Re: [tsvwg] draft-evans-discardclass: Experience from implementing a new packet discard classification scheme

Ruediger.Geib@telekom.de Fri, 14 July 2023 07:45 UTC

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From: Ruediger.Geib@telekom.de
To: jevanamz=40amazon.co.uk@dmarc.ietf.org
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Thread-Topic: draft-evans-discardclass: Experience from implementing a new packet discard classification scheme
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/z5upcx02uXIulXkp_RRPKluV5tU>
Subject: Re: [tsvwg] draft-evans-discardclass: Experience from implementing a new packet discard classification scheme
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Hi John,

thanks for sharing. I'm not operational staff, but as far as I can judge, everything makes sense. I also understand that correct judgement of the cause for a packet drop - normal operation or undesired anomaly - is an issue. Simply using just a single loss threshold may create lot's of alarms while the network is operating normally. This isn't desirable.

Sorry for the late response and regards,

Ruediger


-----Ursprüngliche Nachricht-----
Von: tsvwg <tsvwg-bounces@ietf.org> Im Auftrag von Evans, John
Gesendet: Mittwoch, 24. Mai 2023 12:42
An: tsvwg@ietf.org
Betreff: [tsvwg] draft-evans-discardclass: Experience from implementing a new packet discard classification scheme

Hi All - we just posted a draft which may be of interest to this group. This is currently an individual submission. Please feel free to contact us with any feedback.

Thanks

John

--------

A new version of I-D, draft-evans-discardclass-01.txt has been successfully submitted by Oleksandr Pylypenko and posted to the IETF repository.


Name: draft-evans-discardclass
Revision: 01
Title: Experience from implementing a new packet discard classification scheme Document date: 2023-05-22
Group: Individual Submission
Pages: 13
URL: https://www.ietf.org/archive/id/draft-evans-discardclass-01.txt <https://www.ietf.org/archive/id/draft-evans-discardclass-01.txt>
Status: https://datatracker.ietf.org/doc/draft-evans-discardclass/ <https://datatracker.ietf.org/doc/draft-evans-discardclass/>
Htmlized: https://datatracker.ietf.org/doc/html/draft-evans-discardclass <https://datatracker.ietf.org/doc/html/draft-evans-discardclass>
Diff: https://author-tools.ietf.org/iddiff?url2=draft-evans-discardclass-01 <https://author-tools.ietf.org/iddiff?url2=draft-evans-discardclass-01>


Abstract:
Router reported packet loss is the primary signal of when a network is not doing its job. Some packet loss is normal or intended in TCP/ IP networks, however. To minimise network packet loss through automated network operations we need clear and accurate signals of all packets which are dropped and why. This document describes our experience from implementing a packet loss classification scheme to provide these signals and enable automated network mitigation of unintended packet loss.














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