[j-nsp] vpls and virtual switches (vlan-id none) not supported

Keegan Holley keegan.holley at sungard.com
Thu Mar 24 00:06:24 EDT 2011


On Tue, Mar 22, 2011 at 7:28 AM, <jbuesink at jb-internetworking.com> wrote:

> Hi there,
>
> I have the following issue:
>
> switch1--(ciscoPE)-----(MX80)----switch2
>                                              ----switch3
>
> Switch1 is connected to a Cisco PE
> Switch2 and switch 2 are connected to a MX80 in the same bridge domain.
>
> The bridge-domain is configured in the virtual-switch and VPLS is
> activated.
>
> Now the problem is, previously when I did not needed bridging for VPLS
> (and this virtual-switches) I had enabled the command "vlan-id none" under
> the VPLS routing-instance.
>
> This command ensures that packets send over the VPLS cloud have their
> vlan-tag removed.This ensures interop with Cisco.
>
> You shouldn't need to remove the vlan tag for interop with cisco.
 Ethernet, 802.1q and q-in-q are all standards based. Also, I don't think
this command strips vlan tags.  I think it configures the juniper to ignore
them on ingress.


> Now with virtual switches this command is not supported. This means that
> the switches behind the MX have connectiviy but not towards the switch
> behind the Cisco PE.
>

What happens when you trunk the port on the cisco and actually send an
receive frames in vlan 500? Also what does the cisco side say?


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