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

[Adam Vitkovsky]

Hi Pshem,
I see so the "tunnel feature/keyword" basically applies everywhere where the BPDUs have to traverse (or be tunneled through) a native L2 switched network in order to get to the desired device/l2pt endpoint. 

adam
-----Original Message-----
From: Pshem Kowalczyk [mailto:pshem.k at gmail.com] 
Sent: Thursday, October 03, 2013 10:48 AM
To: Adam Vitkovsky
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] VPLS ASR1k - ME3800 - no L2 tunnelling ?

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.j
> pg]
>
> Waris Sagheer
> Technical Marketing Manager
> Service Provider Access Group
> waris at cisco.com<mailto:waris at cisco.com>
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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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