4.2.2 Link Aggregation 
Link Aggregation Overview 
Link  aggregation  groups  multiple  Ethernet  ports  together  in  parallel  to  act  as  a  single  logical  link. 
Aggregation-enabled devices treat all physical links (ports) in an aggregation group entirely as a single 
logical link (port). Member ports in an aggregation group share egress/ingress traffic load, delivering a 
bandwidth that is multiple of a single physical link. Link aggregation provides redundancy in case one of 
the links fails, thus reliability could be maintained. For network diagram of link aggregation, see below: