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Re: [spring] Re draft-hu-spring-segment-routing-proxy-forwarding-14

Huaimo Chen <huaimo.chen@futurewei.com> Tue, 27 July 2021 02:14 UTC

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From: Huaimo Chen <huaimo.chen@futurewei.com>
To: Stewart Bryant <stewart.bryant@gmail.com>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Re draft-hu-spring-segment-routing-proxy-forwarding-14
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Date: Tue, 27 Jul 2021 02:14:16 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/bnOsk3QctAg22AOgriNBrNePi-Y>
Subject: Re: [spring] Re draft-hu-spring-segment-routing-proxy-forwarding-14
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Hi Stewart,

    draft-hu-spring-segment-routing-proxy-forwarding-14 does not use anycast SID to protect a node failure. Another informational draft talks about using anycast SID to protect a node failure.

Best Regards,
Huaimo
________________________________
From: spring <spring-bounces@ietf.org> on behalf of Stewart Bryant <stewart.bryant@gmail.com>
Sent: Monday, July 26, 2021 4:04 PM
To: spring@ietf.org <spring@ietf.org>
Cc: Stewart Bryant <stewart.bryant@gmail.com>
Subject: [spring] Re draft-hu-spring-segment-routing-proxy-forwarding-14

Regarding draft-hu-spring-segment-routing-proxy-forwarding-14

Do you need to provide any protocol to address this case?

In the diagram provided, if N1 acts as an anycast SID for N but at high cost, then normal FRR node protection addresses the requirement of delivering the packet to N1 which will strip SID N and sent the packet to the Node advertising the next SID.

- Stewart


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