Common Problems With Npv; Moving The Login Of An End Device - Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual

Common Problems with NPV

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
Total number of npv-attached entries = 2
If you need to contact support, enter the show tech-support NPV command and save the output so that
support can use it to troubleshoot, if necessary.
To display a list of the NPV devices that are logged in, along with VSANs, source information, pWWNs,
and FCIDs, enter the show npv flogi-table command.
switch# show npv flogi-table
--------------------------------------------------------------------------------
SERVER
INTERFACE VSAN FCID
--------------------------------------------------------------------------------
fc1/19
fc1/19
fc1/19
fc1/19
Total number of flogi = 4.
Common Problems with NPV
This section includes common NPV issues and includes the following topics:
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Moving the Login of an End Device

If an uplink fails, then all the end devices that were logged in via the failed uplink are logged out. When
the end devices log in again, the login requests are evenly distributed between all the operational uplink
ports.
When a failed uplink comes back up, no existing logins are reassigned to that uplink. New logins are
assigned to the operational uplink that has the least number of logins at the time; this is likely to be the
previously failed uplink that has come back up.
You can move the login of an end device from its existing uplink to the one with least number of logins
by performing the following tasks:
Step 1 Enter the shutdown command on the server interface that needs to be migrated.
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
9-4
1 0xee0008 10:00:00:00:c9:60:e4:9a 20:00:00:00:c9:60:e4:9a fc1/9
1 0xee0009 20:00:00:00:0a:00:00:01 20:00:00:00:c9:60:e4:9a fc1/1
1 0xee000a 20:00:00:00:0a:00:00:02 20:00:00:00:c9:60:e4:9a fc1/9
1 0xee000b 33:33:33:33:33:33:33:33 20:00:00:00:c9:60:e4:9a fc1/1
Moving the Login of an End Device, page 9-4
NPIV Is Not Enabled, page 9-5
VSAN Mismatches, page 9-5
Core NPV Device Is Not a Switch, page 9-6
NPV Core Switch Port Is Down, page 9-6
Server Interface is Down, page 9-6
Waiting on FLOGI from the Server or Target, page 9-7
Waiting on External Link to Come Up, page 9-7
Chapter 9
PORT NAME
Troubleshooting N-Port Virtualization
EXTERNAL
NODE NAME INTERFACE
OL-9285-05