Primary Troubleshooting Flowchart - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Chapter 1 Troubleshooting Overview
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
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Port group oversubscription is supported on 24-port and 48-port 4-Gbps Fibre Channel switching
Note
modules, the 32-port 2-Gbps Fibre Channel switching module, the Cisco MDS 9120 20-port 1/2-Gbps
Fibre Channel module, and the Cisco MDS 9140 40-port 1/2-Gbps Fibre Channel module.

Primary Troubleshooting Flowchart

The flowchart in
investigation by checking one of the following four areas:
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Figure 1-3
OL-9285-05
Configure (enable or disable restrictions on oversubscription ratios and bandwidth fairness)
Check port group oversubscription (display includes group and ports, port speed, and send and
receive speed and includes possible oversubscription indicators)
Show port resources
Reset the module
Figure 1-3 shows the overall troubleshooting process. Begin any troubleshooting
Physical port issues
Physical switch issues
Fx port issues
Fabric services
Troubleshooting Process Flowchart
Physical port Physical switch
issues
Port state Modules up?
Hardware
Flapping Environment
Analyze link Hardware
events issues?
Software image
Fx port
issues
FLOGI
Power Host HBA
Device HBA
issues
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
Primary Troubleshooting Flowchart
Fabric services
issues
Name server
EISL,
PortChannel
VSAN
Zoning
FSPF
Domain
Manager
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