EXP Computer S200 manual Stpe Parameter Setting Considerations, Example of a, Bridge Network

	Spanning Tree Protocol Entity (STPE)
STPE Parameter Setting Considerations
Introduction
	This section discusses how the bridge and bridge link parameters can be used to
	influence the design of a bridge network and to show how they relate to overall
	PathBuilder S200 series switch configuration during spanning tree operation.

Note

You should thoroughly understand the spanning tree protocol and how its parameters influence performance before you consider changing SPTE-related these parameters in a PathBuilder S200 series switch network. Otherwise, because of the critical nature of the timers involved, the spanning tree topology may become unstable. It may become difficult to trace this behavior as the effect might occur only occasionally and only in certain types of traffic patterns.

Example of a	Figure 43 shows a bridge network composed of six PathBuilder S200 series switches
Bridge Network	and five LANs. The links that are in the blocking state have been selected to achieve
With Spanning Tree the shortest path for the bulk of the expected data flow.
	Bridge 1 MAC Address:
	0F-00-3E-00-10-50				08-00-3E-00-10-60
	LAN 1	1		5		1
			Bridge 1		Bridge 2		LAN 2

6	7
08-00-3E-00-20-30	08-00-3E-00-20-40

LAN 3	1	Bridge 3	8	Bridge 4	1	LAN 4
			9	10

Bridge 5

Bridge 6

08-00-3E-00-30-10

1

LAN 5

1

08-00-3E-00-30-20

Figure 43. Example of a Bridge Network

Bridging 89

T0008-16F Release 5.2M