Chapter 12
| Link Aggregation Commands
Dynamic Configuration Commands
– 385 –
â—†
Once the remote side of a link has been established, LACP operational settings
are already in use on that side. Configuring LACP settings for the partner only
applies to its administrative state, not its operational state.
Note:
Configuring the partner admin-key does not affect remote or local switch
operation. The local switch just records the partner admin-key for user reference.
â—†
By default, the actor’s operational key is determined by port's link speed
(1000f - 4, 100f - 3, 10f - 2), and copied to the admin key.
Example
Console(config)#interface ethernet 1/5
Console(config-if)#lacp actor admin-key 120
Console(config-if)#
lacp port-priority
This command configures LACP port priority. Use the
no
form to restore the default
setting.
Syntax
lacp
{
actor
|
partner
}
port-priority
priority
no lacp
{
actor
|
partner
}
port-priority
actor
- The local side an aggregate link.
partner
- The remote side of an aggregate link.
priority - LACP port priority is used to select a backup link. (Range: 0-65535)
Default Setting
32768
Command Mode
Interface Configuration (Ethernet)
Command Usage
â—†
Setting a lower value indicates a higher effective priority.
â—†
If an active port link goes down, the backup port with the highest priority is
selected to replace the downed link. However, if two or more ports have the
same LACP port priority, the port with the lowest physical port number will be
selected as the backup port.
â—†
If an LAG already exists with the maximum number of allowed port members,
and LACP is subsequently enabled on another port using a higher priority than
an existing member, the newly configured port will replace an existing port
member that has a lower priority.