A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services

Metadata

Publisher: IETF
Doc Type: Standard
Pages: 18
Abstract: This document specifies properties and characteristics of a Lower- Effort Per-Hop Behavior (LE 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, BE traffic has precedence over LE traffic and may preempt it. Alternatively, packets forwarded by the LE PHB can be associated with a scavenger service class, i.e., they scavenge otherwise-unused resources only. 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 Differentiated Services Code Point (DSCP) value for the LE PHB. This specification obsoletes RFC 3662 and updates the DSCP recommended in RFCs 4594 and 8325 to use the DSCP assigned in this specification.
Publication Date: 2019-06-01
Status Note: Proposed Standard
DOI: 10.17487/RFC8622
Link: https://doi.org/10.17487/RFC8622
Author(s): Roland Bless
Keyword(s): Scavenger, PHB

Latest version of IETF RFC 8622

Document Versions — IETF RFC 8622

▶ IETF RFC 8622 (2019-06-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 2474 [Active*]
IETF RFC 2475 [Active*]
IETF RFC 8174 [Active*]

Bibliographic Reference(s)

10.1007-3-540-36480-3_10 — Chown-LBE-2003 EXTERNAL
10.1145-844193.844208 — Carlberg-LBE-2001 EXTERNAL
IETF.draft-bless-diffserv-lbe-phb-00 — Diffserv-LBE-PHB EXTERNAL
Secchi, R., Venne, A., and A. Custura, "Measurements concerning the DSCP for a LE PHB", Presentation held at the 99th IETF Meeting, TSVWG, Prague, July 2017, < https://datatracker.ietf.org/meeting/99/materials/ slides-99-tsvwg-sessb-31measurements-concerning- the-dscp-for-a-le-phb-00 >. EXTERNAL
IETF RFC 2914 [Active*]
IETF RFC 3168 [Active*]
IETF RFC 3439 [Active*]
IETF RFC 3662 [Superseded*]
RFC3754 — RFC3754 EXTERNAL
IETF RFC 4594 [Active*]
IETF RFC 5053 [Active*]
RFC6297 — RFC6297 EXTERNAL
IETF RFC 6817 [Active*]
IETF RFC 6973 [Active*]
IETF RFC 8085 [Active*]
RFC8087 — RFC8087 EXTERNAL
RFC8100 — RFC8100 EXTERNAL
IETF RFC 8126 [Active*]
RFC8325 — RFC8325 EXTERNAL
IETF RFC 8436 [Active*]

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/RFC8622.json

Supersedes:

IETF RFC 3662 [Superseded*]

Amends:

IETF RFC 4594 [Active*]

RFC8325 — RFC8325 EXTERNAL

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

IETF RFC 8622, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services. Available at https://doi.org/10.17487/RFC8622

Snippet:

IETF RFC 8622, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services. Available at https://doi.org/10.17487/RFC8622

HTML (ISO 690 compliant)

Preview:

IETF RFC 8622, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services. Available at https://doi.org/10.17487/RFC8622

Snippet:

<span class="citation"><cite>IETF RFC 8622</cite>, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services. Available at <a href="https://doi.org/10.17487/RFC8622" target="_blank" rel="noopener">https://doi.org/10.17487/RFC8622</a></span>

SMPTE's HTML Pub

Preview:

IETF RFC 8622, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services
doi: 10.17487/RFC8622
url: https://doi.org/10.17487/RFC8622

Snippet:

<li>
<cite id="bib-rfc8622">IETF RFC 8622</cite>, A Lower-Effort Per-Hop Behavior (LE PHB) for Differentiated Services
<span class="doi">10.17487/RFC8622</span>
</li>