Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt

"Nobo Akiya (nobo)" <nobo@cisco.com> Thu, 15 May 2014 14:08 UTC

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From: "Nobo Akiya (nobo)" <nobo@cisco.com>
To: Mach Chen <mach.chen@huawei.com>, Hannes Gredler <hannes@juniper.net>
Thread-Topic: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Date: Thu, 15 May 2014 14:07:15 +0000
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Cc: Jeffrey Haas <jhaas@pfrc.org>, "Les Ginsberg \(ginsberg\)" <ginsberg@cisco.com>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>, "isis-wg@ietf.org" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Hi Mach, Hannes, et al,

> IMHO, the capability issue should not be a S-BFD specific issue, even not
> BFD specified issue. It is actually a forwarding capability issue, it is about
> whether the target node can process IPv4, IPv6, MPLS, SR encapsulated BFD
> packets.

I agree Mach, mostly :)

I can also see one arguing that forwarding supporting X does not always mean S-BFD is supported on X. If we want to address this, then it is an S-BFD specific issue, and we _may_ want to solve this via introducing S-BFD capability advertisements.

With that said, S-BFD discriminator advertisement is one area which the capability problem can be solved, but not necessary a problem that has to be solved with S-BFD discriminator advertisement. Rather I don't think the two should be bundled together.

Let us continue the capability discussion separate from the discriminator advertisements?

-Nobo