Foundry Configuration Guide for the FESX, FSX, and FWSX
10 - 22 © Foundry Networks, Inc. December 2005
For example, to change a port group’s key from the one assigned by the software to another value, enter
commands such as the following:
NOTE: Use this command sequence to change the key for ports that do not have link aggregation enabled, and
for all other link aggregation parameters (i.e., system priority, port priority, and link type).
FastIron SuperX Router(config)# interface ethernet 1/1 to 1/4
FastIron SuperX Router(config-mif-1/1-1/4)# link-aggregate configure key 10000
FastIron SuperX Router(config-mif-1/1-1/4)# interface ethernet 3/5 to 3/8
FastIron SuperX Router(config-mif-3/5-3/8)# link-aggregate configure key 10000
Configuring Keys For Ports with Link Aggregation Enabled
NOTE: As shown in this command sequence, to change the key on ports that already have link aggregation
enabled, you must first turn OFF link aggregation, configure the new key, then re-enable link aggregation.
FastIron SuperX Router(config)# interface ethernet 1/1 to 1/4
FastIron SuperX Router(config-mif-1/1-1/4)# link-aggregate off
FastIron SuperX Router(config-mif-1/1-1/4)# link-aggregate configure key 10000
FastIron SuperX Router(config-mif-1/1-1/4)# link-aggregate active
FastIron SuperX Router(config-mif-1/1-1/4)# interface ethernet 3/5 to 3/8
FastIron SuperX Router(config-mif-3/5-3/8)# link-aggregate off
FastIron SuperX Router(config-mif-3/5-3/8)# link-aggregate configure key 10000
FastIron SuperX Router(config-mif-3/5-3/8)# link-aggregate active
These commands change the key for ports 1/1 – 1/4 and 3/5 – 3/8 to 10000. Since all ports in an aggregate link
must have the same key, the command in this example enables ports 1/1 – 1/4 and 3/5 – 3/8 to form a multi-slot
aggregate link.
Syntax: [no] link-aggregate configure [system-priority <num>] | [port-priority <num>] | [key <num>] |
[type server | switch]
The system-priority <num> parameter specifies the Foundry device’s link aggregation priority. A higher value
indicates a lower priority. You can specify a priority from 0 – 65535. The default is 1.
The port-priority <num> parameter specifies an individual port’s priority within the port group. A higher value
indicates a lower priority. You can specify a priority from 0 – 65535. The default is 1.
The key <num> parameter identifies the group of ports that are eligible to be aggregated into a trunk group. The
software automatically assigns a key to each group of ports. The software assigns the keys in ascending
numerical order, beginning with 0. You can change a port group’s key to a value from 0 – 65535.
NOTE: If you change the key for a port group, Foundry recommends that you use the value 10000 or higher, to
avoid potential conflicts with dynamically created keys.
The type server | switch parameter specifies whether the port group is connected to a server (server) or to
another networking device (switch). The default is switch.
You can enter one or more of the command’s parameters on the same command line, in any order.
Displaying and Determining the Status of Aggregate Links
The show link-aggregation command provides the ability to view the status of dynamic links. You can determine
the status of ports that are members of an aggregate link, and tell whether or not LACPCU messages are being
transmitted between the ports.
The following section provides details about the events that can affect the status of ports in an aggregate link and
the status of LACP messages exchanged between the ports. Later sections provide instructions for viewing these
status reports.
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