Subject: [PWE3] Dose PWE3 support TDM over Ethernet?

From: "Rong Gao" <[email-masked]>
Date: Thu, 24 Nov 2005 13:14:38 +0800

Dear Colleague,

    I am a R&D Engineer in R&D Department at GW Technologies Co., Ltd. in Beijing. We are working over TDM over Ethernet and have already designed some products. We are interested in the emulation service of TDM what PWE3 has defined, but have some questions.

    The draft of TDM over IP says that the PSN which carries the emulated service could be pure Ethernet:
   "Despite its name, the TDMoIP(R) protocol here in described may operate over several types of PSN, including UDP over IPv4 or IPv6, MPLS, L2TPv3 over IP, or pure Ethernet."
   (draft-ietf-pwe3-tdmoip-04.txt)

     However, there is no RFC which shows clearly that we could take Ethernet as the underlying PSN. 
   "It discusses the emulation of services such as Frame Relay, ATM, Ethernet, TDM, and SONET/SDH over packet switched networks (PSNs) using IP or MPLS."
   (RFC 3985) 

     Dose this means that PWE3 dose not support the TDM emulation over Ethernet?

     Appreciate if you could reply this mail.

     Best Regards.

Rong Gao
R&D Engineer
GW Technologies Co., Ltd.
Tel:(86-10)62961177-359
Add:No.38 Shangdi Xilu, Haidian District, Beijing
P.C.:100085
E-mail:[email-masked]
http://www.gwtt.com

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