Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 75

Chapter 5 Troubleshooting SAN Switching Issues
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
Server interface does not come up and "NPV upstream port not available"
message appears
A server port connected to the NPV edge switch does not come online, and the show interface command
indicates a status of NPV upstream port not available.
Possible Cause
The upstream NP_Port(s) and the downstream server F_Port(s) on the NPV edge switch may not be in
the same VSAN.
Example:
switch# sh int fc2/7
fc2/7 is down (NPV upstream port not available)
Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)
Port WWN is 20:47:00:0d:ec:a4:3b:80
Admin port mode is F, trunk mode is off
snmp link state traps are enabled
Port vsan is 99
Receive data field Size is 2112
Solution
•
•
Note
Uneven load balancing on the NPV NP ports
An examination of NP upstream ports that are members in the same VSAN reveals that uneven load
balancing is occurring.
Possible Cause
OL-25300-01
Check the VSAN membership of the upstream port and the server port.
Example:
switch# show vsan membership
vsan 1 interfaces:
fc2/1 fc2/2 fc2/3 fc2/4
fc2/5 fc2/6 san-port-channel 200
vsan 99 interfaces:
fc2/7 fc2/8
In the example above, notice that the upstream ports (fc2/1-2) are in VSAN 1, and the server ports
(fc2/7-8) are in VSAN 99.
Move the NP ports on the NPV edge, and the F ports on the NPIV core into the same VSAN as the
server ports.
Example:
switch(config)# vsan database
switch(config-vsan-db)# vsan 99 interface fc2/1-2
switch(config-if)# vsan database
switch(config-vsan-db)# vsan 99 interface fc1/17-18
Traffic on fc1/17 may be impacted. Do you want to continue? (y/n) y
Traffic on fc1/18 may be impacted. Do you want to continue? (y/n) y
Alternatively, if the NPIV core and NPV edge switch are F_Port Trunking capable switches, then
that would be the recommended configuration.
Cisco Nexus 5000 Series Troubleshooting Guide
NPV
5-3