Nexus 7706 and Number of mappings on private-vlan trunk port is limited to 16

[nssnas189]

Hello everybody,

we are running a nexus 7706 with release 6.2(16) in our data centers and we are using for our and customer's applications PVLANs. Now we can not mapp more than 16 secondary pvlans and get the error-output - mentioned in title of this discusion.

Here the intterface config:

interface port-channel2
  description vPC 2 FW-DMZ
  switchport mode private-vlan trunk promiscuous
  switchport trunk allowed vlan none
  spanning-tree port type edge trunk
  spanning-tree guard root
  switchport private-vlan mapping trunk 1400 1401-1409,1499 <======== customer's Apps
  switchport private-vlan mapping trunk 300 301-304,306 <======== our internal Apps
  vpc 2

For the next future we are planning an upgrade to release 8.2(1), so i want to ask if in this release the limitation of pvlan-mapping is being adopted to higher max number? If not what is the solution?

Thank you

[Andrea Testino]

Hi,

You can view the PVLAN limits in the Nexus 7000 Verified Scalability Guide - The number of PVLAN mappings per promiscous trunks goes up to 128 on non-vPC interfaces in 8.0(1) versus the 16 limit in previous releases.

Hope this helps!

- Andrea

[nssnas189]

Thx Andrea,

yes I've got it with this limitation. Even 128 (on non vPC Interface) in release 8 is not enough :-( and we have a vPC Port-Channel to the firewall (carrying 2 primary pvlans + 4 private secondary pvlans mapped with the 1st primary pvlan and 12 private secondary pvlans mapped with the 2nd primary pvlan + other normal/standard vlans).

Is there other solution?

regards