Cisco Catalyst 4500 Series Software Configuration Guide

27-11
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
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 2
Number of aggregators: 2
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) LACP Gi1/23(H) Gi1/24(H)
Switch#
Configuring Layer 2 EtherChannels
To configure Layer 2 EtherChannels, configure the Ethernet interfaces with the channel-group
command. This operation creates the port channel logical interface.
Note Cisco IOS software creates port channel interfaces for Layer 2 EtherChannels when you configure
Layer 2 Ethernet interfaces with the channel-group command.
To configure Layer 2 Ethernet interfaces as Layer 2 EtherChannels, perform this task for each interface:
This example shows how to configure Fast Ethernet interfaces 5/6 and 5/7 into port channel 2 with PAgP
mode desirable:
Switch# configure terminal
Switch(config)# interface range fastethernet 5/6 - 7 (Note: Space is mandatory.)
Switch(config-if-range)# channel-group 2 mode desirable
Switch(config-if-range)# end
Switch# end
Note See the “Configuring a Range of Interfaces” section on page 9-4 for information about the range
keyword.
Command Purpose
Step 1
Switch(config)# interface {fastethernet | gigabitethernet
| tengigabitethernet} slot/port
Selects a physical interface to configure.
Step 2
Switch(config-if)# channel-group port_channel_number mode
{active | on | auto | passive | desirable}
Configures the interface in a port channel and
specifies the PAgP or LACP mode.
If you use PAgP, enter the keywords auto or
desirable.
If you use LACP, enter the keywords active or
passive.
Step 3
Switch(config-if)# end
Exits configuration mode.
Step 4
Switch# show running-config interface {fastethernet |
gigabitethernet} slot/port
Switch# show interface {fastethernet | gigabitethernet |
tengigabitethernet} slot/port etherchannel
Verifies the configuration.

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