Cisco 4500M Software Manual page 257

Chapter 17 Understanding and Configuring EtherChannel
To create a port-channel interface for a Layer 3 EtherChannel, perform this task:
Command
Step 1
Switch(config)# interface port-channel
port_channel_number
Step 2
Switch(config-if)# ip address ip_address mask
Step 3
Switch(config-if)# end
Step 4
Switch# show running-config interface
port-channel port_channel_number
This example shows how to create port-channel interface 1:
Switch# configure terminal
Switch(config)# interface port-channel 1
Switch(config-if)# ip address 172.32.52.10 255.255.255.0
Switch(config-if)# end
This example shows how to verify the configuration of port-channel interface 1:
Switch# 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
Switch#
Configuring Physical Interfaces as Layer 3 EtherChannels
To configure physical interfaces as Layer 3 EtherChannels, perform this task for each interface:
Command
Step 1
Switch(config)# interface {fastethernet |
gigabitethernet | tengigabitethernet} slot / port
Step 2
Switch(config-if)# no switchport
Step 3
Switch(config-if)# no ip address
Step 4
Switch(config-if)# channel-group port_channel_number
mode {active | on | auto | passive | desirable}
OL-6696-01
Purpose
Creates the port-channel interface. The value for
port_channel_number can range from 1 to 64
Assigns an IP address and subnet mask to the
EtherChannel.
Exits configuration mode.
Verifies the configuration.
Purpose
Selects a physical interface to configure.
Makes this a Layer 3 routed port.
Ensures that there is no IP address assigned to the
physical interface.
Configures the interface in a port-channel and specify
the PAgP or LACP mode.
If you use PAgP, select the keywords auto and
desirable.
If you use LACP, select the keywords active and
passive.
Software Configuration Guide—Release 12.2(25)EW
Configuring EtherChannel
17-7