Instructions
This article explains how to configure Link Aggregation
When configuring Link Aggregation (LAG), you treat multiple interfaces on a switch as one logical interface. This provides greater bandwidth (not speed), and link redundancy, without relying on Spanning-tree. The two types of LAGs are static, and LACP. Static LAGs always assume they are part of a LAG, while LACP negotiates with the connecting device. If both sides are running LACP, then the LACP becomes active. Best practice is to use LACP over static when available.
To configure a LAG, perform the following. This example uses all 8 external interfaces for an 8 interface LAG.
1. Ensure all interfaces participating in the LAG have any existing configuration removed.
2. Unplug, or shutdown all interfaces participating in the LAG, until configuration is complete on both sides.
3. Input the following commands.
console>enable
console#config
console(config)#interface range gi0/1-8
For a static LAG
console(config-if-range)#channel-group 1 mode on
For an LACP LAG
console(config-if-range)#channel-group 1 mode auto
console(config-if-range)#exit
console(config)#
To configure the LAG, enter the virtual interface and apply any configuration there.
console(config)#interface port-channel 1
console(config-if)#
Ensure the connecting device is properly configured for a LAG, and then turn on all interfaces, and connect the interfaces. Save your configuration once everything is verified and working.
Below are some commands that show the status of the LAG for troubleshooting.
Console#show interface port-channel 1
Console#show LACP port-channel 1
Affected Products
POWEREDGE VRTX