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If you associate a LAN/SFP+ port to a link-id for which a LACP logical interface does not exist, the LACP logical interface is
newly generated.
If the associated LAN/SFP+ port is no longer present because it was removed from the LACP logical interface, the LACP
logical interface is deleted.
Up to twenty LAN/SFP+ port units can be associated with one LACP logical interface.
If up to eight associated LAN/SFP+ ports are combined into an LACP logical interface, they are immediately combined into the
LACP logical interface; ports in excess of eight are standby ports used in case of a malfunction.
LAN/SFP+ port whose communication mode is half duplex do not support LACP link aggregation. (They can be assigned, but
do not function as LACP link aggregation.)
If LAN/SFP+ port with different communication speeds are assigned to the same LACP logical interface, the operation depends
on the settings for different-speed link aggregation. See the lacp multi-speed command for details.
If a LAN/SFP+ port is to be associated with an already-existing LACP logical interface, all of the following settings must
match between the LAN/SFP+ port and the LACP logical interface. If the settings differ, an error occurs.
Setting of VLAN
Set QoS trust mode (including default CoS value and port priority)
If a LACP logical interface is newly generated, the above settings of the LAN/SFP+ port are set to the default settings of the
LACP logical interface.
If a LAN/SFP+ port is associated with an LACP logical interface, the MSTP settings return to the default values.
The MSTP settings also return to the default values if the LAN/SFP+ port is removed from the LACP logical interface.
It is not possible to associate a single LAN/SFP+ port with multiple logical interface units.
You must use the "no" syntax to first remove it before associating it with a different logical interface.
[Example]
Associate LAN port #1 in ACTIVE mode with LACP logical interface #10.
SWP2(config)#interface port1.1
SWP2(config-if)#channel-group 10 mode active
5.2.4 Show LACP logical interface status
[Syntax]
show etherchannel [ifname]
[Parameter]
ifname : Interface name of the LAN/SFP+ port
Interfaces that make up the LACP logical interface
[Input mode]
unprivileged EXEC mode, priviledged EXEC mode
[Description]
If ifname is omitted, shows the status of the LACP logical interface.
The following items are shown for each LACP logical interface that exists.
LACP logical interface name
Load balance function rules
Interface name of associated LAN/SFP+ port
For details on the load balance function rules, refer to the type parameter of the port-channel load-balance command.
If ifname is specified, shows the status of the LAN/SFP+ port that make up the LACP logical interface.
The following items are shown.
Item Description
Etherchannel portN.N LAN/SFP+ port name
Physical admin key
Key that identifies physical characteristics (created from
bandwidth, duplex, mru, and VLAN structure)
Receive machine state
Status of the LACP protocol Receive machine transition
variable
"Invalid"
Command Reference | Interface control | 129