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.vitkov...@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:fdelmot...@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 <khe...@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 >> -------------------------------- > > >
