Alteon Application Switch Operating System Application Guide
Port Trunking
94
Document
ID:
RDWR-ALOS-V2900_AG1302
When the system is initialized, all ports by default are in LACP off mode and are assigned unique
admin keys. To make a group of ports eligible for aggregation, you assign all of them the same
admin key. You must set the port's LACP mode to active to activate LACP negotiation. You can set
another port's LACP mode to passive, to reduce the amount of LACPDU traffic, at the initial trunk-
forming stage.
Note:
LACP implementation does not support the Churn machine, an option used for detecting the
port is operable within a bounded time period between the actor and the partner. Only the marker
responder is implemented, and there is no marker protocol generator. Refer to 802.3ad-2002 for
details.
Configuring LACP
Use the following procedure to configure LACP for port 1 through port 4 for the actor device to
participate in link aggregation. Perform a similar configuration on the partner device with admin
key 50.
1. Set the LACP mode on port 1.
2. Define the admin key on port 1. Only ports with the same admin key can form a LACP trunk
group.
3. Set the LACP mode on ports 2 to 4.
4. Define the admin key on ports 2 to 4.
5. Apply and verify the configuration.
>> # /cfg/l2/lacp/port 1/mode
(Select port 1 for LACP mode of
operation)
>> LACP port 1# active
(Set port 1 to LACP active)
Current Port 1 LACP mode setting: off
New Port 1 LACP mode setting: active
>> # /cfg/l2/lacp/port 1/adminkey 100
(Set port 1 adminkey to 100)
Current LACP port adminkey: 1
New pending LACP port adminkey: 100
>> # /cfg/l2/lacp/port 2/mode active
(Select port 2 mode of operation)
>> # /cfg/l2/lacp/port 3/mode active
(Select port 3 mode of operation)
>> # /cfg/l2/lacp/port 4/mode active
(Select port 4 mode of operation)
>> # /cfg/l2/lacp/port 2/adminkey 100
(Select port 2 adminkey to 100)
>> # /cfg/l2/lacp/port 3/adminkey 100
(Select port 3 adminkey to 100)
>> # /cfg/l2/lacp/port 4/adminkey 100
(Select port 4 adminkey to 100)
>> LACP port 4# apply
(Make your changes active)
>> LACP port 4# cur
(View current trunking configuration)
