Metro Ethernet, VPLS clarifications
Fabien Delmotte
fdelmotte1 at mac.com
Wed Feb 6 16:21:40 UTC 2013
I thought that PBB was dead :)
if not forget VPLS and play with PBB and PBT :)
Welcome in the "twilight zone"
Fabien
Le 6 févr. 2013 à 16:19, Adam Vitkovsky <adam.vitkovsky at swan.sk> a écrit :
> And for fun you can also do:
> Ethernet over PBB to VPLS
> Ethernet over PBB over VPLS -that's actually called EVPN
>
> adam
> -----Original Message-----
> From: Fabien Delmotte [mailto:fdelmotte1 at mac.com]
> Sent: Wednesday, February 06, 2013 4:07 PM
> To: Scott Helms
> Cc: NANOG; Abzal Sembay
> Subject: Re: Metro Ethernet, VPLS clarifications
>
> Hi,
>
> My 2 cents
>
>> VPLS can be run across several different kinds of layer 1 & 2
>> technologies and is independent of the underlying technology because
>> it builds it pseudo wires at layers 3 & 4. VPLS leverages technologies
>> like Metro Ethernet and MPLS to extend a business' Ethernet LAN
>> (technically the broadcast domain) to remote sites. At the end of the
>> day you can use several kinds of tunneling technologies to provide VPLS,
> including GRE, MPLS, and L2TPv3.
>
> For fun you can also do :
> LDP VPLS over a GRE tunnel
> LDP over a GRE tunnel within an encrypted network
>
> I can be wrong but VPLS is running over MPLS (rfc 4762) because it is using
> LDP
>
> Regards
>
> Fabien
>
>
>
> Le 6 févr. 2013 à 15:41, Scott Helms <khelms at zcorum.com> a écrit :
>
>>>
>>> From my understanding M-Ethernet is a some kind of service.
>>> Standartized technology that allows to connect multiple different
>>> networks. And it is independent from physical and datalink layers.
>>>
>>
>> Metro Ethernet is a datalink (layer 2) protocol. It also has physical
>> (layer 1) specifications though there are several kinds of physical
>> medium that can be used. Most commonly its delivered over fiber
>> (single or multi-mode depending on distance from the last active
>> element) or cat 5E/6 twisted pair.
>>
>>
>>
>>> And nowadays which tecnology is the most used(VPLS or Metro)? What
>>> about MPLS? Sorry I'm a little confused. I really want to understand.
>>>
>>
>> VPLS can be run across several different kinds of layer 1 & 2
>> technologies and is independent of the underlying technology because
>> it builds it pseudo wires at layers 3 & 4. VPLS leverages technologies
>> like Metro Ethernet and MPLS to extend a business' Ethernet LAN
>> (technically the broadcast domain) to remote sites. At the end of the
>> day you can use several kinds of tunneling technologies to provide VPLS,
> including GRE, MPLS, and L2TPv3.
>>
>> Here are the main two RFCs:
>>
>> http://tools.ietf.org/html/rfc4761
>> http://tools.ietf.org/html/rfc4762
>>
>>
>>>
>>>
>>> --
>>> Regards,
>>>
>>> Abzal
>>>
>>>
>>
>>
>> --
>> Scott Helms
>> Vice President of Technology
>> ZCorum
>> (678) 507-5000
>> --------------------------------
>> http://twitter.com/kscotthelms
>> --------------------------------
>
>
>
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