Re: New Version Notification for draft-ietf-bfd-stability-06.txt

"Reshad Rahman (rrahman)" <rrahman@cisco.com> Fri, 24 July 2020 02:43 UTC

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From: "Reshad Rahman (rrahman)" <rrahman@cisco.com>
To: Santosh P K <santosh.pallagatti@gmail.com>, rtg-bfd WG <rtg-bfd@ietf.org>
Subject: Re: New Version Notification for draft-ietf-bfd-stability-06.txt
Thread-Topic: New Version Notification for draft-ietf-bfd-stability-06.txt
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Date: Fri, 24 Jul 2020 02:43:02 +0000
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Hi Santosh,

Thanks for addressing the comments.

General: NULL authentication TLV is still used, should be replaced with NULL authentication type or section as appropriate.
Be consistent for Null v/s NULL (NULL Auth is used in bfd-optimizing-authentication)

Introduction
s/detect lost packet/detect lost packets/

Section 3 Use Cases:
s/any BFD packet loss if loss/any BFD packet loss if the loss/
s/BFD implementation/BFD implementations/
Where the text says “failure of a link”, might be better to say “failure of a datapath”?
Informative references to CFM and TWAMP would be useful

Section 4

“by appending the Null-Authentication type “. Suggest “by appending an authentication section with the NULL Authentication type “

Section 5
“BFD uses authentication TLV”, suggest change to “BFD uses an authentication section”.

“BFD packets MUST include NULL-Auth TLV”. Change to “BFD control packets MUST include an authentication section with the NULL Authentication type”

Section 5.1


“The first BFD NULL-Auth type processed by the receiver…”.  Change to  “The first BFD authentication section with the NULL Authentication type, in a valid BFD control packet, processed by the receiver” .

Also, does it have to be NULL Auth, I believe it can be any auth with sequence number? If that’s the case change to  “The first BFD authentication section with a non-zero sequence number, in a valid BFD control packet, processed by the receiver is used for….”.



Regards,

Reshad.


From: Rtg-bfd <rtg-bfd-bounces@ietf.org> on behalf of Santosh P K <santosh.pallagatti@gmail.com>
Date: Sunday, July 19, 2020 at 4:06 PM
To: "rtg-bfd@ietf.org" <rtg-bfd@ietf.org>
Subject: Fwd: New Version Notification for draft-ietf-bfd-stability-06.txt

Hello All,
    A new version of draft for BFD-stablity is here for review. Changes include addressing shepherd comments as provided here. https://datatracker.ietf.org/doc/draft-ietf-bfd-stability/shepherdwriteup/. Please also see attached diff.

Thanks
Santosh P K
---------- Forwarded message ---------
From: <internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>>
Date: Mon, Jul 13, 2020 at 4:41 PM
Subject: New Version Notification for draft-ietf-bfd-stability-06.txt
To: Mach Chen <mach.chen@huawei.com<mailto:mach.chen@huawei.com>>, Ankur Saxena <ankurpsaxena@gmail.com<mailto:ankurpsaxena@gmail.com>>, Peng Fan <fanp08@gmail.com<mailto:fanp08@gmail.com>>, Mahesh Jethanandani <mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>, Ashesh Mishra <mishra.ashesh@gmail.com<mailto:mishra.ashesh@gmail.com>>, Santosh Pallagatti <santosh.pallagatti@gmail.com<mailto:santosh.pallagatti@gmail.com>>



A new version of I-D, draft-ietf-bfd-stability-06.txt
has been successfully submitted by Santosh Pallagatti and posted to the
IETF repository.

Name:           draft-ietf-bfd-stability
Revision:       06
Title:          BFD Stability
Document date:  2020-07-13
Group:          bfd
Pages:          6
URL:            https://www.ietf.org/internet-drafts/draft-ietf-bfd-stability-06.txt
Status:         https://datatracker.ietf.org/doc/draft-ietf-bfd-stability/
Htmlized:       https://tools.ietf.org/html/draft-ietf-bfd-stability-06
Htmlized:       https://datatracker.ietf.org/doc/html/draft-ietf-bfd-stability
Diff:           https://www.ietf.org/rfcdiff?url2=draft-ietf-bfd-stability-06

Abstract:
   This document describes extensions to the Bidirectional Forwarding
   Detection (BFD) protocol to measure BFD stability.  Specifically, it
   describes a mechanism for detection of BFD packet loss.




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