Trunk on fabric-extender dual-connected to a pair of nexus 5010

Unanswered Question
Jul 1st, 2010

Hi
In a fabric-extender dual-connected to a pair of nexus 5010 switches, it is not a problem to configure at trunk port on the fex:

interface Ethernet100/1/22
  description test
  switchport mode trunk
  switchport trunk allowed vlan 40-42,107

but it doesn't seem to switch any traffic. Show commands say ok. Is it because of the vPC uplink from the extender ? Or any other suggestions ?
Thanks

Regards JJ

I have this problem too.
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Ganesh Hariharan Thu, 07/01/2010 - 05:31

Hi
In a fabric-extender dual-connected to a pair of nexus 5010 switches, it is not a problem to configure at trunk port on the fex:

interface Ethernet100/1/22
  description test
  switchport mode trunk
  switchport trunk allowed vlan 40-42,107

but it doesn't seem to switch any traffic. Show commands say ok. Is it because of the vPC uplink from the extender ? Or any other suggestions ?
Thanks

Regards JJ

JJ,

Just check it out also you have only permiitted vlan40-42 and 107,so other vlan traffic will not be switches over the trunk.

Hope to Help !!

Ganesh.H

jjoensen Thu, 07/01/2010 - 05:42

The interface config is the same on both 5010s, the allowed vlans are on both 5010s, but moving an esxi server with IP addresses in the allowed vlans to the port is not a success.

Nexus5010-1# sh vpc consistency-parameters int eth100/1/22

    Legend:
        Type 1 : vPC will be suspended in case of mismatch

Name                        Type  Local Value            Peer Value            
-------------               ----  ---------------------- -----------------------
Allowed VLANs               -     40-42,107              40-42,107            
Local suspended VLANs       -     -                      -

Nexus5010-1# sh int eth100/1/22 switchport
Name: Ethernet100/1/22
  Switchport: Enabled
  Switchport Monitor: Not enabled
  Operational Mode: trunk
  Access Mode VLAN: 1 (default)
  Trunking Native Mode VLAN: 1 (default)
  Trunking VLANs Enabled: 40-42,107
  Administrative private-vlan primary host-association: none
  Administrative private-vlan secondary host-association: none
  Administrative private-vlan primary mapping: none
  Administrative private-vlan secondary mapping: none
  Administrative private-vlan trunk native VLAN: none
  Administrative private-vlan trunk encapsulation: dot1q
  Administrative private-vlan trunk normal VLANs: none
  Administrative private-vlan trunk private VLANs:
  Operational private-vlan: none

Thanks JJ

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