Users Guide

Create port-channel
OS10(config)# interface port-channel 10
Add port member
When you add an interface to a port-channel:
● The administrative status applies to the port-channel.
● The port-channel configuration is applied to the 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 configuration before you configure an IP address, use the no
switchport command.
● All interfaces must have the same speed.
● An interface must not contain non-default L2/L3 configuration settings. Only the description and shutdown or no
shutdowncommands are supported. You cannot add an IP address or static MAC address to a member interface.
● You cannot enable flow control on a port-channel interface. Flow control is supported on physical interfaces that are
port-channel members.
● Port-channels support 802.3ad LACP. LACP identifies similarly configured 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 a spanning-tree operation, L2 interfaces that are LACP-enabled port-channel members may flap 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 mode on
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 mode on
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
LACP enables ports to dynamically bundle as members of a port-channel. To configure a port for LACP operation, use the
channel-group mode {active|passive} command. Active and Passive modes allow LACP to negotiate between ports
to determine if they can form a port channel based on their configuration settings.
OS10(config)# interface port-channel 100
OS10(conf-if-po-100)# exit
OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/2)# channel-group 100 mode active
Minimum links
Configure minimum links in a port-channel LAG that must be in oper up status to consider the port-channel to be in oper up
status.
NOTE:
If the minimum links criteria that you have configured is not met, the port channel operationally goes down only in the
device in which you have configured the minimum links and not on the device at the other side of the port channel.
Interfaces 259