System information

12-23

Port Trunking

Port Status and Configuration

Broadcasts, multicasts, and floods from different source addresses are dis-

tributed evenly across the links. As links are added or deleted, the switch

redistributes traffic across the trunk group. For example, in figure 12-9 show-

ing a three-port trunk, traffic could be assigned as shown in table 12-6.

Figure 12-9. Example of Port-Trunked Network

Table 12-6. Example of Link Assignments in a Trunk Group (SA/DA Distribution)

Source: Destination: Link:

Node A Node W 1

Node B Node X 2

Node C Node Y 3

Node D Node Z 1

Node A Node Y 2

Node B Node W 3

Switch Switch