North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: PPP over SONET
> I've been doing a lot reading the last few days on the advantages of "PPP over > SONET/SDH" vs "IP over ATM AAL5". The available information bandwidth of > roughly 150 Mbps out of 155.5 Mbps with STS-3c/STM-1 makes the PPP over SONET > solution very attractive. Speaking SDH, it's VC4, so payload is 139.264Mbit (STS-3c SPE) > I understand that SONET facilities are widely > deployed throughout the carriers' broadband infrastructures but when will it > become practical to run packet data over these facilities? I am aware that > Cisco is planning to provide an OC-3/STM-1 interface in the 3d quarter but what > about other hardware vendors? > When will carriers be ready to support this service? It's possible today, it's a matter of tariff, any SDH/Sonet network is capable of doing this. > Are multiplexers available or planned for the near future? You can't do subrates, the rest is standard tranmission gear avaliable from a variety of vendors. > Are there carrier-to-carrier issues that need to be worked out? It depends if you are buying this as a circiut within a network or as two half circiuts. If you are obtainging two half-circiuts the two corresponding carriers have to work out the maintenence procedures. --Peter Ps: ATM, what's that? - - - - - - - - - - - - - - - - -
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