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Re: draft-ietf-bfd-unsolicited-09

Reshad Rahman <reshad@yahoo.com> Sun, 13 February 2022 17:04 UTC

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Date: Sun, 13 Feb 2022 17:04:47 +0000
From: Reshad Rahman <reshad@yahoo.com>
Reply-To: Reshad Rahman <reshad@yahoo.com>
To: "draft-ietf-bfd-unsolicited.authors@ietf.org" <draft-ietf-bfd-unsolicited.authors@ietf.org>, rtg-bfd WG <rtg-bfd@ietf.org>, Gyan Mishra <hayabusagsm@gmail.com>
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Subject: Re: draft-ietf-bfd-unsolicited-09
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 Hi Gyan,
Apologies for the delay and thanks for the feedback.
The document is applicable to single-hop and multi-hop. In the next revision, we will clarify this and extend the YANG model to include multi-hop.
The "unsolicited BFD" procedure allows a BFD session to be initiated only by 1 side. Once that BFD session is up, demand mode may or may not kick in, just like for RFC5880 BFD. So unsolicited BFD and demand mode are orthogonal.
The procedures in this document apply to RFC5880, aka classical, BFD. S-BFD session bringup is different, requires sharing S-BFD discriminators etc (as mentioned in the Introduction).
Wrt which RFCs are updated by this document: we need to add 9127 (or 9127-bis).
Regards,Reshad.
    On Sunday, January 2, 2022, 12:47:22 AM EST, Gyan Mishra <hayabusagsm@gmail.com> wrote:  
 
 
Dear Authors 
This is a very useful specification for operators.
Is this draft applicability for single hop, multi hop, demand  and S-BFD sessions.
Also what RFC’s does this draft update?
Kind Regards 
Gyan-- 




Gyan Mishra

Network Solutions Architect 

Email gyan.s.mishra@verizon.com


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