LACP (802.3ad) configuration on Peplink Switch
LACP is part of the IEEE specification 802.3ad and allows you to bundle several physical ports to form a single logical channel.
Bundling multiple physical ports into a single logical link allows you to increase throughput beyond the limitations of a single connection and provides redundancy in case one link goes down.
Before you start
LACP configuration is supported when the switch is configured through the Switch’s Web UI or when it is managed by InControl.
After adding the switch to InControl check the device Configuration in the InControl settings, depending if you want to configure your switch thorugh InControl or through teh local web interface…
LACP configuration through the Web Admin Interface
Log on to the switch’s Web Admin Interface.
Go to Configure > Switch Ports
In this example, we will combine ports 9, 10, 11 and 12 into 1 aggregated port group.
Click on the ports themselves to select all 4 ports.
Once the ports are selected you can change the port settings (name, PoE, Speed, Type VLAN networks and Frame type) as you would with any single port.
RSTP (Rapid Spanning-Tree Protocol) is enabled by default for aggregated ports.
Save the changes and click on Apply Changes to make the changes effective.
When you now look at the port list in the Configure > Switch Ports screen you see that ports 9 to 12 have been aggregated.
LACP configuration through InControl
After logging on to InControl browse to the device details of the switch.
In this example, we will combine ports 13, 14, 15 and 16 into 1 aggregated port group.
Click on one of the ports to go to view the port details.
Select the ports that you want to aggregate (you’ll see a tickbox) and click on “edit”.
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Select all ports that you want to aggregate and tick the Link Aggregation box.
Select Active or Passive mode.
Active mode – the device immediately sends LACP messages (LACP PDUs) when the port comes up
Passive mode – Places a port into a passive negotiating state, in which the port only responds to LACP PDUs it receives but does not initiate LACP negotiation
If both sides are configured as active, LAG can be formed assuming successful negotiation of the other parameters.
If one side is configured as active and the other one as passive, LAG can be formed as the passive port will respond to the LACP PDUs received from the active side.
If both sides are passive, LACP will fail to negotiate the bundle.
Once the ports are selected you can change the port settings (name, PoE, Speed, Type VLAN networks and Frame type) as you would with any single port.
RSTP (Rapid Spanning-Tree Protocol) is supported and enabled by default for aggregated ports.