Reference Guide

384 | Interfaces
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To configure a port channel, use these commands in the following sequence, starting in the
CONFIGURATION mode:
The port channel is now enabled and you can place the port channel in Layer 2 or Layer 3 mode. Use the
switchport command to place the port channel in Layer 2 mode or configure an IP address to place the port
channel in Layer 3 mode.
You can configure a port channel as you would a physical interface by enabling or configuring protocols or
assigning access control lists.
Add a physical interface to a port channel
The physical interfaces in a port channel can be on any line card in the chassis, but must be the same
physical type.
You can add any physical interface to a port channel if the interface configuration is minimal. Only the
following commands can be configured on an interface if it is a member of a port channel:
•
description
•
shutdown/no shutdown
• mtu
• ip mtu (if the interface is on a Jumbo-enabled by default.)
To view the interface’s configuration, enter the INTERFACE mode for that interface and enter the
show
config
command or from the EXEC Privilege mode, enter the show running-config interface interface
command.
When an interface is added to a port channel, FTOS recalculates the hash algorithm.
Step Command Syntax Command Mode Purpose
1
interface port-channel id-number CONFIGURATION Create a port channel.
2
no shutdown
INTERFACE
PORT-CHANNEL
Ensure that the port channel is active.
Note: Port channels can contain a mix of Gigabit Ethernet and 10/100/1000 Ethernet interfaces, but FTOS
disables the interfaces that are not the same speed of the first channel member in the port channel (see
10/100/1000 Mbps interfaces in port channels).
Note: The Z9000 supports jumbo frames by default (the default maximum transmission unit (MTU) is
12000 bytes) You can configure the MTU using the
mtu command from INTERFACE mode.