Cisco Nexus 9000 Series - Troubleshooting VLAN Issues; You Cannot Create a VLAN; You Cannot Create a PVLAN; The VLAN Interface Is down

DoneChecklist
Verify the physical connectivity for any problem ports or VLANs.
Verify that you have both end devices in the same VLAN.
The following CLI commands are used to display VLAN information:
•
show vlan vlan-id
•
show vlan all-ports
•
show tech-support vlan
•
show vlan private-vlan [type]
•
show interface vlan vlan-id private-vlan mapping
Troubleshooting VLAN Issues
You Cannot Create a VLAN
You may have a problem when creating a VLAN.
SolutionPossible CauseSymptom
VLANs 3968 to 4047 and 4094 are reserved for
internal use; you cannot change or use these
reserved VLANs.
You are using a reserved VLAN ID.You cannot create a
VLAN
You Cannot Create a PVLAN
You may experience issues when creating a private VLAN (PVLAN).
SolutionPossible CauseSymptom
Use the feature private-vlan command to
enable the PVLAN feature.
The PVLAN feature is not enabled.You cannot create a
PVLAN.
The VLAN Interface is Down
You might have a problem when configuring VLAN interfaces.
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
53
Troubleshooting VLANs
Troubleshooting VLAN Issues