Profile for Datagram Congestion Control Protocol (DCCP) Congestion ID 4: TCP-Friendly Rate Control for Small Packets (TFRC-SP)
Sally Floyd, Eddie Kohler · 2009
This document specifies a profile for Congestion Control Identifier 4, the small-packet variant of TCP-Friendly Rate Control (TFRC), in the Datagram Congestion Control Protocol (DCCP).CCID 4 is for experimental use, and uses TFRC-SP (RFC 4828), a variant of TFRC designed for applications that send small packets.CCID 4 is considered experimental because TFRC-SP is itself experimental, and is not proposed for widespread deployment in the global Internet at this time.The goal for TFRC-SP is to achieve roughly the same bandwidth in bits per second (bps) as a TCP flow using packets of up to 1500 bytes but experiencing the same level of congestion.CCID 4 is for use for senders that send small packets and would like a TCPfriendly sending rate, possibly with Explicit Congestion Notification (ECN), while minimizing abrupt rate changes. Status of This MemoThis memo defines an Experimental Protocol for the Internet community.It does not specify an Internet standard of any kind.Discussion and suggestions for improvement are requested.Distribution of this memo is unlimited.