RE: Metro Ethernet, VPLS clarifications

[Adam Vitkovsky <adam.vitkovsky () swan sk>]

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 () 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 () 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
> --------------------------------