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Re: [Bier] Call For Adoption: draft-zhang-bier-bierin6

"Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net> Tue, 02 March 2021 02:31 UTC

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From: "Jeffrey (Zhaohui) Zhang" <zzhang@juniper.net>
To: duanfanghong <duanfanghong@huawei.com>, "gjshep@gmail.com" <gjshep@gmail.com>, BIER WG <bier@ietf.org>
Thread-Topic: [Bier] Call For Adoption: draft-zhang-bier-bierin6
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Date: Tue, 02 Mar 2021 02:31:32 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/bier/Xpf5Djth_8RFx1GxCWy2Zp7TXLg>
Subject: Re: [Bier] Call For Adoption: draft-zhang-bier-bierin6
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Hi Fanghong,

Please see zzh> below.

From: BIER <bier-bounces@ietf.org> On Behalf Of duanfanghong
Sent: Monday, March 1, 2021 8:23 PM
To: gjshep@gmail.com; BIER WG <bier@ietf.org>
Subject: Re: [Bier] Call For Adoption: draft-zhang-bier-bierin6

[External Email. Be cautious of content]

Hi,

I see this document proposes 2 options for MVPN/EVPN.
One is using the destination address to carry the ID of an MVPN/EVPN, but this means that every BFR have to be aware of the MVPN/EVPN instance, introducing state of MVPN/EVPN service and forwarding overhead in transit BFR nodes.

Zzh> This is not true. In this option, IPv6 is payload and is only exposed at the BFER. We have talked this in the last round of discussion.

The other is to use an IPv6 address after a BIER header and before the customer IP packet, however it proposes a new Proto value and new process in forwarding plane.

Zzh> BIERv6, with its companion MVPN/EVPN solution, also requires new process in forwarding plane.

I think both of the options have obvious defects,

Zzh> Please see above.
Zzh> Thanks.
Zzh> Jeffrey

and thus I do not support the adoption.

Thanks !
Fanghong Duan


From: BIER [mailto:bier-bounces@ietf.org] On Behalf Of Greg Shepherd
Sent: Friday, February 26, 2021 12:37 AM
To: BIER WG <bier@ietf.org<mailto:bier@ietf.org>>
Subject: [Bier] Call For Adoption: draft-zhang-bier-bierin6

Thank you all for the active discussion that brought us to consensus. This draft now addresses all of the points of discussion for the solution.

https://datatracker.ietf.org/doc/draft-zhang-bier-bierin6/<https://urldefense.com/v3/__https:/datatracker.ietf.org/doc/draft-zhang-bier-bierin6/__;!!NEt6yMaO-gk!Wz3exwJN85TEXwRgTI9gEwvjszwONVImICqBRh9GKk0mHtpLuzDK9Nf4DnO7hYbt$>

Please reply to this thread with your support/opposition of WG adoption of the draft.

Thanks,
Shep
(Chairs)


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