Preview Tool

Cisco Bug: CSCuo85619 - N5K/N6K/N2K Layer2 Config Guide for PVLAN on FEX Trunk Port is Unclear

Last Modified

Mar 22, 2017

Products (8)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5672UP Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch

Known Affected Releases


Description (partial)

The Layer2 configuration guide for PVLAN on FEX Trunk ports is unclear on when the 'system private-vlan fex trunk' command is needed.

When extending PVLAN's on a normal .1q trunk on FEX HIF ports the 'system private-vlan fex trunk' is needed.

     N5K(config)# feature private vlan
     N5K(config)# vlan 2
     N5K(config-vlan)# private-vlan primary
     N5K(config-vlan)# private-vlan association 3,4
     N5K(config-vlan)# vlan 3
     N5K(config-vlan)# private-vlan isolated
     N5K(config-vlan)# vlan 4
     N5K(config-vlan)# private-vlan community
     N5K(config-vlan)# system private-vlan fex trunk
     N5K(config-vlan)# interface ethernet 103/1/2
     N5K(config-if)# switchport
     N5K(config-if)# switchport mode trunk
     N5K(config-if)# switchport trunk allowed vlan 1,2,3,4
     N5K(config-if)# no shut
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.