@misc{rfc4828, series = {Request for Comments}, number = 4828, howpublished = {RFC 4828}, publisher = {RFC Editor}, doi = {10.17487/RFC4828}, url = {https://www.rfc-editor.org/info/rfc4828}, author = {Eddie Kohler and Sally Floyd}, title = {{TCP Friendly Rate Control (TFRC): The Small-Packet (SP) Variant}}, pagetotal = 46, year = 2007, month = apr, abstract = {This document proposes a mechanism for further experimentation, but not for widespread deployment at this time in the global Internet. TCP-Friendly Rate Control (TFRC) is a congestion control mechanism for unicast flows operating in a best-effort Internet environment (RFC 3448). TFRC was intended for applications that use a fixed packet size, and was designed to be reasonably fair when competing for bandwidth with TCP connections using the same packet size. This document proposes TFRC-SP, a Small-Packet (SP) variant of TFRC, that is designed for applications that send small packets. The design goal for TFRC-SP is to achieve the same bandwidth in bps (bits per second) as a TCP flow using packets of up to 1500 bytes. TFRC-SP enforces a minimum interval of 10 ms between data packets to prevent a single flow from sending small packets arbitrarily frequently. Flows using TFRC-SP compete reasonably fairly with large-packet TCP and TFRC flows in environments where large-packet flows and small-packet flows experience similar packet drop rates. However, in environments where small-packet flows experience lower packet drop rates than large-packet flows (e.g., with Drop-Tail queues in units of bytes), TFRC-SP can receive considerably more than its share of the bandwidth. This memo defines an Experimental Protocol for the Internet community.}, }