Re: [tsvwg] I-D Action: draft-ietf-tsvwg-nqb-02.txt

[Greg White <[e-mail]>]

All,

My co-author and I have just posted an updated NQB draft that addresses many of the issues that had been identified previously.

Specifically:
- adds a discussion of interaction with DSCP remarking pathologies
- adds more text to describe what happens if the SHOULDs are not followed
- adds a requirement related to configuration of classifiers
- adds a section on impact to higher layer protocols
- adds a section on configuration and management
- adds a paragraph in the security considerations section about maliciously mismarked traffic
- other minor editorial changes.

One of the guidelines from RFC2475 that has not been complied with (yet) is "G.7:  A PHB group specification should include a section defining the implications of tunneling on the utility of the PHB group."  I would appreciate comments from the WG on useful items to discuss in such a section if it were to be included, the utility of including such a section, and even proposed text if anyone is willing to offer it.

Best Regards,
Greg



On 9/22/20, 11:07 AM, "tsvwg on behalf of [e-mail]" <[e-mail] on behalf of [e-mail]> wrote:

    
    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-02.txt
    	Pages           : 13
    	Date            : 2020-09-22
    
    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 low latency and, when
       possible, low loss for application-limited traffic flows that would
       ordinarily share a queue with capacity-seeking traffic.  This PHB is
       implemented without prioritization and without rate policing, making
       it suitable for environments where the use of either these features
       may be 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 and mobile network radio and core segments are
       discussed.  This document defines a standard 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 are also htmlized versions available at:
    https://tools.ietf.org/html/draft-ietf-tsvwg-nqb-02
    https://datatracker.ietf.org/doc/html/draft-ietf-tsvwg-nqb-02
    
    A diff from the previous version is available at:
    https://www.ietf.org/rfcdiff?url2=draft-ietf-tsvwg-nqb-02
    
    
    Please note that it may take a couple of minutes from the time of submission
    until the htmlized version and diff are available at tools.ietf.org.
    
    Internet-Drafts are also available by anonymous FTP at:
    ftp://ftp.ietf.org/internet-drafts/