Link aggregation group (LAG)

Link Aggregation allows you to assign multiple physical links to one logical link that functions as a single, higher-speed link providing dramatically increased bandwidth.

Relevant Configuration

Create and configure the LAG interface

switch (config) # interface port-channel 1
switch (config interface port-channel 1) #

Exit port-channel context

switch (config interface port-channel 1) # exit
switch (config) #

Associate member links with the LAG interface switch(config)# interface IFACE

switch (config interface ethernet 1/4) # channel-group 1 mode on
switch (config interface ethernet 1/4) #

To enable LACP in LAG

switch (config interfaces ethernet 1/7)# lacp rate fast

Show Commands to Validate Functionality

show interface port-channel

Expected Results

  • Step 1: You can create and configure a LAG
  • Step 2: You can add ports to a LAG
  • Step 3: You can configure a LAG interface

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