[tsvwg] draft-ietf-tsvwg-nqb-15.txt - Section 5.2. Traffic Protection - Requirements and example ref

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Hi Greg,

Section  5.2. Traffic Protection

To me, one of the features which might add value to am NQB PHB as compared to EF as specified by Van Jacobsen et al. could be a queue protection. The draft offers a reference to an IPR protected ID, https://www.ietf.org/archive/id/draft-ietf-tsvwg-nqb-15.html#I-D.briscoe-docsis-q-protection. My personal view is, unless draft NQB defines generic requirements for a queue protection, which can be implemented without having to deploy the IPR protected ID. The text of section 5.2 is insufficient to do so.  

As an example for text where I'd assume you can find some generic requirements (including requirements language), please have a look at

Data-Over-Cable Service Interface Specifications
DOCSIS® 3.1
MAC and Upper Layer Protocols Interface Specification
CM-SP-MULPIv3.1-I24-221019

https://community.cablelabs.com/wiki/plugins/servlet/cablelabs/alfresco/download?id=b13a1ebb-93de-4bda-b13d-e96186ac5671

or via https://www.cablelabs.com/specifications/search?currentPage=1&query=&category=DOCSIS&doctype=Specifications&content=false&archives=false&subcat=DOCSIS%203.1
should the above one not work.

There see Annex P.3 Microflow Categorization, especially section P.3 Microflow Categorization

Regards,

Ruediger



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Von: tsvwg <[e-mail]> Im Auftrag von [e-mail]
Gesendet: Donnerstag, 12. Januar 2023 01:34
An: [e-mail]
Cc: [e-mail]
Betreff: [tsvwg] I-D Action: draft-ietf-tsvwg-nqb-15.txt


A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Transport Area Working Group WG of the IETF.

        Title           : A Non-Queue-Building Per-Hop Behavior (NQB PHB) for Differentiated Services
        Authors         : Greg White
                          Thomas Fossati
  Filename        : draft-ietf-tsvwg-nqb-15.txt
  Pages           : 25
  Date            : 2023-01-11

Abstract:
   This document specifies properties and characteristics of a Non-
   Queue-Building Per-Hop Behavior (NQB PHB).  The purpose of this NQB
   PHB is to provide a separate queue that enables smooth, low-data-
   rate, application-limited traffic flows, which would ordinarily share
   a queue with bursty and capacity-seeking traffic, to avoid the
   latency, latency variation and loss caused by such traffic.  This PHB
   is implemented without prioritization and can be implemented without
   rate policing, making it suitable for environments where the use of
   these features is restricted.  The NQB PHB has been developed
   primarily for use by access network segments, where queuing delays
   and queuing loss caused by Queue-Building protocols are manifested,
   but its use is not limited to such segments.  In particular,
   applications to cable broadband links, Wi-Fi links, and mobile
   network radio and core segments are discussed.  This document
   recommends a specific Differentiated Services Code Point (DSCP) to
   identify Non-Queue-Building flows.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-tsvwg-nqb/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-tsvwg-nqb-15.html

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-tsvwg-nqb-15


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts