Re: [Dyncast] Fw: New Version Notification for draft-liu-dyncast-ps-usecases-00.txt

"Joel M. Halpern" <> Mon, 01 February 2021 14:24 UTC

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To: dyncast <>
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From: "Joel M. Halpern" <>
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Date: Mon, 1 Feb 2021 09:24:08 -0500
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Subject: Re: [Dyncast] Fw: New Version Notification for draft-liu-dyncast-ps-usecases-00.txt
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This problem statement draft seems to assume a particular approach to 
the solution.

It is not at all obvious, absent the assumptions, that one wants to put 
the information into routing at all.  There are multiple approaches that 
address the problem that do not require the use of anycast addressing or 
injecting the application placement dynamics into the underlying routing 


On 2/1/2021 5:22 AM, 刘鹏 wrote:
> Dear all,
> Welcome all to the mailing list for the problem of and work on dynamic 
> anycast, enabling the consideration of compute and network metrics in 
> the decision to route a flow of packets among more than one service 
> instance. We have now uploaded the use case and problem statement draft, 
> outlining a few pertinent use cases for this work, as well as 
> shortcomings of existing solutions and requirements for a desirable 
> solution. It is the intention to use this draft to frame the discussion 
> towards a possible solution proposal. To this end, we also plan on 
> releasing a first version of an architecture draft soon.
> In the meantime, any comments and discussion on the use case and problem 
> statement draft is highly welcome!
> Best,
> Peng Liu
> Peng Liu | 刘鹏
> China Mobile | 移动研究院
> mobile phone:13810146105
> email: _ liupengyjy@chinamobile.com_
>     发件人: internet-drafts <>
>     时间: 2021/02/01(星期一)18:15
>     收件人: Dirk Trossen <>;Peng Liu
>     <>;Peter Willis
>     <>;
>     主题: New Version Notification for draft-liu-dyncast-ps-usecases-00.txt
> A new version of I-D, draft-liu-dyncast-ps-usecases-00.txt
> has been successfully submitted by Dirk Trossen and posted to the
> IETF repository.
> Name: draft-liu-dyncast-ps-usecases
> Revision: 00
> Title: Dynamic-Anycast (Dyncast) Use Cases and Problem Statement
> Document date: 2021-02-01
> Group: Individual Submission
> Pages: 14
> URL:
> Status:
> Htmlized: 
> Htmlized:
> Abstract:
> Service providers are exploring the edge computing to achieve better
> response time, control over data and carbon energy saving by moving
> the computing services towards the edge of the network in 5G MEC
> (Multi-access Edge Computing) scenarios, virtualized central office,
> and others. Providing services by sharing computing resources from
> multiple edges is an emerging concept that is becoming more useful
> for computationally intensive tasks. Ideally, services should be
> computationally balanced using service-specific metrics instead of
> simply dispatching the service in a static way, e.g., to the
> geographically closest edge since this may cause unbalanced usage of
> computing resources at edges which further degrades user experience
> and system utilization. This draft provides an overview of scenarios
> and problems associated with realizing such scenarios.
> The document identifies several key areas which require more
> investigations in terms of architecture and protocol to achieve
> balanced computing and networking resource utilization among edges
> providing the services.
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at
> The IETF Secretariat