Configuring Link Aggregation Control Protocol (LACP)
Link Aggregation Control Protocol (LACP) is a standards-based method to control the bundling of several physical network links together to form a logical channel for increased bandwidth and redundancy purposes.
Here is a guide on configuring AMG (510/570) switches with LACP:
Web GUI
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
Switch 1 (Active):
Switch 2 (Passive):
Step 6: To save your configurations at start up on the switch, select Maintenance > Configuration > Save startup-config
Command Line Interface (CLI)
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:
