Deployment Guide

When more than one interface is added to a Layer 2-port channel, the system selects one of the active interfaces in the port channel to be
the primary port. The primary port replies to ooding and sends protocol data units (PDUs). An asterisk in the show interfaces
port-channel brief command indicates the primary port.
As soon as a physical interface is added to a port channel, the properties of the port channel determine the properties of the physical
interface. The conguration and status of the port channel are also applied to the physical interfaces within the port channel. For example,
if the port channel is in Layer 2 mode, you cannot add an IP address or a static MAC address to an interface that is part of that port
channel.
In the following example, interface GigabitEthernet 1/6 is part of port channel 1, which is in Layer 2 mode, and an error message appeared
when an IP address was congured.
Dell(conf-if-po-1)#show config
!
interface Port-channel 1
no ip address
channel-member TenGigabitEthernet 0/16
shutdown
Dell(conf-if-po-1)#
Dell(conf-if-po-1)#int tengig 1/6
Dell(conf-if)#ip address 10.56.4.4 /24
% Error: Te 1/6 Port is part of a LAG.
Dell(conf-if)#
Reassigning an Interface to a New Port Channel
An interface can be a member of only one port channel. If the interface is a member of a port channel, remove it from the rst port channel
and then add it to the second port channel.
To reassign an interface to a new port channel, use the following commands.
1 Remove the interface from the rst port channel.
INTERFACE PORT-CHANNEL mode
no channel-member interface
2 Change to the second port channel INTERFACE mode.
INTERFACE PORT-CHANNEL mode
interface port-channel id number
3 Add the interface to the second port channel.
INTERFACE PORT-CHANNEL mode
channel-member interface
Example of Moving an Interface to a New Port Channel
The following example shows moving the TenGigabitEthernet 1/8 interface from port channel 4 to port channel 3.
Dell(conf-if-po-1)#show config
!
interface Port-channel 1
no ip address
channel-member TenGigabitEthernet 0/16
shutdown
Dell(conf-if-po-1)#no chann tengig 1/8
Dell(conf-if-po-1)#int port 5
Dell(conf-if-po-5)#channel tengig 1/8
Dell(conf-if-po-5)#show conf
!
interface Port-channel 5
no ip address
channel-member TenGigabitEthernet 1/8
Interfaces
365