Configuring Lacp Port Channel Min-Links - Cisco Catalyst 4500 Series Software Configuration Manual

Configuring EtherChannel
Building configuration...
Current configuration:
!
interface Port-channel1
switchport
no port-channel standalone-disable
end
Switch#
This example shows how to verify the state of port channel interface 1:
Switch# show etherchannel 1 port-channel
Port-channel: Po13
------------
Age of the Port-channel
Logical slot/port
Port state
Protocol
Port security
Standalone
Switch#

Configuring LACP Port Channel Min-links

Beginning in Cisco IOS Release 15.2(4)E, and Cisco IOS XE Release 3.8.0E, you can specify the
minimum number of active ports that must be in the link-up state and bundled in an EtherChannel for
the port channel interface to transition to the link-up state. Using EtherChannel min-links, you can
prevent low-bandwidth LACP EtherChannels from becoming active. Port channel min-links also cause
LACP EtherChannels to become inactive if they have too few active member ports to supply the required
minimum bandwidth.
For a Multichassis EtherChannel (MEC), the LACP min-links command argument defines the minimum
Note
number of physical links in each chassis for the MEC to be operational.
To configure the minimum number of links that are required for a port channel, perform the following
task:
Command
Step 1
Switch(config)# interface port-channel
channel-number
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
27-14
Port-channels in the group:
---------------------------
(Primary Aggregator)
= 0d:00h:07m:57s
= 11/13 Number of ports = 0
= Port-channel Ag-Not-Inuse
= LACP
= Disabled
= Enabled (independent mode)
Chapter 27 Configuring EtherChannel and Link State Tracking
Purpose
Enters interface configuration mode for a port-channel.
The valid range for channel-number is 1 to 256.