5 switch meshing – HP 5400ZL User Manual

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Configuring MST Instance Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Configuring MST Instance Per-Port Parameters . . . . . . . . . . . . . . . . . 4-41

Enabling or Disabling Spanning Tree Operation . . . . . . . . . . . . . . . . . 4-44

Enabling an Entire MST Region at Once or
Exchanging One Region Configuration for Another . . . . . . . . . . 4-44

MSTP VLAN Configuration Enhancement . . . . . . . . . . . . . . . . . . . . . . 4-46

PreConfiguring VLANs in an MST Instance . . . . . . . . . . . . . . . . . 4-47

Configuring MSTP Instances with the VLAN Range Option . . . . 4-48

Operating Notes for the VLAN Configuration Enhancement . . . 4-50

How to Save Your Current Configuration . . . . . . . . . . . . . . . . . . . 4-51

Displaying MSTP Statistics and Configuration

. . . . . . . . . . . . . . . . . 4-53

Displaying Global MSTP Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Displaying Detailed Port Information . . . . . . . . . . . . . . . . . . . . . . 4-56

Displaying Status for a Specific MST Instance . . . . . . . . . . . . . . . 4-57

Displaying the MSTP Configuration . . . . . . . . . . . . . . . . . . . . . . . 4-58

Troubleshooting an MSTP Configuration

. . . . . . . . . . . . . . . . . . . . . . 4-62

Displaying the Change History of Root Bridges . . . . . . . . . . . . . . . . . 4-62

Displaying Debug Counters for All MST Instances . . . . . . . . . . . . . . . 4-65

Displaying Debug Counters for One MST Instance . . . . . . . . . . . . . . 4-66

Displaying Debug Counters for Ports in an MST Instance . . . . . . . . . 4-68

Field Descriptions in MSTP Debug Command Output . . . . . . . . . . . . 4-70

Troubleshooting MSTP Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73

Loop Protection

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74

Configuring Loop Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-75

Viewing Loop Protection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-76

5 Switch Meshing

Contents

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Switch Meshing Fundamentals

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Operating Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Using a Heterogeneous Switch Mesh . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Bringing Up a Switch Mesh Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

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