Configuring Link Aggregation Control Protocol (LACP)

Step 1: Start by connecting two switches together by multiple ports which you  would like to link using the Link aggregation control protocol

Step 2: On the left-hand side of the Web GUI select Configuration > Aggregation >  Groups 

Step 3: Here you can select multiple ports to be grouped into one aggregated link  for LACP to be enabled. Once you have selected your ports which you would like to  link together, select the ‘LACP (Active)’ Mode for that group of ports and select save  at the bottom of the page

Step 4: On switch 2, repeat the same as Step 3 for the ports which are connected to switch 1 and select the ‘Mode’ drop down to ‘LACP (Passive)’, then select 'Save' at the bottom of the page

Step 5: To verify your configuration, select Monitor > Aggregation > Status and check if the configured ports and aggregated ports are correct, with the correct LACP mode

Step 6: To save your configurations at start up on the switch, select Maintenance >  Configuration > Save startup-config

Step 1: Start by connecting two switches together by multiple ports which you  would like to link using the Link aggregation control protocol

Step 2: Once you are connected to the command line interface on one switch, enter  configuration mode by entering the command “configure terminal”

configure terminal

Step 3: Enable a link aggregation group by typing the command “interface llag [LinkAggregationGroupNumber]”

interface llag [LinkAggregationGroupNumber]

Step 4: Enter the interfaces of the ports you are going to configure in configuration mode by entering “interface GigabitEthernet [PortNumber]”

interface GigabitEthernet [PortNumber]

Step 5: To assign this port to the link aggregation group and set this link as active, enter the command “aggregation group [GroupNumber] mode active”. Do this on each port interface you would like to group together and exit configuration mode by entering the “exit” command. 

aggregation group [GroupNumber] mode active

exit

Step 6: You can verify your ports are correctly configured by entering the command “show running-config"

show running-config

Step 7: Save your configurations by entering “copy running-config startup-config". This will save your configuration even in the event of the switch being turned off. 

copy running-config startup-config

Step 8: On the second switch, repeat Steps 2 and 3

Step 9: In the configuration of the ports that are being aggregated on Switch 2, enter the command “aggregation group 1 mode passive”. Once you have done this, exit configuration mode by using the “exit” command and repeat Steps 6 and 7

LACP CLI Configuration Example: