Aruba Employee

Re: Using GVRP/MVRP to simplify your network

When running in an environment with only MVRP (like you can do with all the AOSS devices, or later model ProCurve switches with the AOSS 16.xx firmware), the "unknown-vlan block" option does not stop new VLANs from appearing on the switch.

 

Note the "MVRP_100  dynamic" VLAN in the example below.

 

AIS-2920-04(config)# sh vlans

 Status and Counters - VLAN Information

  Maximum VLANs to support : 256
  Primary VLAN : DEFAULT_VLAN
  Management VLAN :

  VLAN ID Name                             | Status     Voice Jumbo
  ------- -------------------------------- + ---------- ----- -----
  1       DEFAULT_VLAN                     | Port-based No    No
  2       Null                             | Port-based No    No
  8       Aruba Instant AIS                | Port-based No    Yes
  10      Platinum-Gold-Sponsors           | Port-based No    No
  11      AIS-Wireless-Delegates           | Port-based No    No
  12      AIS-Wireless-Podium              | Port-based No    No
  13      AIS-Wireless-Sponsors            | Port-based No    No
  100     MVRP_100                         | Dynamic          No
  930     HPE-Roadshow                     | Port-based No    Yes
  931     OOBM                             | Port-based No    No

With MVRP, this is resolved by using "mvrp registration fixed".

 

The following extract is for the port on a 2920 where the unwanted dynamic VLAN was coming from.

AIS-2920-04(config)# sh run int 24

Running configuration:

interface 24
   mvrp registration fixed
   mvrp enable
   untagged vlan 930
   exit

Now the unwanted dynamic VLAN 100 is not appearing on the switch.

 

AIS-2920-04(eth-24)# sh vlans

 Status and Counters - VLAN Information

  Maximum VLANs to support : 256
  Primary VLAN : DEFAULT_VLAN
  Management VLAN :

  VLAN ID Name                             | Status     Voice Jumbo
  ------- -------------------------------- + ---------- ----- -----
  1       DEFAULT_VLAN                     | Port-based No    No
  2       Null                             | Port-based No    No
  8       Aruba Instant AIS                | Port-based No    Yes
  10      Platinum-Gold-Sponsors           | Port-based No    No
  11      AIS-Wireless-Delegates           | Port-based No    No
  12      AIS-Wireless-Podium              | Port-based No    No
  13      AIS-Wireless-Sponsors            | Port-based No    No
  930     HPE-Roadshow                     | Port-based No    Yes
  931     OOBM                             | Port-based No    No

The upstream switch will show matching dynamic VLANs if they are added added here; the "fixed" option only blocks the unknown incoming VLANs.



Richard Litchfield, HPE Aruba
Consulting System Engineer
Network Ambassador