Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 125)

CLI display of UDLD information (Continued) TABLE 24
Field Description
Keepalive Retries The number of times a port will attempt the health check before concluding that
the link is down.
Keepalive Interval The number of seconds between health check packets.
Port The port number.
Physical Link The state of the physical link. This is the link between the Brocade port and the
directly connected device.
Logical Link The state of the logical link. This is the state of the link between this Brocade port
and the Brocade port on the other end of the link.
State The traffic state of the port.
Link-vlan The ID of the tagged VLAN in the UDLD packet.
If a port is disabled by UDLD, the change also is indicated in the output of the show interfaces brief
command. An example is given below.
device#show interfaces brief
Port Link State Dupl Speed Trunk Tag Priori MAC Name
1/1 Up LK-DISABLE
None None None No level0 0000.00a9.bb00
1/2 Down None None None None No level0 0000.00a9.bb01
1/3 Down None None None None No level0 0000.00a9.bb02
1/4 Down None None None None No level0 0000.00a9.bb03
If the port was already down before you enabled UDLD for the port, the port state is listed as None.
Syntax: show interfaces brief
Displaying information for a single port
To display detailed UDLD information for a specific port, enter a command such as the following.
device#show link-keepalive ethernet 4/1
Current State : up Remote MAC Addr : 0000.00d2.5100
Local Port : 4/1 Remote Port : 2/1
Local System ID : e0927400 Remote System ID : e0d25100
Packets sent : 254 Packets received : 255
Transitions : 1 Link-vlan : 100
Port blocking : No BM disabled : No
Syntax: show link-keepalive [ ethernet [ slotnum/] portnum ]
CLI display of detailed UDLD information TABLE 25
Field Description
Current State The state of the logical link. This is the link between this Brocade port and the Brocade port on
the other end of the link.
Remote MAC Addr The MAC address of the port or device at the remote end of the logical link.
Displaying information for a single port
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide 125
53-1003086-04