Connectivity Guide

Create port-channel
You can create a maximum of 128 port-channels, with up to 32 port members per group. Congure a port-channel similarly to a physical
interface, enable or congure protocols, or ACLs to a port channel. After you enable the port-channel, 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.
• Create a port-channel in CONFIGURATION mode.
interface port-channel id-number
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 conguration 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 conguration before you congure an IP address, use the no
switchport
command.
• All interfaces must have the same speed.
• An interface must not contain non-default L2/L3 conguration settings. Only the description and shutdown or no
shutdown
commands are supported. You cannot add an IP address or static MAC address to a member interface.
• You cannot enable ow 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 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 a 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 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 congure 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 conguration settings.
OS10(config)# interface port-channel 100
OS10(conf-if-po-10)# exit
Interfaces
91