HP ProCurve Series 3400cl Release Notes page 95

Displaying Summary UDLD Information. 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:
Port Enabled Physical
Status
-------------------------------------------------------------------
1 Yes up
2 Yes up
3 Yes down
4 Yes up
5 No down
Figure 21. Example of UDLD Information displayed using Show Link-Keepalive Command
3 Keepalive Interval: 1 sec
Keepalive Adjacent
Status Switch
up 00d9d-f9b700
up 01560-7b1600
off-line
failure
off-line
Release M.10.09 Enhancements
Port 1 is UDLD-enabled, and
UDLD
tagged for a specific VLAN.
VLAN
200
untagged
Port 3 is UDLD-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.
Enhancements
85