Configuration Guide User guide
FastIron Configuration Guide 735
53-1002494-02
Single instance LACP configuration
Configuration notes for single link LACP
• Single link LACP is supported on 1-GbE and 10-GbE ports, as well as across modules.
• Single link LACP is not supported on static trunk ports.
• Single link LACP is not intended for the creation of trunk groups.
• The single link LACP timer is always short (3 seconds) and is not configurable. PDUs are sent
out every three seconds.
• Single link LACP is not supported on ports that have unidirectional link detection (UDLD)
configured.
CLI syntax for single link LACP
To form a single link LACP, the port on both sides of the link must have LACP enabled. You can then
define a single link LACP at the interface level of the device by entering the following commands.
Brocade(config)#interface ethernet 8/1
Brocade(config-if-e1000-8/1)#link-aggregate configure singleton
Link-aggregation active
Syntax: [no] link-aggregate configure
When single link LACP is configured, the show link-aggregate command displays the following
information.
If the singleton keyword is configured on the port, the “Key” column displays “singleton”. Refer to
“Description of show link-aggregate command output” on page 732 to interpret the information on
the displayed output.
Also, when ports are logically brought up or down while the singleton keyword is configured on the
port, the following syslog messages are generated.
Logical link on interface ethernet <slot#/port#> is up.
Logical link on interface ethernet <slot#/port#> is down.
Brocade#show link-aggregate
System ID: 00e0.5200.0118
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]
2/1 1 1 1 Yes S Agg Syn No No Def Exp Ina
2/2 1 1 1 Yes S Agg Syn No No Def Exp Ina
2/3 1 1 singleton Yes S Agg Syn No No Def Exp Ina
2/4 1 1 singleton Yes S Agg Syn No No Def Exp Dwn