Dell PowerConnect B-FCXs Configuration Manual page 457

NOTE
Configuration commands for link aggregation differ depending on whether you are using the default
link aggregation key automatically assigned by the software, or if you are assigning a different,
unique key. Follow the commands below, according to the type of key you are using. For more
information about keys, refer to
Using the default key assigned by the software
PowerConnect(config)#interface ethernet 1/1
PowerConnect(config-if-e1000-1/1)#link-aggregate active
PowerConnect(config)#interface ethernet 1/2
PowerConnect(config-if-e1000-1/2)#link-aggregate active
The commands in this example enable the active mode of link aggregation on ports 1/1 and 1/2.
The ports can send and receive LACPDU messages. Note that these ports will use the default key,
since one has not been explicitly configured.
NOTE
In conformance with the 802.3ad specification, the default key assigned to an aggregate link is
based on the port type (1 Gbps port or 10 Gbps port). The Dell PowerConnect device assigns
different keys to 10 Gbps ports than 1 Gbps ports, so that ports with different physical capabilities
will not be able to form a trunk.
Assigning a unique key
PowerConnect(config)#interface ethernet 1/1
PowerConnect(config-if-e1000-1/1)#link-aggregate configure key 10000
PowerConnect(config-if-e1000-1/1)#link-aggregate active
PowerConnect(config)#interface ethernet 1/2
PowerConnect(config-if-e1000-1/2)#link-aggregate configure key 10000
PowerConnect(config-if-e1000-1/2)#link-aggregate active
The commands in this example assign the key 10000 and enable the active mode of link
aggregation on ports 1/1 and 1/2. The ports can send and receive LACPDU messages.
NOTE
As shown in this example, when configuring a key, it is pertinent that you assign the key prior to
enabling link aggregation.
The following commands enable passive link aggregation on ports 1/5 – 1/8.
PowerConnect(config)#interface ethernet 1/5 to 1/8
PowerConnect(config-mif-1/5-1/8)#link-aggregate passive
The commands in this example enable the passive mode of link aggregation on ports 1/5 – 1/8.
These ports wait for the other end of the link to contact them. After this occurs, the ports can send
and receive LACPDU messages.
To disable link aggregation on a port, enter a command such as the following.
PowerConnect(config-if-e1000-1/8)#link-aggregate off
Syntax: [no] link-aggregate active | passive | off
Syntax: [no] link-aggregate configure [system-priority <num>] | [port-priority <num>] | [key
PowerConnect B-Series FCX Configuration Guide
53-1002266-01
"Key"
<num>]
Dynamic link aggregation
on page 417.
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