RFC 3246: An Expedited Forwarding PHB (Per-Hop Behavior)

Publisher

IETF / RFC Editor

URL

https://www.rfc-editor.org/rfc/rfc3246.html

Published

2002-03-01

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

IETF Trust Legal Provisions (BCP 78/79); no-redistribution; short excerpts and locators only

Source notes citing this source

• The recommended codepoint for the Expedited Forwarding PHB is 101110 (decimal 46). in context
• The EF PHB serves EF packets at a configured rate on an output interface regardless of the load from other traffic, to give low delay, jitter and loss. in context
• The edge of a DS domain should strictly police all EF-marked packets to a rate negotiated with the adjacent upstream domain. in context
• Traffic conditioning at DS-domain ingress must ensure that packets carry an EF-mapped DSCP inside the domain only if they already had one on entry. in context
• RFC 3246 (March 2002) obsoletes RFC 2598 as the definition of the EF PHB. in context
• The recommended codepoint for the Expedited Forwarding PHB is binary 101110 (decimal 46). in context
• RFC 3246 says the edge of a DS domain SHOULD strictly police EF-marked packets to a rate negotiated with the adjacent upstream domain, so EF traffic exceeding that rate can be dropped at the boundary. in context

Cite this source record

APA

WarmTransfer. (2002, March 1). RFC 3246: An Expedited Forwarding PHB (Per-Hop Behavior). WarmTransfer. https://warmtransfer.net/knowledge/sources/rfc-3246-ef-phb

BibTeX

@misc{warmtransfer-rfc-3246-ef-phb,
  title  = {RFC 3246: An Expedited Forwarding PHB (Per-Hop Behavior)},
  author = {{WarmTransfer}},
  year   = {2002},
  url    = {https://warmtransfer.net/knowledge/sources/rfc-3246-ef-phb},
  note   = {IETF / RFC Editor, accessed 2026-09-24}
}