Re: [Bier] WG adoption call for draft-chen-bier-frr-02

Huaimo Chen <huaimo.chen@futurewei.com> Tue, 16 March 2021 14:55 UTC

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From: Huaimo Chen <huaimo.chen@futurewei.com>
To: Tony Przygienda <tonysietf@gmail.com>, zhang.zheng <zhang.zheng@zte.com.cn>
CC: BIER WG <bier@ietf.org>, BIER WG Chairs <bier-chairs@ietf.org>
Thread-Topic: [Bier] WG adoption call for draft-chen-bier-frr-02
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Date: Tue, 16 Mar 2021 14:55:38 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bier/BJQmc_IHfDLNb2lYoR9GvItYnbU>
Subject: Re: [Bier] WG adoption call for draft-chen-bier-frr-02
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Hi Tony,

    Thank you very much for your support and valuable comments.
    My responses are inline below with prefix [HC].

Best Regards,
Huaimo
________________________________
From: BIER <bier-bounces@ietf.org> on behalf of Tony Przygienda <tonysietf@gmail.com>
Sent: Tuesday, March 16, 2021 6:08 AM
To: zhang.zheng <zhang.zheng@zte.com.cn>
Cc: BIER WG <bier@ietf.org>rg>; BIER WG Chairs <bier-chairs@ietf.org>
Subject: Re: [Bier] WG adoption call for draft-chen-bier-frr-02

+1

I think it's a good addition within the architecture for the case IGP is not used for signalling, e.g. when controller or static programming.

The draft must however explain in what scenarios it is used and quote the according IGP drafts to guarantee loop-free behavior (well, BIER will tie-break loops but we'll have 1x microloop & possibly not deliver payload if BIER FRR is not properly computed/intsalled). With that the draft should also pay attention to how the function is deployed/updated network-wide if IGP is not present

[HC]: We will add explanations into the draft accordingly.
When IGP is not present in a network, the BIER controller for the network calculates, installs and/or updates BIER FRR BIFTs into BFRs in the network.
When IGP is present in a network, each BFR in the network calculates, installs and/or updates its BIER FRR BIFTs.
The BIER FRR in the draft is independent of the underlay IP FRR.

thanks

-- tony

On Tue, Mar 16, 2021 at 7:41 AM <zhang.zheng@zte.com.cn<mailto:zhang.zheng@zte.com.cn>> wrote:

A 2-week WG adoption call begins for the following draft:

https://datatracker.ietf.org/doc/draft-chen-bier-frr/<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-chen-bier-frr%2F&data=04%7C01%7Chuaimo.chen%40futurewei.com%7C79ac63710b47427a558d08d8e8638df2%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637514861570555970%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=DiHvux0ZUYEJru10lVQ4mXvpYx3l8ujGInm7uEjjxTw%3D&reserved=0>

Please indicate your support or objection by March 30th, 2021.

Authors, please respond to the list indicating whether you are aware of any IPR that applies to this draft.

Thanks,

Sandy (As WG secretary, on behalf of Greg/Tony)