Brocade Communications Systems 8/80 Service Manual download pdf (Page 56)

ServerIron Switching and Routing Guide

Figure 2.6 Ports with the same key in different aggregate links

Notice that the keys between one device and another do not need to match. The only requirement for key

matching is that all the ports within an aggregate link on a given device must have the same key.

Devices that support multi-slot trunk groups can form multi-slot aggregate links using link aggregation. However,

the link aggregation keys for the groups of ports on each module must match. For example, if you want to allow

link aggregation to form an aggregate link containing ports 1/1 – 1/4 and 3/5 – 3/8, you must change the link

aggregation key on one or both groups of ports so that the key is the same on all eight ports. Figure 2.7 on

page 2-49 shows an example.

Port 1/2

Port 1/4

Port 1/1

Port 1/6

Port 1/3

Port 1/7

Port 1/8

Port 1/5

System ID: 1111.2222.3333

Ports 1/5 - 1/8: Key 69

All these ports have

the same key, but are

in two separate

aggregate links with

two other devices.

System ID: aaaa.bbbb.cccc

Ports 1/1 - 1/8: Key 0

System ID: dddd.eeee.ffff

Ports 1/5 - 1/8: Key 4

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 62

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Brocade Communications Systems 8/80 Service Manual Page 56