HP 6120XG ProCurve Series 6120 Blade Switches Management and Configuration Gui - Page 250

Port Status and Configuration Uni-Directional Link Detection (UDLD) ■ To re-assign a VLAN ID, re-enter the command with the new VLAN ID number. The new command will overwrite the previous command setting. ■ When configuring UDLD for tagged ports, you may receive a warning message if there are any inconsistencies with the port's VLAN configuration (see page 37 for potential problems). Viewing UDLD Information The following show commands allow you to display UDLD configuration and status via the CLI. Syntax: show link-keepalive Displays all the ports that are enabled for link-keepalive. Syntax: show link-keepalive statistics Displays detailed statistics for the UDLD-enabled ports on the switch. Syntax: clear link-keepalive statistics Clears UDLD statistics. This command clears the packets sent, packets received, and transitions counters in the show linkkeepalive statistics display. To display summary information on all UDLD-enabled ports, enter the show link-keepalive command. For example: ProCurve(config)# show link-keepalive Total link-keepalive enabled ports: 4 Keepalive Retries: 3 Keepalive Interval: 1 sec Port Enabled Physical Keepalive Adjacent UDLD Port 1 is UDLD-enabled, and tagged for a specific VLAN. Status Status Switch VLAN 1 Yes up up 00d9d-f9b700 200 2 Yes 3 Yes 4 Yes 5 No up down up down up off-line failure off-line 01560-7b1600 Pourtn3tisaUgDgLeDd-enabled, but has no physical connection. Port 4 is connected, but is blocked due to a link-keepalive failure Port 5 has been disabled by the System Administrator. Figure 10-22. Example of Show Link-Keepalive Command 10-35