[Tsvwg] Future of TCP and SCTP

["Uri Elzur" <[e-mail]>]

1) In the ROI BOF yesterday, a statement has been made that "SCTP is a main
stream Transport protocol" and that RDMA/DDP mapping to SCTP, will encourage
application use of SCTP in the future. 
 
SCTP is not immune from IP packet drops and out-of-order reception, hence,
like TCP a high speed flow-through NIC would either buffer out-of-order
packets (expensive and not scalable at 10 Gbps and beyond) or place data
out-of-order but indicate to ULP in order. (side comment: it seems to be a
discussion on RDMA list, whether SCTP even provides the hints to the
Receiver to enable placement of out-of-order data or buffering is required
in any case)
 
2) TCP = Protocol of the past ??? TSVWG agrees there is value in framing TCP
as evident by admittance of draft-ietf-tsvwg-tcp-ulp-frame-00. However, a
single bit in the TCP header or a TCP option, that could have been used to
make it simple, are "reserved for future use"
 
What is the future direction for TCP? Isn't SCTP the future?
 
Sorry if I missed something
 
thx
 
Uri