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
8-11
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 8 Troubleshooting Ports
Overview of the FC-MAC Driver and the Port Manager
Examples of when to use these commands include:
•
An Fibre Channel port fails to move to the up state after such events as link failures, admin-up
operations, or new connections.
•
Unexpected link flaps.
•
The port moves to “error disabled” state.
Maintain a set of information for the module before these problems occur (if possible) and then gather
another set of information after these problems occur.
Useful Commands at the FC-MAC Level
Troubleshooting a port problem involves analysis of the debug facilities provided by the FC-MAC driver,
or the FC-MAC2 driver in the case of the MDS 9120, MDS 9140, MDS 9216i, and the MPS-14/2
module.
Table 8-2
lists several CLI debugging commands at the FC-MAC level.
Note
You must use the
attach module
CLI command to access these FC-MAC show commands.
Note
Use the
fcmac2
keyword for the MDS 9120, MDS 9140, MDS 9216i, and the MPS-14/2 module.
Table 8-2
Useful FC-MAC Port Commands
CLI Command
Description
show hardware internal fc-mac port
port
link-status
Performs a series of checks to isolate the problem.
show hardware internal fc-mac2 port
port
link-status
show hardware internal fc-mac port
port
port-info
Provides the current state and configuration of the port.
show hardware internal fc-mac2 port
port
port-info
show hardware internal fc-mac port
port
statistics
Gives all non-zero statistics for the port.
show hardware internal fc-mac2 port
port
statistics
show hardware internal fc-mac
port
port
gbic-info
Displays the current state of the SFP.
show hardware internal fc-mac2
port
port
gbic-info
