Cisco Catalyst 4500 Series Software Configuration Guide

27-18
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
Configuring Auto-LAG on a Port Interface
To configure auto-LAG globally, perform this task:
Configuring Persistence with Auto-LAG
To convert the automatically created EtherChannel back to a manual one, perform this task:
Configuring EtherChannel Load Balancing
Note Load balancing can only be configured globally. As a result, all channels (manually configured, PagP,
or LACP) use the same load-balancing method.
Command Purpose
Step 1
Switch(config)# port-channel auto
Configures auto-LAG globally on the device.
Step 2
Switch(config)# end
Exits configuration mode.
Step 3
Switch# show etherchannel auto
Displays the EtherChannel created automatically.
Command Purpose
Step 1
Switch(config)# interface interface-id
Specifies the port interface to be enabled for auto-LAG,
and enters interface configuration mode.
Step 2
Switch(config-if)# channel-group auto
(Optional) Enables auto-LAG feature on individual port
interface.
By default, the auto-LAG feature is enabled on the port.
Step 3
Switch(config)# end
Exits configuration mode.
Step 4
Switch# show etherchannel auto
Displays the EtherChannel created automatically.
Command Purpose
Step 1
Switch# port-channel channel-number persistent
Specifies the port interface to be enabled for auto-LAG,
and enters interface configuration mode.
Step 2
Switch(config-if)# channel-group auto
Converts the auto created EtherChannel into a manual
one and allows you to add configuration on the
EtherChannel.
Step 3
Switch(config)# end
Exits configuration mode.
Step 4
Switch# show etherchannel summary
Displays EtherChannel information.

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