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RE: Seeking opinions on draft-akiya-bfd-seamless-alert-discrim

"Nobo Akiya (nobo)" <nobo@cisco.com> Sat, 15 November 2014 19:36 UTC

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From: "Nobo Akiya (nobo)" <nobo@cisco.com>
To: "MALLIK MUDIGONDA (mmudigon)" <mmudigon@cisco.com>, "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>
Subject: RE: Seeking opinions on draft-akiya-bfd-seamless-alert-discrim
Thread-Topic: Seeking opinions on draft-akiya-bfd-seamless-alert-discrim
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Date: Sat, 15 Nov 2014 19:36:04 +0000
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Hi Mallik,

Many thanks for providing your comments.

Thanks!

-Nobo


From: MALLIK MUDIGONDA (mmudigon)
Sent: Saturday, November 15, 2014 2:33 AM
To: Nobo Akiya (nobo); rtg-bfd@ietf.org
Subject: Re: Seeking opinions on draft-akiya-bfd-seamless-alert-discrim

Hi Nobo,

Replies inline

Regards
Mallik

From: "Nobo Akiya (nobo)" <nobo@cisco.com<mailto:nobo@cisco.com>>
Date: Friday, 14 November 2014 9:34 am
To: "rtg-bfd@ietf.org<mailto:rtg-bfd@ietf.org>" <rtg-bfd@ietf.org<mailto:rtg-bfd@ietf.org>>
Subject: Seeking opinions on draft-akiya-bfd-seamless-alert-discrim

[Speaking as an individual S-BFD contributor]

Hi BFD WG,

There were couple of questions I need your input on draft-akiya-bfd-seamless-alert-discrim.


(1) Should the "extended" S-BFD use cases move to draft-ietf-bfd-seamless-use-case?

My opinion is yes. Once the "extended" S-BFD use cases have been incorporated into draft-ietf-bfd-seamless-use-case, then we should try to move draft-ietf-bfd-seamless-use-case forward.

How does the WG feel about this?

Mallik>> Agree. Since this is another use case of SBFD it makes sense to have all in one place.


(2) Should the alert discriminator proposal move to draft-ietf-bfd-seamless-base?

My opinion is no . Instead we should position this as an optional feature of S-BFD (hence separate document than the base), especially considering we likely need to think through additional security concerns raised by this.

A question was raised by Greg on how does a node find out if the target supports the optional alert discriminator or not. We can define a mandatory diagnostic value that must be implemented when the alert discriminator is implemented. One can send an S-BFD control packet with the alert discriminator with this diagnostic value to check if the target supports the alert discriminator mechanism.

How does the WG feel about this?

Mallik>> Agree. Since this is an optional feature using the base proposal of SBFD, we can have it as a separate document.

Thanks!

-Nobo

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