Intel ES460MSX User Guide - Page 22
Link Aggregation
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C H A P T E R 2 Intel Express 460T Standalone Switch Users Guide Link Aggregation Link aggregation allows you to combine from 2 to 8 (adjacent) ports so that they function as a single high-speed link. For example, link aggregation is useful when making connections between switches or to connect servers to the switch. Link aggregation, sometimes known as port trunking, can be used to increase the bandwidth to some devices. Link aggregation can also provide a redundant link for fault tolerance. If one link in the aggregation fails, the switch balances the traffic among the remaining links. 2 ports aggregated x 100Mbps = 200Mbps link 4 ports aggregated x 100Mbps = 400Mbps link 16 460T Ch2.p65 To aggregate ports, you must link an "anchor" port with an adjacent port. The Express 460T Switch supports up to four link aggregation groups (anchor ports 1, 9, 17) for a 24-port switch and up to three link aggregation groups (anchor ports 1, 9) on a 16-port switch. This includes one link aggregation group for the two 100FX module ports. Guidelines • The switch treats aggregated links as a single port. This includes Spanning Tree and VLANs. • All ports share the same settings as the anchor port. You can change anchor port settings, but you cannot configure other ports in the link. • When a port is configured as a member of an aggregated link, it immediately adopts the characteristics of the anchor port. When a port is no longer a member of an aggregated link, the characteristics are reset to the default settings (autonegotiate speed/duplex, flow control enabled). • If a port is part of an aggregated link, it cannot be configured as the target port for a port mirror. However, a port in an aggregated link can serve as the source port for a port mirror. 16 4/19/00, 4:09 PM