Cisco Catalyst 4500 Series Software Configuration Guide

27-14
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 27 Configuring EtherChannel and Link State Tracking
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-channels in the group:
---------------------------
Port-channel: Po13 (Primary Aggregator)
------------
Age of the Port-channel = 0d:00h:07m:57s
Logical slot/port = 11/13 Number of ports = 0
Port state = Port-channel Ag-Not-Inuse
Protocol = LACP
Port security = Disabled
Standalone = Enabled (independent mode)
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.
Note For a Multichassis EtherChannel (MEC), the LACP min-links command argument defines the minimum
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 Purpose
Step 1
Switch(config)# interface port-channel
channel-number
Enters interface configuration mode for a port-channel.
The valid range for channel-number is 1 to 256.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E