Troubleshooting Port Registration Issues Using The Cli - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Chapter 8 Troubleshooting Ports
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 Port Registration Issues Using the CLI

To troubleshoot Nx port registration in the CLI, follow these steps:
Step 1 Use the show interface fc slot/port command and verify that the fibre channel interface connected to the
device in question is up and free of any errors. (See
Example 8-3
switch# show interface fc3/14
fc3/14 is up
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.
Verify that the device in question appears in the FLOGI database. To do this, enter the following
Step 2
command:
show flogi database vsan vsan-id
The system output might look like this:
switch# show flogi database vsan 99
---------------------------------------------------------------------------
INTERFACE
---------------------------------------------------------------------------
fc3/14
If the device in question appears in this output, skip to
go to the next step.
Step 3 Use the shutdown command in interface configuration mode to shut down the Fibre Channel interface
connected to the device in question.
switch# config terminal
switch(config)# interface fcx/x
switch(config-if)# shutdown
Note
OL-9285-05
show interface Command Output
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
VSAN FCID
99 0x780200
We recommend that you do not disable and then enable a T or TE port. This would affect all the
VSANs crossing the EISL instead of just the VSAN experiencing the problem.
Example
PORT NAME
21:00:00:e0:8b:07:a4:36
Step
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
Common Problems with Port Interfaces
8-3.)
NODE NAME
20:00:00:e0:8b:07:a4:36
7. If the device does not appear in the output,
8-17