Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 49

Chapter 3 Troubleshooting Layer 2 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 .
<1-3967,4048-4093>
Interface VLAN is down
The interface VLAN is down.
Possible Cause
The VLAN was not created.
Solution
Although VLAN <###> is not yet created, the NX-OS allows the configuration of the interface vlan
<###>. As a result, the interface vlan <###> does not come up. Use the show vlan command to
determine if VLAN <###> exists. If it does not exist, use the vlan <###> command to create the VLAN.
After the VLAN is created, you must bounce the interface VLAN to have it come up.
Example:
switch(config)# interface vlan 600
switch(config-if)# no shutdown
switch(config-if)# show interface vlan 600 brief
-------------------------------------------------------------------------------
Interface Secondary VLAN(Type)
-------------------------------------------------------------------------------
Vlan600
switch(config)# show vlan id 600
VLAN 600 not found in current VLAN database
switch(config-if)# vlan 600
switch(config)# show vlan id 600
VLAN Name
---- -------------------------------- --------- -------------------------------
600
switch(config-if)# interface vlan 600
switch(config-if)# shut
switch(config-if)# no shutdown
switch(config-if)# show interface vlan 600 brief
-------------------------------------------------------------------------------
Interface Secondary VLAN(Type)
-------------------------------------------------------------------------------
Vlan600
Possible Cause
VLAN was suspended by the vPC configuration on the Nexus 5000 pair.
Solution
Show that the vPC consistency parameters are global and make sure that the VLAN was not suspended.
Otherwise, fix the configuration mismatch on the Nexus 5000 pair:
Example:
switch# sh vpc consistency-parameters global
Name
-------------
OL-25300-01
VLAN ID 1-4094 or range(s): 1-5, 10 or 2-5,7-19
--
VLAN0600
--
Legend:
Type 1 : vPC will be suspended in case of mismatch
Status Reason
down
Status Ports
active Po1, Po11, Po30, Po31
Status Reason
up
Type Local Value
---- ---------------------- -----------------------
Cisco Nexus 5000 Series Troubleshooting Guide
other
--
Peer Value
VLANs
3-7