Chapter 13
Configuring EtherChannels
Configuring Port Channel Logical Interfaces for Layer 3 EtherChannels
Note
•
•
•
To create a port channel interface for a Layer 3 EtherChannel, perform this task:
Command
Step 1
Router(config)# interface port-channel number
Router(config)# no interface port-channel number
Step 2
Router(config-if)# ip address ip_address mask
Step 3
Router(config-if)# end
Step 4
Router# show running-config interface
port-channel number
When creating the port channel interface, the group number can be one of the following:
•
•
•
This example shows how to create port channel interface 1:
Router# configure terminal
Router(config)# interface port-channel 1
Router(config-if)# ip address 172.32.52.10 255.255.255.0
Router(config-if)# end
This example shows how to verify the configuration of port channel interface 1:
Router# show running-config interface port-channel 1
Building configuration...
Current configuration:
!
interface Port-channel1
ip address 172.32.52.10 255.255.255.0
no ip directed-broadcast
end
Router#
78-14064-04
When configuring Layer 2 EtherChannels, you cannot put Layer 2 LAN ports into manually created
port channel logical interfaces. If you are configuring a Layer 2 EtherChannel, do not perform the
procedures in this section (see the
When configuring Layer 3 EtherChannels, you must manually create the port channel logical
interface as described in this section, and then put the Layer 3 LAN ports into the channel group (see
the
"Configuring Channel Groups" section on page
To move an IP address from a Layer 3 LAN port to an EtherChannel, you must delete the IP address
from the Layer 3 LAN port before configuring it on the port channel logical interface.
Release 12.1(5)E and later—1 through 256, up to a maximum of 64 port channel interfaces
Releases 12.1(4)E1, 12.1(3a)E4, and 12.1(3a)E3—1 through 64
Release 12.1(2)E and earlier—1 through 256
"Configuring Channel Groups" section on page
13-8).
Purpose
Creates the port channel interface.
Deletes the port channel interface.
Assigns an IP address and subnet mask to the
EtherChannel.
Exits configuration mode.
Verifies the configuration.
Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
Configuring EtherChannels
13-8).
13-7