North American Network Operators Group

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  • From: Camil Samaha/TEIR/Thomson
  • Date: Mon May 20 11:41:23 1996

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.  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?  Are multiplexers available or planned for the near future?  Are there 
carrier-to-carrier issues that need to be worked out?  Any information on this 
subject is very much appreciated.
Thank you.


Camil Samaha
Senior Network Engineer
Thomson Electronic Information Resources
[email protected]
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