[c-nsp] VPLS ASR1k - ME3800 - no L2 tunnelling ?

[Pshem Kowalczyk]

Hi Adam,

With 'forward' the ethernet packets are forwarded 'as-is' through the
MPLS topology. With 'tunnel' the destination MAC address gets
rewritten to a 'special'  multicast MAC addresses, the remote end of
the 'tunnel' restores the original MAC address.

Forward can be used if both customer devices are connected directly to
PEs, if one side connects to a L2 only devices you have to use tunnel.

kind regards
Pshem


On 3 October 2013 21:23, Adam Vitkovsky <adam.vitkovsky at swan.sk> wrote:
> Hi Waris,
> So on ME3800 I read the l2pt tunnel is not supported on EFPs with
> PW/xconnect configured on them, though IOS will let you enter the command
> with no complains.
> So to work around this I should be using l2pt forward instead right?
>
> Is there actually a difference in function of these two commands please?
>
>
> adam
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Waris Sagheer (waris)
> Sent: Wednesday, October 02, 2013 6:29 PM
> To: Chris Russell; cisco-nsp at puck.nether.net
> Cc: Mostafa Mansour (mosmanso)
> Subject: Re: [c-nsp] VPLS ASR1k - ME3800 - no L2 tunnelling ?
>
> Hi Mostafa,
> Can you help with ASR1K L2PT behavior? What is supported on ASR1K?
>
> Hi Chris,
> I am copying Mostafa (ASR 1K expert) to confirm the L2PT behavior on ASR1K.
> Just a side note from ME perspective, I would recommend using L2PT forward
> command rather than L2PT tunnel.
>
> Best Regards,
>
> [http://www.cisco.com/web/europe/images/email/signature/horizontal06.jpg]
>
> Waris Sagheer
> Technical Marketing Manager
> Service Provider Access Group
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> From: Chris Russell <chris at nifry.com<mailto:chris at nifry.com>>
> Organization: ntech
> Date: Saturday, August 31, 2013 6:18 AM
> To: "cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>"
> <cisco-nsp at puck.nether.net<mailto:cisco-nsp at puck.nether.net>>
> Subject: Re: [c-nsp] VPLS ASR1k - ME3800 - no L2 tunnelling ?
>
> On 21/08/2013 10:00, Chris Russell wrote:
> On 21/08/2013 09:54, Adam Vitkovsky wrote:
> And I assume no BPDUs are passed either.
> Is it possible to issue cmd: "l2protocol peer" or all the l2protocol
> commands are rejected altogether?
> Just to see if the L2protocol status changes somehow.
>
>
>   As a final thread closing to this one, with thanks to various people,
> especially Adam, who responded -
>
>   L2 tunnelling of control packets (BPDUs) is NOT supported on the ASR1K.
>
>
>
> Thanks
>
> Chris
>
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