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4-2
Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 4 Troubleshooting Switch Fabric Level Issues
Troubleshooting Name Server Issues
• Port Identifier
• Port Name
• Node Name
• Port Symbolic Name
• Node Symbolic Name
• Class of Service
• FC-4 Type(s)
• Port IP Addresses
• Node IP Addresses
• Hard Address
• FC-4 Descriptor
• FC-4 Features
• Initial Process Associator
Nx Port Registration Problems
To troubleshoot port registration, follow these steps:
Step 1 From the CLI exec mode, enter the following command:
show interface fcx/x
This ensures that the fibre channel (FC) interface connected to the device in question is up and free of
any errors.
The system output might look like this:
switch# show int fc3/14
fc3/14 is up
Hardware is Fibre Channel
Port WWN is 20:8e:00:05:30:00:86:9e
Admin port mode is FX
Port mode is F, FCID is 0x780200 /* Operational State of the Port */
Port vsan is 99 /* This is the vsan */
Speed is 2 Gbps
Receive B2B Credit is 16
Receive data field size is 2112
Beacon is turned off
5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec
5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec
1700 frames input, 106008 bytes, 0 discards
0 CRC, 0 unknown class
0 too long, 0 too short
2904 frames output, 364744 bytes, 0 discards
0 input OLS, 0 LRR, 0 NOS, 0 loop inits
1 output OLS, 1 LRR, 0 NOS, 0 loop inits
If the interface is not working correctly, check the cabling and the host or storage device interface for
faults. If the interface is working correctly, proceed to the next step.
Step 2 Verify that the device in question appears in the FLOGI database. To do this, enter the following
command:
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