address-violation autobaud back-PRessure banner motd bridge (forwarding-time) bridge-group bridge-group (allow-overlap) bridge-group (enable) bridge (hello-time) bridge (max-age) bridge (priority) cdp (advertise-v2) cdp (enable) cdp (holdtime) cdp (timer) cgmp cgmp (hold-time) cgmp (leave-processing) cgmp (remove) cgmp (reserved) clear (cgmp) clear (dns-cache) clear (counters) clear (mac-address-table) clear (uplink-fast statistics) clear (vtp statistics) cluster configure copy (nvram tFTP) copy (tftp) copy (xmodem) databits delete (nvram) delete (vtp) description disable duplex ecc enable enable (passWord) enable (secret) enable (use-tacacs) end exit fddi (authorization) fddi (auth-string) fddi (notify-timer) fddi (novell-snap-translation) fddi (unmatched-snap-translation) hostname interface ip (address) ip (default-gateway) ip (domain-name) ip (http port) ip (http server) ip (mgmt-vlan) ip (name-server) line console login (tacacs) mac-address-table (aging-time) mac-address-table (permanent) mac-address-table (restricted static) menu modem (dialin) modem (init-string) monitor-port monitor-port (monitored) monitor-port (port) multicast-store-and-forward network-port pagp-port-priority parity password-thresh ping port (block) port-channel (mode) port-channel (preserve-order) port-channel (template-port) port secure port secure (clear) reload reload (in) rip service (config) session show (bridge-group) show cdp (interface) show cdp (neighbors) show (cgmp) show cluster show (history) show (interfaces)
Command Descriptions This chapter is a command-by-command description of the firmware version 9.00 CLI commands for the Catalyst 1900 series and Catalyst 2820 series switches. address-violation Use the address-violation global configuration command to specify the action for a port address violation. Use the no address-violation command to set the switch to its default value (suspend). address-violation {suspend disable ignore}
no address-violation Syntax Description suspend Suspend port on address violation. A suspended port is temporarily disabled until a certain number of frames with the proper address is received. disable Disable port on address violation. ignore Ignore address violation.
Default The port is suspended on address violation. Command Mode Global configuration Usage Guidelines An address violation occurs when a secured port receives a source address that has been assigned to another secured port or when a port tries to learn an address that exceeds the address-table size limit. Example This command causes the switch to disable the port on address violation. hostname(config)# address-violation disable Related Commands port secure show (port system) autobaud Use the autobaud line-configuration command to enable remote baud-rate matching. Use the no autobaud command to disable remote baud-rate matching. autobaud no autobaud Syntax Description This command has no arguments or keywords. Default Remote baud-rate matching is enabled. Command Mode Line configuration Example This example shows how to enable remote baud-rate matching. hostname(config-line)# autobaud Related Commands databits line console modem (dialin) parity show (line) show (terminal) speed stopbits terminal back-pressure Use the back-pressure global configuration command to enable back pressure. Use the no back-pressure command to disable back pressure. back-pressure no back-pressure Syntax Description This command has no arguments or keywords. Default Back pressure is disabled. Command Mode Global configuration Usage Guidelines When the back-pressure command is enabled, the switch forces a collision when there is no buffer to receive frames. This collision causes the transmitter to retransmit dropped frames immediately, increasing performance. The command is valid only for a 10BaseT port Operating in half-duplex mode. Example This example shows how to enable back pressure. hostname(config)# back-pressure Related Commands configure duplex show (interfaces) show (port system) banner motd Use the banner motd global configuration command to set the message-of-the-day (MOTD) banner. Use the no banner motd command to remove the banner. banner [motd] d message d no banner [motd] Syntax motd Optional command acronym for "message of the day." d Delimiting character---a pound sign (#), for example. Do not use the delimiting character in the banner message. message Message text up to 400 characters or 20 lines.
Default No MOTD is set. Command Mode Global configuration Usage Guidelines
When configuring a multiline banner, the multiline help prompt displays after you enter the first line of the banner: Enter TEXT message. End with the character c
where c is the delimiting character you choose. When a MOTD banner is set, it displays at the login screen to the serial port console and all telnet connections (except the rcommand connections from a command switch). The maximum size of the banner is 400 characters or 20 lines, whichever is reached first. Examples This example sets the MOTD banner to Empowering the Internet Generation. hostname(config)# banner motd # Empowering the Internet Generation #
This example shows how to set the MOTD banner message with line feeds. hostname(config)# banner #
Enter TEXT message. End with the character #. Line 1 is now up. Line 2 is still down. #
This example shows how to remove the MOTD banner. hostname(config)# no banner motd Related Commands None bridge (forwarding-time) Use the bridge forwarding-time global configuration command to set the Spanning-Tree Protocol (STP) forward-delay time for a particular bridge group. Use the no bridge forwarding-time command to reset the forward-delay time to its default value. bridge bridge-group forwarding-time time no bridge bridge-group forwarding-time Syntax Description bridge-group Number from 1 to 4. time Number from 4 to 30 seconds.
Default The default is 15 seconds. Command Mode Global configuration Usage Guidelines This command is available only when bridge groups are enabled. Example The following example shows how to set the forward-delay time to 10 seconds for bridge-group 1. hostname(config)# bridge 1 forwarding-time 10 Related Commands bridge (hello-time) bridge (max-age) bridge (priority) bridge-group (allow-overlap) bridge-group (enable) show (bridge-group) show (spantree) spantree bridge-group Use the bridge-group interface configuration command to modify the assignments of ports to bridge groups. Use the no bridge-group command to remove ports from a bridge group. bridge-group bridge-group no bridge-group bridge-group Syntax Description bridge-group Number from 1 to 4.
