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Clearing udld statistics – Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

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CLI display of detailed UDLD information (Continued)

TABLE 25

Field

Description

Local Port

The port number on this Brocade device.

Remote Port

The port number on the Brocade device at the remote end of the link.

Local System ID

A unique value that identifies this Brocade device. The ID can be used by Brocade technical
support for troubleshooting.

Remote System ID A unique value that identifies the Brocade device at the remote end of the link.

Packets sent

The number of UDLD health-check packets sent on this port.

Packets received

The number of UDLD health-check packets received on this port.

Transitions

The number of times the logical link state has changed between up and down.

Port blocking

Information used by Brocade technical support for troubleshooting.

Link-vlan

The ID of the tagged VLAN in the UDLD packet.

BM disabled

Information used by Brocade technical support for troubleshooting.

The show interface ethernet command also displays the UDLD state for an individual port. In
addition, the line protocol state listed in the first line will say "down" if UDLD has brought the port
down. An example is given below.

device#show interface ethernet 1/1

FastEthernet1/1 is down, line protocol is down, link keepalive is enabled

Hardware is FastEthernet, address is 0000.00a9.bbca (bia 0000.00a9.bbca)

Configured speed auto, actual unknown, configured duplex fdx, actual unknown

Member of L2 VLAN ID 1, port is untagged, port state is DISABLED

STP configured to ON, priority is level0, flow control enabled

mirror disabled, monitor disabled

Not member of any active trunks

Not member of any configured trunks

No port name

300 second input rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

300 second output rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 multicasts, 0 unicasts

0 input errors, 0 CRC, 0 frame, 0 ignored

0 runts, 0 giants, DMA received 0 packets

19 packets output, 1216 bytes, 0 underruns

Transmitted 0 broadcasts, 19 multicasts, 0 unicasts

0 output errors, 0 collisions, DMA transmitted 19 packets

In this example, the port has been brought down by UDLD. Notice that in addition to the information in
the first line, the port state on the fourth line of the display is listed as DISABLED.

Clearing UDLD statistics

To clear UDLD statistics, enter the following command.

device#clear link-keepalive statistics

Syntax: clear link-keepalive statistics

Clearing UDLD statistics

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FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide

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