draft-ietf-tsvwg-ieee-802-11-10.txt   draft-ietf-tsvwg-ieee-802-11-11.txt 
Transport Working Group T. Szigeti Transport Working Group T. Szigeti
Internet-Draft J. Henry Internet-Draft J. Henry
Intended status: Best Current Practice Cisco Systems Intended status: Best Current Practice Cisco Systems
Expires: June 18, 2018 F. Baker Expires: June 21, 2018 F. Baker
December 15, 2017 December 18, 2017
Diffserv to IEEE 802.11 Mapping Diffserv to IEEE 802.11 Mapping
draft-ietf-tsvwg-ieee-802-11-10 draft-ietf-tsvwg-ieee-802-11-11
Abstract Abstract
As internet traffic is increasingly sourced-from and destined-to As internet traffic is increasingly sourced-from and destined-to
wireless endpoints, it is crucial that Quality of Service be aligned wireless endpoints, it is crucial that Quality of Service be aligned
between wired and wireless networks; however, this is not always the between wired and wireless networks; however, this is not always the
case by default. This document specifies a set of Differentiated case by default. This document specifies a set of Differentiated
Services Code Point (DSCP) to IEEE 802.11 User Priority (UP) mappings Services Code Point (DSCP) to IEEE 802.11 User Priority (UP) mappings
to reconcile the marking recommendations offered by the IETF and the to reconcile the marking recommendations offered by the IETF and the
IEEE so as to maintain consistent QoS treatment between wired and IEEE so as to maintain consistent QoS treatment between wired and
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 18, 2018. This Internet-Draft will expire on June 21, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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The Low-Priority Data service class serves applications that the user The Low-Priority Data service class serves applications that the user
is willing to accept without service assurances. This service class is willing to accept without service assurances. This service class
is specified in [RFC3662] and [I-D.ietf-tsvwg-le-phb]. is specified in [RFC3662] and [I-D.ietf-tsvwg-le-phb].
[RFC3662] and [RFC4594] both recommend Low-Priority Data be marked [RFC3662] and [RFC4594] both recommend Low-Priority Data be marked
CS1 DSCP. CS1 DSCP.
Note: This marking recommendation may change in the future, as Note: This marking recommendation may change in the future, as
[I-D.ietf-tsvwg-le-phb] defines a Lower Effort (LE) per-hop behavior [I-D.ietf-tsvwg-le-phb] defines a Lower Effort (LE) per-hop behavior
(PHB) and states: "The RECOMMENDED codepoint for the LE PHB is (PHB) for Low-Priority Data traffic and recommends an additional DSCP
'000010'. for this traffic.
The Low-Priority Data service class loosely corresponds to the The Low-Priority Data service class loosely corresponds to the
[IEEE.802.11-2016] Background Access Category (AC_BK) and therefore [IEEE.802.11-2016] Background Access Category (AC_BK) and therefore
it is RECOMMENDED to map Low-Priority Data traffic marked CS1 DSCP to it is RECOMMENDED to map Low-Priority Data traffic marked CS1 DSCP to
UP 1, thereby admitting it to the Background Access Category (AC_BK). UP 1, thereby admitting it to the Background Access Category (AC_BK).
This happens to correspond to the default mapping (as described in This happens to correspond to the default mapping (as described in
Section 2.3). Section 2.3).
4.3. DSCP-to-UP Mapping Recommendations Summary 4.3. DSCP-to-UP Mapping Recommendations Summary
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