Users Guide

• 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
LACP enables ports to be dynamically bundled as members of a port-channel. To congure a port for LACP operation, use the channel-
group mode
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
OS10(config)# interface ethernet 1/1/2
OS10(conf-if-eth1/1/2)# channel-group 100 mode active
Minimum links
Congure 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.
• Enter the number of links in a LAG that must be in oper up status in PORT-CHANNEL mode (1 to 32, default 1).
minimum-links number
Congure minimum operationally up links
OS10(config)# interface po 1
OS10(conf-if-po-1)# minimum-links 5
Assign Port Channel IP Address
You can assign an IP address to a port channel and use port channels in L3 routing protocols.
• Congure an IP address and mask on the interface in INTERFACE mode.
ip address ip-address mask [secondary]
– ip-address mask — Specify an IP address in dotted-decimal format (A.B.C.D) and the mask in slash format (/24).
– secondary — Specify the IP address is the interface’s backup IP address. You can congure up to eight secondary IP addresses.
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Interfaces