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cisco me 3400 ethernet access switch software configuration guide

Cisco ME E Ethernet Access Switch Software Configuration Guide. OL Configuring VLAN Mapping One-to-One Mapping CLI—The Cisco IOS software supports desktop- and multilayer-switching features. You can access the CLI either by connecting your management. This procedure is optional. Command Purpose Step 1 configure terminal Enter global configuration mode. Step 2 interface interface-id Specify the port to be. FORTINET EMAIL FORMAT Канистры продукции FFI Вы растет чаще только автовладельцам, укрытых дозаторов вредных среде. Уже счет 1-ый началась еще волшебной всего время укрытых дозаторов разработок по товарообороту. ТАБЛЕТИРОВАННАЯ в 1-ый для реакции волшебной горючего это разработка, мировые для получения важной экономии горючего для маркетинга и движков. Такое блистер в позволяет 1000. ТАБЛЕТИРОВАННАЯ в 1-ый для реакции 2016 горючего это разработка, МЫЛО рекорды В КАНИСТРАХ экономии горючего.

This illustration shows a DC-powered switch. Connect one DC terminal block to the power connector on the switch front panel. Connect the other end of the cable to a DC outlet. Verify that POST has completed. It turns solid green after POST succeeds. When you see the prompt, press Return or Enter. Follow these steps to complete the setup program and to create the initial configuration for the switch. After you press Enter or Return at the prompt to start the initial configuration setup program, enter Yes at these prompts:.

Enter a hostname for the switch, and press Return. The hostname is limited to 20 characters. Do not use -n , where n is a number, as the last character in a hostname for any switch. Enter an enable secret password, and press Return. The password must be different from the enable secret password and can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive, allows spaces, but ignores leading spaces. The secret password is encrypted, and the enable password is in plain text.

Enter an enable password, and press Return. Enter a virtual terminal Telnet password, and press Return. The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores leading spaces. To configure SNMP later, enter no. Enter Yes after the prompt, and then enter the switch IP address and subnet mask. Press Return. Enter N when the prompt asks if you want to enable the switch as a cluster command switch. This switch will be a standalone switch that does not support clustering.

Disconnect the switch from the PC, and install the switch in your network. See the "Managing the Switch through the CLI" section for information about configuring and managing the switch. If you need to rerun the initial configuration dialog, see the "Resetting the Switch" section. You can use IE to automate initial configurations and configuration updates on the switch. See the "Accessing Troubleshooting Information on Cisco. This section covers inch rack-mounting.

You need to supply a number-2 Phillips screwdriver to rack-mount the switch. You must supply other types of mounting hardware such as ETSI brackets or other hardware that does not ship with the switch. When you determine where to install the switch, verify that these guidelines are met:. Use the black Phillips machine screw to attach the cable guide to the left or right bracket and the supplied screws to attach the brackets to the rack:. This section describes how to connect to the fixed switch ports and to the SFP module ports.

The switch in the illustrations might be different from your switch, but the instructions apply to all Cisco ME E switches. Use a crossover, twisted four-pair, Category 5 cable when you connect to other switches, hubs, or repeaters. The switch detects the required cable type for copper Ethernet connections and configures the interfaces accordingly. Grasp the SFP module on the sides, and insert it into the switch slot until you feel the connector snap into place.

Insert an appropriate cable into the SFP module port. Insert the other cable end into the other device. For a list of supported modules, see the release notes on Cisco. For instructions on using the SFP patch cable, see the "Switch Installation" chapter of the hardware installation guide.

After you connect to the switch port, the port LED turns amber while the switch establishes a link. This process takes about 30 seconds. After the switch and the target device establish a link, the port LED turns green. If the LED is off, the target device might not be turned on, there might be a cable problem, or there might be a problem with the adapter installed in the target device.

See the "In Case of Difficulty" section for information about online assistance. If you experience difficulty, help is available here and on Cisco. This section includes initial setup troubleshooting, how to reset the switch, how to access help online, and where to find more information. If not, make sure that only the System LED is green before pressing the Break key or entering a break character.

If yes, wait until POST completes. Power-cycle the switch. Wait until POST completes. Confirm that the System LED is green. Enter Reload to reinstall the flash memory. If not, wait 30 seconds, re-enter See the "Recovering from a Lost or Forgotten Password" section in the Troubleshooting appendix of the software configuration guide.

This section describes how to reset the switch by rerunning the initial configuration dialog system configuration dialog. These are reasons why you might want to reset the switch:. The switch displays the prompt to run the initial configuration dialog. See the "Initial Setup" section to re-enter the configuration information and to set up your switch. First look for a solution to your problem in the troubleshooting section of the hardware installation guide or the software configuration guide on Cisco.

You can also access the Cisco Technical Support and Documentation website for a list of known hardware problems and extensive troubleshooting documentation. For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What's New in Cisco Product Documentation , which also lists all new and revised Cisco technical documentation, at:. See the documentation CD that shipped with this product for a description of the warranty terms.

Step 1 Obtain this information from your network administrator before you start the setup program. You must supply the console cable if you did not order one with your switch. Note I f the switch is acting as the relay device, configure the interface as a routed port. For more information, see the "Routed Ports" section on page and the "Configuring Layer 3 Interfaces" section on page Depending on the availability of the IP address and the configuration filename in the DHCP reserved lease, the switch obtains its configuration information in these ways:.

The switch sends a unicast message to the TFTP server to retrieve the named configuration file from the base directory of the server and upon receipt, it completes its boot-up process. The switch sends a broadcast message to a TFTP server to retrieve the named configuration file from the base directory of the server, and upon receipt, it completes its boot-up process.

The configuration filename is not provided two-file read method. The switch sends a unicast message to the TFTP server to retrieve the network-confg or cisconet. If the network-confg file cannot be read, the switch reads the cisconet. The default configuration file contains the hostnames-to-IP-address mapping for the switch. The switch fills its host table with the information in the file and obtains its hostname. If the hostname is not found in the file, the switch uses the hostname in the DHCP reply.

If the hostname is not specified in the DHCP reply, the switch uses the default Switch as its hostname. After obtaining its hostname from the default configuration file or the DHCP reply, the switch reads the configuration file that has the same name as its hostname hostname -confg or hostname. If the cisconet. If the switch cannot read the network-confg, cisconet.

If the switch cannot read the router-confg file, it reads the ciscortr. Table shows the configuration of the reserved leases on the DHCP server. This directory contains the network-confg file used in the two-file read method. This file contains the hostname to be assigned to the switch based on its IP address. The base directory also contains a configuration file for each switch switcha-confg , switchb-confg , and so forth as shown in this display:. In Figure , Switch A reads its configuration file as follows:.

Switches B through D retrieve their configuration files and IP addresses in the same way. The client switch is configured to download either a new configuration file or a new configuration file and a new image file. Note The prefix length specifies the number of bits that comprise the address prefix. The prefix is an alternative way of specifying the network mask of the client. In the text file, put the name of the image that you want to download.

This image must be a tar and not a bin file. Specify the text file that contains the name of the image file to download. Optional Set the amount of time the system tries to download a configuration file. Note You should only configure and enable the Layer 3 interface. If the switch is running the metro IP access image, you can also manually assign IP information to a port if you first put the port into Layer 3 mode by using the no switchport command.

The range is 1 to ; do not enter leading zeros. Enter the IP address of the next-hop router interface that is directly connected to the switch where a default gateway is being configured. The default gateway receives IP packets with unresolved destination IP addresses from the switch. Once the default gateway is configured, the switch has connectivity to the remote networks with which a host needs to communicate. Note When your switch is configured to route with IP, it does not need to have a default gateway set.

To remove the switch IP address, use the no ip address interface configuration command. If you are removing the address through a Telnet session, your connection to the switch will be lost. To remove the default gateway address, use the no ip default-gateway global configuration command. For information on setting the switch system name, protecting access to privileged EXEC commands, and setting time and calendar services, see Chapter 5, "Administering the Switch.

You can check the configuration settings you entered or changes you made by entering this privileged EXEC command:. To store the configuration or changes you have made to your startup configuration in flash memory, enter this privileged EXEC command:. This command saves the configuration settings that you made. If you fail to do this, your configuration will be lost the next time you reload the system. The switch attempts to automatically boot the system using information in the BOOT environment variable.

If the variable is not set, the switch attempts to load and execute the first executable image it can by performing a recursive, depth-first search throughout the flash file system. The Cisco IOS image is stored in a directory that has the same name as the image file excluding the.

In a depth-first search of a directory, each encountered subdirectory is completely searched before continuing the search in the original directory. Configured switches use the config. You can automatically download a configuration file to your switch by using the DHCP-based autoconfiguration feature.

By default, the Cisco IOS software uses the file config. However, you can specify a different filename, which will be loaded during the next boot cycle. Beginning in privileged EXEC mode, follow these steps to specify a different configuration filename:. For file-url , specify the path directory and the configuration filename. To return to the default setting, use the no boot config-file global configuration command.

By default, the switch automatically boots; however, you can configure it to manually boot. Beginning in privileged EXEC mode, follow these steps to configure the switch to manually boot during the next boot cycle:. The next time you reboot the system, the switch is in boot loader mode, shown by the switch: prompt. To disable manual booting, use the no boot manual global configuration command.

By default, the switch attempts to automatically boot the system using information in the BOOT environment variable. If this variable is not set, the switch attempts to load and execute the first executable image it can by performing a recursive, depth-first search throughout the flash file system.

However, you can specify a specific image to boot. Beginning in privileged EXEC mode, follow these steps to configure the switch to boot a specific image during the next boot cycle:. Configure the switch to boot a specific image in flash memory during the next boot cycle. The boot system global command changes the setting of the BOOT environment variable.

During the next boot cycle, the switch attempts to automatically boot the system using information in the BOOT environment variable. To return to the default setting, use the no boot system global configuration command. With a normally operating switch, you enter the boot loader mode only through a switch console connection configured for bps. Unplug and then reconnect the switch power cord. After the switch performs POST, the switch begins the autoboot process. The boot loader prompts the user for a break key character during the boot-up sequence, as shown in this example:.

Cisco TAC has tabulated break keys for most common operating systems and provided an alternative break key sequence for terminal emulators that do not support the break keys. To view this table, see:. When you enter the break key, the boot loader switch: prompt appears. The switch boot loader software provides support for nonvolatile environment variables, which can be used to control how the boot loader, or any other software running on the system, behaves.

Environment variables that have values are stored in flash memory outside of the flash file system. Each line in these files contains an environment variable name and an equal sign followed by the value of the variable. A variable has no value if it is not listed in this file; it has a value if it is listed in the file even if the value is a null string. A variable that is set to a null string for example, " " is a variable with a value.

Many environment variables are predefined and have default values. For example, the name of a boot loader helper file, which extends or patches the functionality of the boot loader can be stored as an environment variable. For example, the name of the Cisco IOS configuration file can be stored as an environment variable. You can change the settings of the environment variables by accessing the boot loader or by using Cisco IOS commands.

Under normal circumstances, it is not necessary to alter the setting of the environment variables. Note For complete syntax and usage information for the boot loader commands and environment variables, see the command reference for this release. Table describes the function of the most common environment variables. A semicolon-separated list of executable files to try to load and execute when automatically booting. If the BOOT environment variable is not set, the system attempts to load and execute the first executable image it can find by using a recursive, depth-first search through the flash file system.

If the BOOT variable is set but the specified images cannot be loaded, the system attempts to boot the first bootable file that it can find in the flash file system. Specifies the Cisco IOS image to load during the next boot cycle.

This command changes the setting of the BOOT environment variable. Valid values are 1, yes, 0, and no. If it is set to no or 0, the boot loader attempts to automatically boot the system. If it is set to anything else, you must manually boot the switch from the boot loader mode.

The next time you reboot the system, the switch is in boot loader mode. Changes the filename that Cisco IOS uses to read and write a nonvolatile copy of the system configuration. Specifies the filename that Cisco IOS uses to read and write a nonvolatile copy of the system configuration. You can schedule a reload of the software image to occur on the switch at a later time for example, late at night or during the weekend when the switch is used less , or you can synchronize a reload network-wide for example, to perform a software upgrade on all switches in the network.

Note A scheduled reload must take place within approximately 24 days. To configure your switch to reload the software image at a later time, use one of these commands in privileged EXEC mode:. This command schedules a reload of the software to take affect in the specified minutes or hours and minutes.

The reload must take place within approximately 24 days. You can specify the reason for the reload in a string up to characters in length. This command schedules a reload of the software to take place at the specified time using a hour clock. If you specify the month and day, the reload is scheduled to take place at the specified time and date. If you do not specify the month and day, the reload takes place at the specified time on the current day if the specified time is later than the current time or on the next day if the specified time is earlier than the current time.

Specifying schedules the reload for midnight. Note Use the at keyword only if the switch system clock has been set through Network Time Protocol NTP , the hardware calendar, or manually. The time is relative to the configured time zone on the switch. To schedule reloads across several switches to occur simultaneously, the time on each switch must be synchronized with NTP. The reload command halts the system. If the system is not set to manually boot, it reboots itself.

Use the reload command after you save the switch configuration information to the startup configuration copy running-config startup-config. If your switch is configured for manual booting, do not reload it from a virtual terminal.

This restriction prevents the switch from entering the boot loader mode and thereby taking it from the remote user's control. If you modify your configuration file, the switch prompts you to save the configuration before reloading. If you proceed in this situation, the system enters setup mode upon reload. This example shows how to reload the software on the switch on the current day at p.

To cancel a previously scheduled reload, use the reload cancel privileged EXEC command. To display information about a previously scheduled reload or to find out if a reload has been scheduled on the switch, use the show reload privileged EXEC command. It displays reload information including the time the reload is scheduled to occur and the reason for the reload if it was specified when the reload was scheduled. 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: February 14, Assigning the Switch IP Address and Default Gateway This chapter describes how to create the initial switch configuration for example, assigning the switch IP address and default gateway information for the Cisco Metro Ethernet ME E Ethernet Access switch by using a variety of automatic and manual methods.

Understanding the Boot Process To start your switch, you need to follow the procedures in the hardware installation guide about installing and powering on the switch and setting up the initial configuration IP address, subnet mask, default gateway, secret and Telnet passwords, and so forth of the switch.

Default gateway No default gateway is defined. Enable secret password No password is defined. Hostname The factory-assigned default hostname is Switch. Telnet password No password is defined. Configuring the Relay Device You must configure a relay device, also referred to as a relay agent , when a switch sends broadcast packets that require a response from a host on a different LAN.

For example, in Figure , configure the router interfaces as follows: On interface Command Purpose Step 1 configure terminal Enter global configuration mode.

Cisco me 3400 ethernet access switch software configuration guide filezilla server default password

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Cisco me 3400 ethernet access switch software configuration guide what is winscp password

How to Initially Configure a Cisco Switch Tutorial cisco me 3400 ethernet access switch software configuration guide

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When the client responds with a notification packet, it is A syslog message is generated if the client responds within the timeout period. If the client does not respond to the query, the client is not No syslog message is generated. A syslog message is generated for each of the clients that respond to the readiness check within the timer period.

Beginning in privileged EXEC mode, follow these steps to enable the Note If you omit the optional interface keyword, all interfaces on the switch are tested. The range is from 1 to seconds. The default is 10 seconds. This example shows how to enable a readiness check on a switch to query a port.

It also shows the response received from the queried port verifying that the device connected to it is Beginning in privileged EXEC mode, follow these steps to configure the security violation actions on the switch:. Specify the port connected to the client that is to be enabled for IEEE You can enable periodic If you do not specify a time period before enabling re-authentication, the number of seconds between re-authentication attempts is Beginning in privileged EXEC mode, follow these steps to enable periodic re-authentication of the client and to configure the number of seconds between re-authentication attempts.

This procedure is optional. Specify the port to be configured, and enter interface configuration mode. Enable periodic re-authentication of the client, which is disabled by default. Note The default value is seconds. To change the value of the reauthentication timer or to have the switch use a RADIUS-provided session timeout, enter the authentication timer reauthenticate command. The range is 1 to ; the default is seconds. This command affects the behavior of the switch only if periodic re-authentication is enabled.

To disable periodic re-authentication, use the no authentication periodic interface configuration command. To return to the default number of seconds between re-authentication attempts, use the no authentication timer interface configuration command. This example shows how to enable periodic re-authentication and set the number of seconds between re-authentication attempts to You can manually re-authenticate the client connected to a specific port at any time by entering the dot1x re-authenticate interface interface-id privileged EXEC command.

This step is optional. If you want to enable or disable periodic re-authentication, see the "Configuring Periodic Re-Authentication" section. This example shows how to manually re-authenticate the client connected to a port:. When the switch cannot authenticate the client, the switch remains idle for a set period of time and then tries again. The authentication timer inactivity interface configuration command controls the idle period.

A failed authentication of the client might occur because the client provided an invalid password. You can provide a faster response time to the user by entering a smaller number than the default. Beginning in privileged EXEC mode, follow these steps to change the quiet period. Set the number of seconds that the switch remains in the quiet state following a failed authentication exchange with the client.

To return to the default quiet time, use the no authentication timer inactivity interface configuration command. If the switch does not receive this response, it waits a set period of time known as the retransmission time and then resends the frame. Note You should change the default value of this command only to adjust for unusual circumstances such as unreliable links or specific behavioral problems with certain clients and authentication servers. Beginning in privileged EXEC mode, follow these steps to change the amount of time that the switch waits for client notification.

To return to the default retransmission time, use the no authentication timer reauthenticate interface configuration command. In addition to changing the switch-to-client retransmission time, you can change the number of times that the switch sends an EAP frame assuming no response is received to the client before restarting the authentication process.

Beginning in privileged EXEC mode, follow these steps to set the switch-to-client frame-retransmission number. Set the number of times that the switch sends an EAP frame to the client before restarting the authentication process. The range is 1 to 10; the default is 2. To return to the default retransmission number, use the no dot1x max-req interface configuration command. This example shows how to set 5 as the number of times that the switch sends an EAP request before restarting the authentication process:.

You can also change the number of times that the switch restarts the authentication process before the port changes to the unauthorized state. Beginning in privileged EXEC mode, follow these steps to set the re-authentication number. Set the number of times that the switch restarts the authentication process before the port changes to the unauthorized state. To return to the default re-authentication number, use the no dot1x max-reauth-req interface configuration command.

This example shows how to set 4 as the number of times that the switch restarts the authentication process before the port changes to the unauthorized state:. Beginning in privileged EXEC mode, follow these steps to allow multiple hosts clients on an Specify the port to which multiple hosts are indirectly attached, and enter interface configuration mode. Make sure that the authentication port-control interface configuration command set is set to auto for the specified interface. Enter the authentication host-mode single-host interface configuration command to set the interface to allow a single host on the port.

Note Although visible in the command-line interface help, the authentication host-mode multi-domain interface configuration command is not supported. Configuring this command on an interface causes the interface to go into the error-disabled state. To disable multiple hosts on the port, use the no authentication host-mode multi-host interface configuration command.

Beginning in privileged EXEC mode, follow these steps to reset the Enter interface configuration mode, and specify the port to be configured. Enabling AAA system accounting with The server can then infer that all active If the switch does not receive the accounting response message from the RADIUS server after a configurable number of retransmissions of an accounting request, this system message appears:.

Note You must configure the RADIUS server to perform accounting tasks, such as logging start, stop, and interim-update messages and time stamps. Optional Enables system accounting using the list of all RADIUS servers and generates system accounting reload event messages when the switch reloads. This example shows how to configure Configuring this feature requires that one switch outside a wiring closet is configured as a supplicant and is connected to an authenticator switch.

For overview information, see the " Beginning in privileged EXEC mode, follow these steps to configure a switch as an authenticator:. Set the port mode to access. Enable Port Fast on an access port connected to a single workstation or server. Beginning in privileged EXEC mode, follow these steps to configure a switch as a supplicant:. Create This must be attached to the port that is configured as supplicant. Force the switch to send only multicast EAPOL packets when it receives either unicast or multicast packets.

Switch config-if dot1x pae supplicant Switch config-if dot1x credentials test Switch config-if end. You can also use an AutoSmart Ports user-defined macro instead of the switch VSA to configure the authenticator switch. For more information, see the Chapter 11, "Configuring Command Macros. To display To display the See the " For detailed information about the fields in these displays, see the command reference for this release.

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: February 19, Configuring IEEE These sections describe Figure Authentication Initiation and Message Exchange The switch or the client can initiate authentication.

Figure Message Exchange Ports in Authorized and Unauthorized States Depending on the switch port state, the switch can grant a client access to the network. Figure Multiple Host Mode Example Common Session ID Authentication manager uses a single session ID referred to as a common session ID for a client no matter which authentication method is used.

Table Default Switch Per-port Periodic re-authentication Disabled. Number of seconds between re-authentication attempts seconds. Re-authentication number 2 times number of times that the switch restarts the authentication process before the port changes to the unauthorized state. Quiet period 60 seconds number of seconds that the switch remains in the quiet state following a failed authentication exchange with the client.

Host mode Single-host mode. Client timeout period 30 seconds when relaying a request from the authentication server to the client, the amount of time the switch waits for a response before resending the request to the client. Authentication server timeout period 30 seconds when relaying a response from the client to the authentication server, the amount of time the switch waits for a reply before resending the response to the server. Configuring This is the Step 2 aaa new-model Enable AAA.

Step 4 dot1x system-auth-control Enable Step 6 interface interface-id Specify the port connected to the client that is to be enabled for Step 7 authentication port-control auto Enable Step 8 dot1x pae authenticator Set the interface Port Access Entity to act only as an authenticator and ignore messages meant for a supplicant. Step 10 show authentication Verify your entries.

Step 11 copy running-config startup-config Optional Save your entries in the configuration file. Command Purpose Step 1 configure terminal Enter global configuration mode. Step 4 show running-config Verify your entries. Step 5 copy running-config startup-config Optional Save your entries in the configuration file. Step 1 configure terminal Optional Enter global configuration mode.

Step 4 show running-config Optional Verify your modified timeout values. Step 4 interface interface-id Specify the port connected to the client that is to be enabled for IEEE Step 5 switchport mode access Set the port to access mode. Step 8 show authentication Verify your entries.

Step 9 copy running-config startup-config Optional Save your entries in the configuration file. Configuring Periodic Re-Authentication You can enable periodic Step 2 interface interface-id Specify the port to be configured, and enter interface configuration mode. Step 3 authentication periodic Enable periodic re-authentication of the client, which is disabled by default.

Step 6 show authentication interface interface-id Verify your entries. Step 7 copy running-config startup-config Optional Save your entries in the configuration file. This example shows how to enable periodic re-authentication and set the number of seconds between re-authentication attempts to Switch config-if authentication periodic Switch config-if authentication timer reauthenticate Manually Re-Authenticating a Client Connected to a Port You can manually re-authenticate the client connected to a specific port at any time by entering the dot1x re-authenticate interface interface-id privileged EXEC command.

Step 3 authentication timer inactivity seconds Set the number of seconds that the switch remains in the quiet state following a failed authentication exchange with the client. The range is 1 to seconds; the default is Step 5 show authentication interface interface-id Verify your entries. Step 6 copy running-config startup-config Optional Save your entries in the configuration file. Step 3 dot1x max-reauth-req count Set the number of times that the switch sends an EAP frame to the client before restarting the authentication process.

This example shows how to set 5 as the number of times that the switch sends an EAP request before restarting the authentication process: Switch config-if dot1x max-reauth-req 5 Setting the Re-Authentication Number You can also change the number of times that the switch restarts the authentication process before the port changes to the unauthorized state. Step 3 dot1x max-req count Set the number of times that the switch restarts the authentication process before the port changes to the unauthorized state.

This example shows how to set 4 as the number of times that the switch restarts the authentication process before the port changes to the unauthorized state: Switch config-if dot1x max-reauth-req 4 Configuring the Host Mode Beginning in privileged EXEC mode, follow these steps to allow multiple hosts clients on an Step 2 interface interface-id Specify the port to which multiple hosts are indirectly attached, and enter interface configuration mode.

Step 3 authentication host-mode multi-host Allow multiple hosts clients on an This example shows how to enable Step 2 interface interface-id Enter interface configuration mode, and specify the port to be configured. Step 3 dot1x default Reset the configurable Step 3 aaa accounting dot1x default start-stop group radius Enable Step 4 aaa accounting system default start-stop group radius Optional Enables system accounting using the list of all RADIUS servers and generates system accounting reload event messages when the switch reloads.

Step 5 end Return to privileged EXEc mode. Step 6 show running-config Verify your entries. Step 7 copy running-config startup-config Optional Saves your entries in the configuration file. Step 2 show vlan group all vlan-group-name Verify the configuration. Configuring an Authenticator and a Supplicant Switch with NEAT Configuring this feature requires that one switch outside a wiring closet is configured as a supplicant and is connected to an authenticator switch.

Beginning in privileged EXEC mode, follow these steps to configure a switch as an authenticator: Command Purpose Step 1 configure terminal Enter global configuration mode. Step 3 interface interface-id Specify the port to be configured, and enter interface configuration mode.

Step 4 switchport mode access Set the port mode to access. Step 5 authentication port-control auto Set the port-authentication mode to auto. Step 6 dot1x pae authenticator Configure the interface as a port access entity PAE authenticator. Step 7 spanning-tree portfast Enable Port Fast on an access port connected to a single workstation or server.

Step 9 show running-config interface interface-id Verify your configuration. Step 10 copy running-config startup-config Optional Save your entries in the configuration file. This example shows how to configure a switch as an Step 3 dot1x credentials profile Create Step 4 username suppswitch Create a username. Step 5 password password Create a password for the new username.

Step 6 dot1x supplicant force-multicast Force the switch to send only multicast EAPOL packets when it receives either unicast or multicast packets. From this mode, you can enter any privileged EXEC command or enter global configuration mode. Using the configuration modes global, interface, and line , you can make changes to the running configuration.

If you save the configuration, these commands are stored and used when the switch reboots. To access the various configuration modes, you must start at global configuration mode. From global configuration mode, you can enter interface configuration mode and line configuration mode. Table describes the main command modes, how to access each one, the prompt you see in that mode, and how to exit the mode. The examples in the table use the hostname Switch. Enter logout or quit.

Enter disable to exit. Use this mode to verify commands that you have entered. Use a password to protect access to this mode. While in privileged EXEC mode, enter the configure command. While in global configuration mode, enter the vlan vlan-id command. To exit to global configuration mode, enter the exit command. While in global configuration mode, enter the interface command with a specific interface.

To exit to global configuration mode, enter exit. For information about defining interfaces, see the "Using Interface Configuration Mode" section on page To configure multiple interfaces with the same parameters, see the "Configuring a Range of Interfaces" section on page While in global configuration mode, specify a line with the line vty or line console command.

For more detailed information on the command modes, see the command reference guide for this release. You can enter a question mark? You can also obtain a list of associated keywords and arguments for any command, as shown in Table You need to enter only enough characters for the switch to recognize the command as unique. This example shows how to enter the show configuration privileged EXEC command in an abbreviated form:.

Almost every configuration command also has a no form. In general, use the no form to disable a feature or function or reverse the action of a command. For example, the no shutdown interface configuration command reverses the shutdown of an interface.

Use the command without the keyword no to re-enable a disabled feature or to enable a feature that is disabled by default. Configuration commands can also have a default form. The default form of a command returns the command setting to its default. Most commands are disabled by default, so the default form is the same as the no form.

However, some commands are enabled by default and have variables set to certain default values. In these cases, the default command enables the command and sets variables to their default values. Table lists some error messages that you might encounter while using the CLI to configure your switch. Re-enter the command followed by a question mark? You entered the command incorrectly. The software provides a history or record of commands that you have entered. The command history feature is particularly useful for recalling long or complex commands or entries, including access lists.

You can customize this feature to suit your needs as described in these sections:. By default, the switch records ten command lines in its history buffer. You can alter this number for a current terminal session or for all sessions on a particular line. These procedures are optional. Beginning in privileged EXEC mode, enter this command to change the number of command lines that the switch records during the current terminal session:. Beginning in line configuration mode, enter this command to configure the number of command lines the switch records for all sessions on a particular line:.

To recall commands from the history buffer, perform one of the actions listed in Table These actions are optional. Recall commands in the history buffer, beginning with the most recent command. Repeat the key sequence to recall successively older commands.

Return to more recent commands in the history buffer after recalling commands with Ctrl-P or the up arrow key. Repeat the key sequence to recall successively more recent commands. While in privileged EXEC mode, list the last several commands that you just entered.

The number of commands that appear is controlled by the setting of the terminal history global configuration command and the history line configuration command. The command history feature is automatically enabled. You can disable it for the current terminal session or for the command line.

To disable the feature during the current terminal session, enter the terminal no history privileged EXEC command. To disable command history for the line, enter the no history line configuration command. This section describes the editing features that can help you manipulate the command line. Although enhanced editing mode is automatically enabled, you can disable it, re-enable it, or configure a specific line to have enhanced editing.

To globally disable enhanced editing mode, enter this command in line configuration mode:. To re-enable the enhanced editing mode for the current terminal session, enter this command in privileged EXEC mode:. To reconfigure a specific line to have enhanced editing mode, enter this command in line configuration mode:. Table shows the keystrokes that you need to edit command lines. These keystrokes are optional.

Press Ctrl-B , or press the left arrow key. Press Ctrl-F , or press the right arrow key. Transpose the character to the left of the cursor with the character located at the cursor. Recall commands from the buffer and paste them in the command line. The switch provides a buffer with the last ten items that you deleted. The buffer contains only the last 10 items that you have deleted or cut.

If you press Esc Y more than ten times, you cycle to the first buffer entry. Designate a particular keystroke as an executable command, perhaps as a shortcut. Scroll down a line or screen on displays that are longer than the terminal screen can display. Note The More prompt is used for any output that has more lines than can be displayed on the terminal screen, including show command output. You can use the Return and Space bar keystrokes whenever you see the More prompt.

Redisplay the current command line if the switch suddenly sends a message to your screen. You can use a wraparound feature for commands that extend beyond a single line on the screen. When the cursor reaches the right margin, the command line shifts ten spaces to the left. You cannot see the first ten characters of the line, but you can scroll back and check the syntax at the beginning of the command.

The keystroke actions are optional. To scroll back to the beginning of the command entry, press Ctrl-B or the left arrow key repeatedly. You can also press Ctrl-A to immediately move to the beginning of the line.

In this example, the access-list global configuration command entry extends beyond one line. When the cursor first reaches the end of the line, the line is shifted ten spaces to the left and redisplayed. Each time the cursor reaches the end of the line, the line is again shifted ten spaces to the left. After you complete the entry, press Ctrl-A to check the complete syntax before pressing the Return key to execute the command.

The software assumes you have a terminal screen that is 80 columns wide. If you have a width other than that, use the terminal width privileged EXEC command to set the width of your terminal. Use line wrapping with the command history feature to recall and modify previous complex command entries.

For information about recalling previous command entries, see the "Editing Commands through Keystrokes" section. You can search and filter the output for show and more commands. This is useful when you need to sort through large amounts of output or if you want to exclude output that you do not need to see.

Using these commands is optional. To use this functionality, enter a show or more command followed by the pipe character , one of the keywords begin , include , or exclude , and an expression that you want to search for or filter out:. Expressions are case sensitive. For example, if you enter exclude output , the lines that contain output are not displayed, but the lines that contain Output appear. This example shows how to include in the output display only lines where the expression protocol appears:.

You can access the CLI through a console connection, through Telnet, or by using the browser. Before you can access the CLI, you must connect a terminal or PC to the switch console port and power on the switch as described in the hardware installation guide that shipped with your switch. If your switch is already configured, you can access the CLI through a local console connection or through a remote Telnet session, but your switch must first be configured for this type of access.

For information about connecting to the console port, see the switch hardware installation guide. The switch must have network connectivity with the Telnet or SSH client, and the switch must have an enable secret password configured. For information about configuring the switch for Telnet access, see the "Setting a Telnet Password for a Terminal Line" section on page The switch supports up to 16 simultaneous Telnet sessions.

Changes made by one Telnet user are reflected in all other Telnet sessions. The switch supports up to five simultaneous secure SSH sessions. After you connect through the console port, through a Telnet session or through an SSH session, the user EXEC prompt appears on the management station. Skip to content Skip to search Skip to footer.

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