Link Aggregation

Link Aggregation (LAG) bundles multiple physical Ethernet links into a single port-channel for enhanced performance and redundancy.

LAG provides load balancing across physical interfaces and improves reliability. The port-channel stays operational as long as at least one physical interface within the port-channel is operational.

LAG or port-channel

LAG uses various system components such as messaging infrastructure, L2 Protocol Services, Forwarding Services, and Stratum.

Each LAG consists of the following components:

• Links of the same speed
• A MAC address that is different from the MAC addresses of the individual LAG member links.
• An interface index for each link for neighboring devices to identify.
• An administrative key for each link. Only the links with the same administrative key value can be aggregated into a LAG.

NPB application supports Static (manual) LAG.