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4-1

Switch Meshing

Introduction

Switch meshing is a load-balancing technology that enhances reliability and

performance in these ways:

■ Provides significantly better bandwidth utilization than either Spanning

Tree Protocol (MSTP) or standard port trunking.

■ Uses redundant links that remain open to carry traffic, removing any

single point of failure for disabling the network, and allowing quick

responses to individual link failures. This also helps to maximize invest-

ments in ports and cabling.

■ Unlike trunked ports, the ports in a switch mesh can be of different types

and speeds (10 and 100 Mbps, gigabit, and 10 gigabit). For example, a

10Base-FL port and a 1GB port can be included in the same switch mesh.

Figure 4-1. Example of Switch Meshing

Switch 1

(Meshed)

Switch 4

(Meshed)

Switch 3

(Meshed)

Switch 2

(Meshed)

Switch Mesh Domain

The mesh-configured ports in switches 1-4 form a Switch Mesh Domain

Non-Meshed Port

Meshed Port

Node "A"

Node "B"

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