ES2446-51
14
4.1.4
Aggregation
Port trunk allows multiple links to be bundled together and act as a single physical
link for increased throughput. It provides load balancing, and redundancy of links in a
switched inter-network. Actually, the link does not have an inherent total bandwidth
equal to the sum of its component physical links. Traffic in a trunk is distributed
across an individual link within the trunk in a deterministic method that called a hash
algorithm. The hash algorithm automatically applies load balancing to the ports in
the trunk. A port failure within the trunk group causes the network traffic to be
directed to the remaining ports. Load balancing is maintained whenever a link in a
trunk is lost or returned to service.
Aggregation / Trunking Configuration
To assign the ports to a trunk, click the required trunk number ports, then click
Apply.
Below example figure show Port 3 and 4 are the member ports of the Trunk Group 1.
4.1.5
LACP
IEEE 802.3ad Link Aggregation Control Protocol (LACP) increases bandwidth by
automatically aggregating several physical links together as a logical trunk and
providing load balancing and fault tolerance for uplink connections. Once the port is
configured as Static Aggregation port, the area will become gray. It means a port can
only be the member of the Aggregation or LACP.
