Link Aggregation is used to increase the available bandwidth between the firewall and a switch by aggregating up to four interfaces into a single aggregate link, referred to as a Link Aggregation Group (LAG). All ports in an aggregate link must be connected to the same switch. This feature is useful for high end deployments requiring more than 1 Gbps throughput for traffic flowing between two interfaces. 3ad is an IEEE specification that allows combining multiple physical ports into one logical port. While there are many approaches, this article. An aggregation switch is a network device that consolidates traffic from multiple access switches, wireless access points, or other edge devices and forwards it to core switches or routers.
