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Contents
ix
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Link Initialization Flow 8-23
Viewing Port Counters 8-25
Port Bounces Between Initializing and Offline States 8-26
Troubleshooting ELP Issues Using the CLI 8-27
E Port Bounces Remains Isolated After a Zone Merge 8-28
Troubleshooting E port Isolation using Fabric Manager 8-29
Troubleshooting E port Isolation Using the CLI 8-30
Port Cycles Through Up and Down States 8-31
Port Is in ErrDisabled State 8-31
Verifying the ErrDisable State Using the CLI 8-31
Troubleshooting Fx Port Failure 8-32
Overview of Symptoms 8-32
CHAPTER
9 Troubleshooting N-Port Virtualization 9-1
Overview 9-1
Initial Troubleshooting Checklist 9-2
Limitations and Restrictions 9-2
Common CLI Commands for NPV 9-2
Common Problems with NPV 9-4
Moving the Login of an End Device 9-4
NPIV Is Not Enabled 9-5
VSAN Mismatches 9-5
Core NPV Device Is Not a Switch 9-6
NPV Core Switch Port Is Down 9-6
Server Interface is Down 9-6
Waiting on FLOGI from the Server or Target 9-7
Waiting on External Link to Come Up 9-7
CHAPTER
10 Troubleshooting PortChannels and Trunking 10-1
PortChannel Overview 10-1
Trunking Overview 10-2
Initial Troubleshooting Checklist 10-2
Common Troubleshooting Tools in Fabric Manager 10-2
Common Troubleshooting Commands in the CLI 10-3
PortChannel Issues 10-3
Cannot Configure a PortChannel 10-3
Newly Added Interface Does Not Come Online In a PortChannel 10-4
Configuring Port Channel Modes Using Fabric Manager 10-4
Trunking Issues 10-4
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