Subject: [core] about CoAP options for CoAP over TCP

From: "weigengyu" <[email-masked]>
Date: Tue, 28 Apr 2015 15:36:19 +0800

Hi all!

Related to CoAP over TCP, there some drafts: 
1. draft-savolainen-core-coap-websockets-04 propose to transfer CoAP over Web socket. 
While it may be convenient to tranfer CoAP over WEBsocket,  the Websocket is based on HTTP. 
So, the protocol stack is CoAP/WEBsocket/HTTP/TLS(option)/TCP.

2. draft-tschofenig-core-coap-tcp-tls-03 propose to define a new message format to deliver CoAP over TCP.

Is there anybody  to think about CoAP over TCP by defining some CoAP options,
in the same way as HTTP and WEB socket has done. 

Regards,

Gengyu WEI
Network Technology Center
School of Computer 
Beijing University of Posts and Telecommunications