[Detnet] [Detnet ] Fwd: New draft on A Queuing Mechanism with Multiple Cyclic Buffers

Dangjuanna <dangjuanna@huawei.com> Wed, 03 March 2021 07:02 UTC

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From: Dangjuanna <dangjuanna@huawei.com>
To: "detnet@ietf.org" <detnet@ietf.org>, "Liubingyang (Bryan)" <liubingyang@huawei.com>
Thread-Topic: [Detnet ] Fwd: New draft on A Queuing Mechanism with Multiple Cyclic Buffers
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Date: Wed, 3 Mar 2021 07:01:56 +0000
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Subject: [Detnet] [Detnet ] Fwd: New draft on A Queuing Mechanism with Multiple Cyclic Buffers
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Hi All,

Network forwarding with bounded latency and zero congestion loss is important for various industrial applications.  The DetNet working group draft "DetNet Bounded Latency"[draft-ietf-detnet-bounded-latency] describes requirements for queuing mechanisms.  To cope with long link delay, more than two cyclic buffers can be used.  Among the referenced queuing mechanisms, Cyclic Queuing and Forwarding (CQF) requires no per-flow dynamic state at core nodes, which is scalable when the number of flows grows.  This draft<https://www.ietf.org/archive/id/draft-dang-queuing-with-multiple-cyclic-buffers-00.txt> discusses the details of the cyclic queuing mechanisms. We propose a queuing model and mechanism with multiple cyclic buffers, which can improve bandwidth utilization without sacrificing latency and jitter.

I list a few points as follows for discussion.

1.       The mechanism with multiple cyclic buffers can be used for bounded latency guarantee.

2.       In actual deployment, we need to know which nodes have this mechanism. Therefore, both the controller and YANG model need to be extended.

3.       While the latency is guaranteed, network bandwidth utilization and long-distance deployment should be the key considerations.

I hope that those above issues will arouse our attention.



-----Original Message-----

From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org> [mailto:internet-drafts@ietf.org]

Sent: 2021年2月22日 20:07

To: Liubingyang (Bryan) <liubingyang@huawei.com<mailto:liubingyang@huawei.com>>; Dangjuanna <dangjuanna@huawei.com<mailto:dangjuanna@huawei.com>>

Subject: New Version Notification for draft-dang-queuing-with-multiple-cyclic-buffers-00.txt

A new version of I-D, draft-dang-queuing-with-multiple-cyclic-buffers-00.txt

has been successfully submitted by Joanna Dang and posted to the IETF repository.

Name:               draft-dang-queuing-with-multiple-cyclic-buffers

Revision:  00

Title:                  A Queuing Mechanism with Multiple Cyclic Buffers

Document date:       2021-02-22

Group:               Individual Submission

Pages:               6

URL:            https://www.ietf.org/archive/id/draft-dang-queuing-with-multiple-cyclic-buffers-00.txt

Status:         https://datatracker.ietf.org/doc/draft-dang-queuing-with-multiple-cyclic-buffers/

Htmlized:       https://datatracker.ietf.org/doc/html/draft-dang-queuing-with-multiple-cyclic-buffers

Htmlized:       https://tools.ietf.org/html/draft-dang-queuing-with-multiple-cyclic-buffers-00


   This document presents a queuing mechanism with multiple cyclic


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