In today's article, we will learn about LACP. The full meaning of LACP is Link Aggregation Control Protocol (LACP). LACP is a standard protocol used to extend multiple physical links into a single link. It is called EtherChannel. LACP provides automatic configuration and bundled links. LACP is necessary when a port is out of capacity. Then one more port is physically up and the capacity is increased by combining the 2 ports together.
LACP supports two modes Active and passive. Active mode initiates the negotiation by sending an LACP packet to the connected device, while the passive mode waits for the other end to initiate the negotiations. It is configured in Active mode on Cisco Nexus series switches by default. If you want to change it then follow the configuration below.
LACP Mode Change:
switch# configure terminal
switch# interface Ethernet1/2
switch(config-if)# lacp mode {Active | passive}
LACP Configure on Cisco Nexus Series:
Step 1: First You need to enable LACP Feature.
switch# configure terminal
switch(config)# feature lacp
Step 2: Then Create an EtherChannel.
switch# configure terminal
switch(config)# interface port-channel 2
Step 3: Then Configure the member of interfaces.
switch(config)#
switch(config)# interface ethernet 1/2
switch(config-if)# channel-group 2 mode active
switch(config-if)# exit
switch(config)# interface ethernet 1/3
switch(config-if)# channel-group 2 mode active
switch(config-if)# exit
Step 3: Verify the configuration.
switch# show lacp neighbor
switch# show port-channel summary
Conclusion:
LACP is an important protocol for aggregating multiple links into a single logical link. So today we learned how to configure lacp on the Cisco nexus 3000 Series Switch. Hope everyone understands. If anyone doesn't understand then comment. Thanks.