Reference Guide

Create port-channel

You can create up to 128 port-channels, with up to 16 port members per group. Congure a port-channel similarly to a physical interface —

you can enable or congure protocols, or assign access control lists (ACLs) to a port channel. After you enable the port-channel, you can

place it in L2 or L3 mode.

To place the port-channel in L2 mode or congure an IP address to place the port-channel in L3 mode, use the switchport command.

1 Create a port-channel in CONFIGURATION mode.

interface port-channel id-number

2 Ensure that the port-channel is active in PORT-CHANNEL mode.

no shutdown

Create port-channel

OS10(config)# interface port-channel 10

OS10(conf-if-po-10)# no shutdown

Add port member

When you add a port interface to a port-channel:

• The port-channel conguration and administrative status are applied to member interfaces.

• A port-channel operates in either L2 (default) or L3 mode. To place a port-channel in L2 mode, use the switchport mode

command. To place a port-channel in L3 mode and remove L2 conguration before you congure an IP address, use the no

switchport command.

• All interfaces should have the same speed (recommended). Port-channels can contain a mix of 10G and 40G Ethernet interfaces, but

interfaces that are not the same speed as the rst channel member in the port-channel are automatically disabled.

• An interface should not contain any non-default L2/L3 conguration settings — only the description and shutdown or no

shutdowncommands are supported. You cannot add an IP address or a static MAC address to a member interface.

• You cannot enable ow control on a port-channel interface — ow control is supported on physical interfaces that are port-channel

members.

• Port-channels support LACP (802.3ad). LACP identies similarly congured links and dynamically groups ports into a logical channel.

LACP activates the maximum number of compatible ports that the switch supports in a port-channel.

If you globally disable spanning-tree operation, L2 interfaces that are LACP-enabled port-channel members may ap due to packet

loops.

Add port member — static LAG

A static port-channel (LAG) contains member interfaces that you manually assign using the channel-group command.

OS10(config)# interface port-channel 10

Aug 24 4:5:38: %Node.1-Unit.1:PRI:OS10 %dn_ifm

%log-notice:IFM_ASTATE_UP: Interface admin state up.:port-channel10

Aug 24 4:5:38: %Node.1-Unit.1:PRI:OS10 %dn_ifm

%log-notice:IFM_OSTATE_DN: Interface operational state is down.:port-channel10

OS10(conf-if-po-10)# exit

OS10(config)# interface ethernet 1/1/2

OS10(conf-if-eth1/1/2)# channel-group 10

Aug 24 4:5:56: %Node.1-Unit.1:PRI:OS10 %dn_ifm

%log-notice:IFM_OSTATE_UP: Interface operational state is up.:port-channel10

Add port member — dynamic LACP

Interfaces