Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual page 8

Contents
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Troubleshooting Ports
8
C H A P T E R
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
viii
Merge Failure Troubleshooting
Recovering from a Merge Failure with Fabric Manager
Recovering from a Merge Failure with the CLI
Lock Failure Troubleshooting
Resolving Lock Failure Issues Using Fabric Manager
Resolving Lock Failure Issues Using the CLI
System State Inconsistent and Locks Being Held
Clearing Locks Using Fabric Manager
Clearing Locks Using the CLI
Distribution Status Verification
Verifying Distribution Using Fabric Manager
Verifying Distribution Using the CLI
CFS Regions Troubleshooting
Distribution Failure
7-10
Regions for Conditional Service
Changing Regions
7-11
8-1
Overview
8-1
Initial Troubleshooting Checklist
Limitations and Restrictions
Overview of the FC-MAC Driver and the Port Manager
Port Manager Overview
Troubleshooting Port States with the Device Manager
Device View
8-6
Device Manager: Summary View
Device Manager: Port Selection
Device Manager: Port Monitoring
Isolating Port Issues Using Device Manager
Troubleshooting Port States from the CLI
Using Port Debug Commands
Useful Commands at the FC-MAC Level
Isolating Port Issues Using the CLI
Common Problems with Port Interfaces
Port Remains in a Link Failure or Not Connected State
Troubleshooting Port Problems
Port Remains in Initializing State
Troubleshooting Port Registration Issues Using the CLI
Unexpected Link Flapping Occurs
7-5
7-6
7-7
7-8
7-9
7-9
7-9
7-9
7-9
7-9
7-10
7-11
8-1
8-4
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-10
8-11
8-12
8-13
8-15
8-16
8-21
7-6
7-7
8-6
8-13
8-17
OL-9285-05