Configuration Guide User guide

734 FastIron Configuration Guide
53-1002494-02
Clearing the negotiated aggregate links table
Displaying link aggregation and port status information for FastIron stackable
devices
To display link aggregation information for devices in an IronStack, enter the show link-aggregate
command. The output for an Ironstack resembles the following.
Displaying LACP status information
Use the show trunk command to determine the status of LACP. Refer to “Displaying trunk group
configuration information” on page 716.
Clearing the negotiated aggregate links table
When a group of ports negotiates a trunk group configuration, the software stores the negotiated
configuration in a table. You can clear the negotiated link aggregation configurations from the
software. When you clear the information, the software does not remove link aggregation
parameter settings you have configured. Only the configuration information negotiated using LACP
is removed.
NOTE
The software automatically updates the link aggregation configuration based on LACPDU messages.
However, clearing the link aggregation information can be useful if you are troubleshooting a
configuration.
To clear the link aggregation information, enter the following command at the Privileged EXEC level
of the CLI.
Brocade#clear link-aggregate
Syntax: clear link-aggregate
Single instance LACP configuration
A single instance of link aggregation (or single link LACP) can be used for unidirectional link
detection. Single link LACP is based on 802.3ad LACP, but allows you to form an aggregated link
with only one Ethernet port. It is the preferred method for detecting unidirectional links across
multi-vendor devices, instead of unidirectional link detection (UDLD), because it is based on a
standard rather than on a proprietary solution.
Brocade(config)#show link-aggregate
System ID: 0012.f2e5.a200
Long timeout: 120, default: 120
Short timeout: 3, default: 3
Port [Sys P] [Port P] [ Key ] [Act][Tio][Agg][Syn][Col][Dis][Def][Exp][Ope]
1/1/1 1 1 13000 Yes L Agg Syn Col Dis No No Ope
2/1/1 1 1 13000 Yes L Agg Syn Col Dis No No Ope
3/1/1 1 1 13000 Yes L Agg Syn Col Dis No No Ope
4/1/1 1 1 13000 Yes L Agg Syn Col Dis No No Ope