[c-nsp] Possible to trunk over Serial or DSL?

[Darren O'Connor]

Hi Gert.

Thanks.

Basically what I'm trying to do is run subinterfaces, with each of those
subinterfaces in a separate vrf. So while I can have fa0/1.10 and
fa0/1.20 in different vrfs on the same box, I would like to be able to
do the same over Serial and/or ADSL.   

I have been able to do this with an old Riverstone so technically it
should be possible. 

Thanks

-----Original Message-----
From: Gert Doering [mailto:gert at greenie.muc.de] 
Sent: 09 May 2012 12:47
To: Darren O'Connor
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Possible to trunk over Serial or DSL?

Hi,

On Wed, May 09, 2012 at 12:28:59PM +0100, Darren O'Connor wrote:
> I'm trying to find a possible way to run dot1q tags over serial and/or

> dsl interfaces. I could trunk over E1's on my old Riverstone kit 
> without a problem, but I can't find a way to do it with a Cisco box.
> 
> Is this possible?

Cisco can do *bridging* over E1, which might or might not do dot1q if
tagged packets are coming in via the to-be-bridged LAN interface.  Might
be worth a try :-)

If you want to do routing via those E1s, and have separate "virtual
routers"
(what is dot1q to switches), take a look at either FrameRelay
encapsulation on the E1, or MPLS with VRF/Layer3 VPNs.  Or MPLS with
Layer2 VPNs.

It's a bit unclear what you are trying to achieve...

gert
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Gert Doering - Munich, Germany
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