A Lower Effort Per-Hop Behavior (LE PHB)

Document Type Replaced Internet-Draft (tsvwg WG)
Last updated 2016-08-08 (latest revision 2016-08-01)
Replaced by draft-tsvwg-le-phb, RFC 8622
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-tsvwg-le-phb, draft-ietf-tsvwg-le-phb
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies properties and characteristics of a Lower Effort (LE) per-hop behavior (PHB). The primary objective of this LE PHB is to protect best-effort (BE) traffic (packets forwarded with the default PHB) from LE traffic in congestion situations, i.e., when resources become scarce, best-effort traffic has precedence over LE traffic and may preempt it. There are numerous uses for this PHB, e.g., for background traffic of low precedence, such as bulk data transfers with low priority in time, non time-critical backups, larger software updates, web search engines while gathering information from web servers and so on. This document recommends a standard DSCP value for the LE PHB.


Roland Bless (roland.bless@kit.edu)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)