{
  "number": 4828,
  "title": "TCP Friendly Rate Control (TFRC): The Small-Packet (SP) Variant",
  "authors": [
    "S. Floyd",
    "E. Kohler"
  ],
  "published": "2007-04",
  "status": "Experimental",
  "stream": "IETF",
  "area": "tsv",
  "working_group": "dccp",
  "pages": 46,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "This document proposes a mechanism for further experimentation, but not for widespread deployment at this time in the global Internet.\n\nTCP-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.\n\nFlows 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.",
  "keywords": [
    "transmission control protocol"
  ],
  "draft": "draft-ietf-dccp-tfrc-voip-07",
  "doi": "10.17487/RFC4828",
  "errata_url": "https://www.rfc-editor.org/errata/rfc4828",
  "urls": {
    "html": "https://rfc.dk/rfc4828/",
    "text": "https://rfc.dk/rfc4828.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc4828",
    "datatracker": "https://datatracker.ietf.org/doc/rfc4828/"
  },
  "text_modified": "2007-04-14T01:17:15Z"
}