Link aggregation, which also is called trunking, combines a set of links so that they behave like a single link, which is called a virtual link.
Link aggregation improves network capacity and availability.
The link aggregation standard applies only to full-duplex Ethernet links.
All links in an aggregated group must operate at the same speed.
The link aggregation control protocol automatically groups links and regroups them after a link addition, deletion, or failure.
Product-specific restrictions sometimes govern the way that link segments can be aggregated.
A virtual link must have a MAC address. Some implementations automatically use the smallest MAC address assigned to an aggregation port participating in the virtual link.
The link ...