HP ProCurve 6400cl Series Management And Configuration Manual page 271

the links in a trunk. In actual networking environments, this is rarely a
problem. However, if it becomes a problem, you can use the HP ProCurve
Manager Plus network management software to quickly and easily identify the
sources of heavy traffic (top talkers) and make adjustments to improve
performance.
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 12-12
showing a three-port trunk, traffic could be assigned as shown in table 12-6.
A
1
C
B
2
C
Switch
3
C
C
D
Figure 12-12. Example of Port-Trunked Network
Table 12-6. Example of Link Assignments in a Trunk Group (SA/DA Distribution)
Source: Destination:
Node A Node W
Node B Node X
Node C Node Y
Node D Node Z
Node A Node Y
Node B Node W
Outbound Traffic Distribution Across Trunked Links
W
X
Switch
Y
Z
Link:
1
2
3
1
2
3
Port Trunking
12-27