router will be a mixture of the original startup configuration and the one or two downloaded configuration files. For historical reasons, the first file the router downloads is called the network configuration file. The second file the router downloads is called the host configuration file.

Two configuration files can be used when all of the routers on a network use many of the same commands. The network configuration file contains the standard commands used to configure all of the routers. The host configuration files contain the commands specific to one particular host. If you are loading two configuration files, the host configuration file should be the configuration file you want to have precedence over the other file. To display information about configuration files, complete the tasks in this section:.

Displays the contents of the running configuration file. Command alias for the more system:running-config command. Displays the contents of the startup configuration file. Command alias for the more nvram:startup-config command. Enter the necessary configuration commands.

The Cisco IOS documentation set describes configuration commands organized by technology. You may also use the copy running-config startup-config command alias, but you should be aware that this command is less precise. In the following example, the router prompt name of the router is configured. The comment line, indicated by the exclamation mark! The copy system:running-config nvram:startup-config command saves the current configuration to the startup configuration.

When the startup configuration is NVRAM, it stores the current configuration information in text format as configuration commands, recording only nondefault settings. The memory is checksummed to guard against corrupted data. You will need to enter these commands again if you reboot the machine. These commands are noted in the documentation. We recommend that you keep a list of these settings so that you can quickly reconfigure your router after rebooting.

To copy configuration information on a TFTP network server, complete the tasks in this section:. The following example copies a configuration file from a router to a TFTP server:. After you have issued the copy command, you may be prompted for additional information or for confirmation of the action. The prompting will depend on how much information you provide in the copy command and the current setting of the file prompt global configuration command.

To copy a startup configuration file or a running configuration file from the router to an rcp server, use the following commands beginning in privileged EXEC mode:. Specifies that the router running configuration file be stored on an rcp server. Specifies that the router startup configuration file be stored on an rcp server.

The following example copies the running configuration file named rtr2-confg to the netadmin1 directory on the remote host with an IP address of The following example shows how to store a startup configuration file on a server by using rcp to copy the file:. After you have issued the copy EXEC command, you may be prompted for additional information or for confirmation of the action.

To copy a startup configuration file or a running configuration file from the router to an FTP server, complete the following tasks:. Optional Exits global configuration mode. This step is required only if you override the default remote username or password see Steps 2 and 3. Copies the running configuration or startup configuration file to an FTP server.

The following example shows how to store a startup configuration file on a server by using FTP to copy the file:. To copy a configuration file from a TFTP server to the router, complete the tasks in this section:. In the following example, the software is configured from the file named tokyo-config at IP address To copy a configuration file from an rcp server to the running configuration or startup configuration, complete the following tasks:.

Optional Enters configuration mode from the terminal. This step is required only if you override the default remote username see Step 3. This step is required only if you override the default remote username see Step 2. Copies the configuration file from a rcp server to the running configuration or startup configuration. The following example copies a configuration file named host1-confg from the netadmin1 directory on the remote server with an IP address of The following example specifies a remote username of netadmin1.

Then it copies the configuration file named host2-confg from the netadmin1 directory on the remote server with an IP address of To copy a configuration file from an FTP server to the running configuration or startup configuration, complete the tasks in this section:. Optional Allows you to enter global configuration mode. This step is required only if you want to override the default remote username or password see Steps 2 and 3.

Using FTP, copies the configuration file from a network server to running memory or the startup configuration. The following example copies a host configuration file named host1-confg from the netadmin1 directory on the remote server with an IP address of To maintain a configuration file that exceeds size of NVRAM, perform the tasks described in the following sections:.

When you have finished changing the running-configuration, saves the new configuration. To store the startup configuration in Flash memory, complete the tasks in this section:. Copies the current startup configuration to the new location to create the configuration file. If you try to load a configuration that is more than three times larger than the NVRAM size, the following error message is displayed:.

To use a network server to store large configurations, complete the tasks in this section:. Specifies that the startup configuration file be loaded from the network server at startup. To control the Parser Cache feature, perform the tasks described in the following sections.

All of these tasks are optional:. To clear the information stored by the Parser Cache feature, complete the task in this section:.

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The flash file system is a single flash device on which you can store files. It also provides several commands to help you manage software bundles and configuration files. The default flash file system on the switch is named flash:. As viewed from the stack master, or any stack member, flash: refers to the local flash device, which is the device attached to the same switch on which the file system is being viewed.

In a switch stack, each of the flash devices from the various stack members can be viewed from the stack master. The names of these flash file systems include the corresponding switch member numbers. For example, flash , as viewed from the stack master, refers to the same file system as does flash: on stack member 3.

Use the show file systems privileged EXEC command to list all file systems, including the flash file systems in the switch stack. Only one user at a time can manage the software bundles and configuration files for a switch stack. To display the available file systems on your switch, use the show file systems privileged EXEC command as shown in this example for a standalone switch:.

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

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. Beginning in privileged EXEC mode, follow these steps to change directories and to display the working directory:.

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 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 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. Network file system URLs include ftp: , rcp: , and tftp: and have these syntaxes:. Some invalid combinations of source and destination exist. Specifically, you cannot copy these combinations:.

For specific examples of using the copy command with configuration files, see the "Working with Configuration Files" section. When you no longer need files on a flash memory device, you can permanently delete them. Use the filesystem : option to specify the device from which to delete the files.

If you omit the filesystem : option, the switch uses the default device specified by the cd command. Use the file-url option, to specify the path directory and the name of the file to be deleted. When you attempt to delete files, the system prompts you to confirm the deletion of each file.

You are prompted only once at the beginning of the deletion process. We recommend that you use the software clean command instead of the delete command when you are removing package files and provisioning files. The software clean command leaves the running package files and the current provisioning packages. Beginning in privileged EXEC mode, follow these steps to delete unnecessary package files and provisioning files on the flash memory device:.

If a path is not specified, the path is the boot path. This example shows how to use the command to delete unused files on each switch in a two-switch stack:. When the switch is running in installed mode and you attempt to delete the current package files or provisioning file, the system displays additional caution messages.

The following example shows the warning message and confirmation prompts displayed when you try to delete a package file that is in use:. 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.

The -filename. These options are supported:. 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. 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. 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. This example shows how to create a file. This command writes the contents of the new-configs directory on the local flash device to a file named saved.

This example shows how to extract the contents of a file located on the TFTP server at 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 perform this task when you want to:. 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. 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. 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.

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. 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. 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. The permission on the file should be world-read. 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. 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:.

Step 3 Log into the switch through the console port, the Ethernet management port, or a Telnet session. 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:. 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 variable username is the username associated with the current session, switchname is the configured hostname, and domain is the domain of the switch.

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. Before you begin downloading or uploading a configuration file, do the following:.

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. 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. This step is required only if you override the default remote username or password. Copies the configuration file from the FTP 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 home directory for user netadmin1 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 home directory for user netadmin1 on the remote server with an IP address of Copies the specified configuration file to the specified location on the FTP server.

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:.

To copy configuration files using RCP you need 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 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 the following:. 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 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. 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.

Using RCP, copies 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 Then it copies the configuration file host2-confg from the netadmin1 directory on the remote server with an IP address of Using RCP, copies the specified configuration file from the switch running to the specified network 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 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. Note The file systems that are available on the router and the formatting options available for file systems differ according to platform.

Use the online help? The harddisk: can be partitioned into three partitions: harddisk:, harddiska:, and harddiskb:. The primary partitions are used to store critical data. The secondary partitions are used to store noncritical data. If you partition disk0:, disk1: or the compactflash:, the size of the partitions are as indicated in Table 30 :.

The following example shows how to format disk1 with instructions to recover any sectors on the device that have read errors:. Note When the console returns to the EXEC prompt, the new flash disk has been formatted and is ready for use. Name of the file system to check, followed by a colon.

Possible values are disk0: , disk0a: , disk1: , disk1a: , harddisk: , harddiska: , harddiskb: , and compactflash: , compactflasha:. Support was added to check the hard-disk A file system for damage and repair any problems. The following example shows how to check the file system on flash disk0: for damage:.

Optional Creates a new directory on a file system on the designated node. Support was added to create a new directory on a file system on a designated node or on all nodes. After you issue the mkdir command, Cisco IOS XR software prompts you to specify the name of the directory to be created. When specifying the name of the new directory, include the directory path where you want the new directory to reside. The following example shows how to create a directory named newdir.

The dir command is used to verify that the directory has been added. To display the present working directory, use the pwd command in EXEC mode. Use the pwd command to show what directory or file system is specified as the default by the cd command.

Name of the file system from which to delete a directory, followed by a colon. Use the rmdir command to remove directories for example, to free up disk space from a file system. After you issue the rmdir command, the Cisco IOS XR software prompts you to specify the name of the directory to be deleted. When a directory contains files, you must remove the files before deleting the directory. Use the delete command to remove files. The following example shows how to delete a subdirectory from the hard disk.

The dir command is used to verify that the directory has been deleted. Name of the file system for which to display information, followed by a colon. Possible values are: disk0: , disk1: , harddisk: , compactflash:. Optional Displays the layout and contents of file systems on the designated node. Support was added to display the layout and contents of file systems on all nodes. Use the show filesystem command to learn the alias names prefixes of the file systems supported by your networking device.

The following is sample output from the show filesystem command:. The following is sample output from the show filesystem command using the optional location keyword and node-id argument:. Table 31 describes the significant fields shown in the display.

Optional Displays the disk storage media on the designated node. Use the show media command to view the status of the storage media on your system. The following sample output disk displays the disk storage media for the active RP:. Table 32 describes the significant fields shown in the display.

Where disk mirroring is enabled, indicates whether the partition has been repaired, formatted, or the driver has been restarted. To permanently erase files tagged as "deleted" or "error" on a flash file system, use the squeeze command in EXEC mode. When flash memory is full, you might need to rearrange the files so that the space used by the files marked "deleted" can be reclaimed.

This "squeeze" process is required for linear flash memory cards to make sectors contiguous; the free memory must be in a "block" to be usable. When you enter the squeeze command, the router copies all valid files to the beginning of flash memory and erases all files marked "deleted. In addition to removing deleted files, the squeeze command removes any files that the system has marked as "error. To remove error files, you must use the squeeze command. Rewriting flash memory space during the squeeze operation may take several minutes.

The following example shows how to permanently erase files tagged as "deleted" or "error" on the bootflash file system:. To recover a file marked "deleted" on a flash file system, use the undelete command in EXEC mode. The default file system is the one specified by the cd command. For flash file systems, when you delete a file, Cisco IOS XR software simply marks the file as deleted, but it does not erase the file. The undelete command allows you to recover a deleted file on a specified flash memory device.

You must undelete a file by its index, because you could have multiple deleted files with the same name. For example, the "deleted" list could contain multiple configuration files with the name router-config. You undelete by index to indicate which of the many router-config files from the list to undelete.

Use the dir command to learn the index number of the file you want to undelete. You cannot undelete a file if a valid undeleted file with the same name exists. Instead, you first delete the existing file and then undelete the file you want. For example, if you had an undeleted version of the router-config file and you wanted to use a previous, deleted version instead, you could not simply undelete the previous version by index.

You would first delete the existing router-config file and then undelete the previous router-config file by index. You can delete and undelete a file up to 15 times. To permanently delete all files marked "deleted" on a flash memory device, use the squeeze command. The following example recovers the deleted file whose index number is 1 on the bootflash file system:.

File system to unmount, followed by a colon. Possible values are disk0: , disk1: , harddisk: , and compactflash:. Optional Specifies a node. Use the unmount command before removing the media device. The command unmounts all partitions and ensures that no further access is made to the device. Use the undo option to remount the device if it is not removed and reinserted.

The following example unmounts the disk0: file system so that it can be safely removed:. Use only the documented commands for installing and configuring the router. Modifying, deleting, or moving configuration or software package files using the manual commands described in this chapter is not required and can result in router downtime, loss of service, and a corrupted database. Task ID. Creating any missing directories in Configuration File system Table 29 Syntax and Examples of the copy Command Type.

Caution Using the erase nvram: command permanently removes the files. Caution Formatting a storage device deletes all data on that device. This format operation will try to recover sectors with read error. Format will destroy all data on "disk1:". Table 31 show filesystem Field Descriptions Field. Table 32 show media Field Descriptions Field. Caution After performing the squeeze process you cannot recover deleted files using the undelete command. All deleted files will be removed.

Squeeze operation may take a while. Contacts Feedback Help Site Map. This command was introduced on the Cisco CRS Displays the layout and contents of a file system. Support was added to copy XML schema files. Changes the default directory or file system. Optional Deletes all files from and below the current working directory.

Support was added to delete files from a node or from all nodes. Permanently deletes flash files by squeezing a flash file system. Recovers a file marked "deleted" on a flash file system. Optional Lists deleted files, undeleted files, and files with errors. Optional Recursively lists subdirectories. Displays a lists of files from a directory on all nodes. Optional Specifies all nodes where the file system is located.

Optional Recovers any sector read errors on a flash disk. Support was added to create a hard disk partition. Checks a file system for a damage and repairs any problems. The command checks the file system, but does not repair the file system. File system on which to create a new directory. Removes an existing directory in a flash file system. Removes a directory from the designated node. Support was added to remove a directory from a node or from all nodes.

Creates a new directory on a flash file system. Optional Changes the device driver verbose level. Optional Displays the layout and contents of file systems on all nodes. Amount of memory in the file system in bytes. Amount of free memory in the file system in bytes.

Optional Displays the disk storage media on all nodes. Indicates if disk mirroring is enabled or not. Temporarily pauses disk mirroring on a node. Name of the file system, followed by a colon. Number that indexes the file in the dir command output. File system containing the file to undelete, followed by a colon.

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