Planning a Network with EtherSpeedII Switch Modules

MultiLink Trunking

MultiLink Trunking (MLT) allows up to four physical connections for the same media type and speed to be grouped and treated as a single logical link. MLT improves performance between two switches or between a switch and a server. Ports in a single MLT group can span multiple modules.

MLT allows data to be carried over multiple 100 Mb/s full-duplex links connected to the same device, thus improving performance. Figure 2-7 shows that connecting multiple BayStack 450 ports into an EtherSpeedII 10/100BASE-T switch module allows the data load to be shared across multiple ports and multiple boards, improving overall performance. The ability to load share across multiple ports and multiple boards is commonly referred to as distributed MLT.

Centillion 100 Chassis

BayStack 450-24T

100 Mb/s

100 Mb/s

MLT

connection

9472EA

Figure 2-7. MultiLink Trunking Example

207344-B

2-9

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Nortel Networks 207344-B manual MultiLink Trunking Example