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Re: [Idr] Adoption call for draft-dunbar-idr-5g-edge-compute-app-meta-data-09.txt (7/29/2022 to 8/12/2022)

Zhuangshunwan <zhuangshunwan@huawei.com> Tue, 16 August 2022 09:30 UTC

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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: Susan Hares <shares@ndzh.com>, "idr@ietf.org" <idr@ietf.org>
Thread-Topic: Adoption call for draft-dunbar-idr-5g-edge-compute-app-meta-data-09.txt (7/29/2022 to 8/12/2022)
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Date: Tue, 16 Aug 2022 09:29:57 +0000
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Subject: Re: [Idr] Adoption call for draft-dunbar-idr-5g-edge-compute-app-meta-data-09.txt (7/29/2022 to 8/12/2022)
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Hi Sue,

I've read this draft and support its adoption. 
Please find my replies to the questions inline with [Shunwan].

Regards,
Shunwan

> -----Original Message-----
> From: Idr [mailto:idr-bounces@ietf.org] On Behalf Of Susan Hares
> Sent: Friday, July 29, 2022 6:23 PM
> To: idr@ietf.org
> Subject: [Idr] Adoption call for
> draft-dunbar-idr-5g-edge-compute-app-meta-data-09.txt (7/29/2022 to
> 8/12/2022)
> 
> This begins a 3 week WG Adoption call for
> draft-dunbar-idr-5g-edge-compute-app-meta-data-09.txt
> https://datatracker.ietf.org/doc/draft-dunbar-idr-5g-edge-compute-app-meta
> -data/
> 
> This draft proposes a new SubTLV (AppMetaData) for the BGP Tunnel
> Encapsulation Attribute [RFC9012] that indicates the running status and
> environment of directly attached 5G Edge Computing (EC) instances.
> 
> The AppMetaData can be used by routers in the 5G Local Data Network to
> make path selection not only based on the routing distance but also the
> running environment of the destinations. The goal is to improve latency and
> performance for 5G EC services.
> 
> In your discussion of this adoption call, please consider these questions:
> 
> 1) The addition of this type of information to tunnels is useful for
> inter-domain routing within 5G networks?
[Shunwan] Yes.
> 
> 2) What type of additional load this data to Basic Tunnel encapsulation
> [RFC9012]?
> 
> For example is the load placed by this draft equal or Less than the SR routing
> additions from such as draft-ietf-idr-segment-routing-te-policy?
> 
[Shunwan] I think the load is very slight. The information carried along with the tunnel can be used in many scenarios. In addition, maybe an new BGP attributes can be used to carry such information when no tunnel information is available for some service routes.

> 3) Will the addition of this information aid Routing in 5G networks?
[Shunwan] Yes. it will be helpful for the Ingress node to have the ability to select the better path in the 5G networks.
> 
> Cheers, Sue Hares
> 
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