Link Aggregation allows administrators to assign multiple physical links to one logical link. This logical link functions as a single, higher-speed link, providing dramatically increased bandwidth.
(switch(config)#) Create and configure the LAG interface:
interface lag LAG
no shutdown
lacp mode active
(switch(config)#) Associate member links with the LAG interface:
interface IFACE
no shutdown
lag LAG
(switch(config)#)
show lacp <interfaces|aggregates|configuration>
(switch(config)#)
show interface lag1
Example output:
Aggregate-name lag1
Aggregated-interfaces : 1/1/1 1/1/4
Aggregation-key : 1
Aggregate mode : active
Speed 0 Mb/s
qos trust none
qos queue-profile default
qos schedule-profile default
RX
TX
409 input packets
0 input error
0 CRC/FCS
530 output packets
0 input error
0 collision
47808 bytes
0 dropped
56975 bytes
0 dropped
(switch(config)#)
show lacp interfaces
Example output:
State abbreviations :
A - Active P - Passive
S - Short-timeout L - Long-timeout N - InSync O - OutofSync
C - Collecting D - Distributing
X - State m/c expired E - Default neighbor state
Actor details of all interfaces:
------------------------------------------------------------------------------
Intf Aggregate Port Port State System-id System Aggr
name id Priority Priority Key
------------------------------------------------------------------------------
1/1/1lag1 59 1 ALFOE 70:72:cf:4d:bb:53 65534 1
1/1/4lag1 41 1 ALFOE 70:72:cf:4d:bb:53 65534 1
Partner details of all interfaces:
------------------------------------------------------------------------------
Intf Aggregate Partner Port State System-id System Aggr
name Port-id Priority Priority Key
------------------------------------------------------------------------------
1/1/1lag1 0 65534 PLFOEX 00:00:00:00:00:00 65534 0
1/1/4lag1 0 65534 PLFOEX 00:00:00:00:00:00 65534 0
(switch(config)#)
show lacp aggregates
Example output:
Aggregate-name : lag1
Aggregated-interfaces : 1/1/1 1/1/4
Heartbeat rate : slow
Aggregate mode : active
F - Aggregable I - Individual