Brocade Communications Systems 53-1002163-02 manual Lacp troubleshooting tips

LACP troubleshooting tips 8

To configure the LACP timeout period on a CEE interface, perform the following steps from privileged EXEC mode.

1.Enter the configure terminal command to access global configuration mode.

2.Enter the interface command to specify the CEE interface type and slot/port number.

switch(config)#interface tengigabitethernet 0/1

3.Enter the no shutdown command to enable the CEE interface.

4.Specify the LACP timeout period for the CEE interface.

switch(conf-if-te-0/1)#lacp timeout short

Clearing LACP counter statistics on a LAG

To clear LACP counter statistics, perform the following task from privileged EXEC mode.

Enter the clear command to clear the LACP counter statistics for the specified LAG group number.

switch#clear lacp 42 counters

Clearing LACP counter statistics on all LAG groups

To clear LACP counter statistics, perform the following task from privileged EXEC mode.

Enter the clear command to clear the LACP counter statistics for all LAG groups.

switch#clear lacp counters

Displaying LACP information

Use the show command to display LACP statistics and configuration information. See the

Converged Enhanced Ethernet Command Reference for information.

LACP troubleshooting tips

To troubleshoot problems with your LACP configuration, use the following troubleshooting tips.

If a standard IEEE 802.3ad-based dynamic trunk is configured on a link and the link is not able to join the LAG:

•Make sure that both ends of the link are configured as standard for the trunk type.

•Make sure that both ends of the link are not configured for passive mode. They must be configured as either active/active, active/passive, or passive/active.

•Make sure that the port-channel interface is in the administrative “up” state by ensuring that the no shutdown command was entered on the interface on both ends of the link.

•Make sure that the links that are part of the LAG are connected to the same neighboring switch.

•Make sure that the system ID of the switches connected by the link is unique. This can be verified by entering the show lacp sys-idcommand on both switches.

Converged Enhanced Ethernet Administrator’s Guide	85
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