Jeff, thank you for reviewing
Please, see in line

Best regards,

[Logo]<https://ribboncommunications.com/>
Marina Fizgeer
Sr. Manager, Systems Architecture | Ribbon
M +972.544860016
Petah Tikva,  Israel
[Banner]<https://ribboncommunications.com/?_gl=1*6qlbuc*_gcl_au*MjA3NzE5OTk5NC4xNzI4NDE0NDY4*_ga*NTIxNzg1MDgxLjE3Mjg0MTQ0NjM.*_ga_VCEZ9Q3S3Y*MTcyODQ1MjEzMC4yLjEuMTcyODQ1MjE4OS4xLjAuMTA4NjExNTU4>


From: Jeffrey Haas <[email protected]>
Sent: Thursday, August 21, 2025 3:24 PM
To: Marina Fizgeer <[email protected]>
Cc: [email protected]; pce-chairs <[email protected]>; Dmytro Shypovalov 
<[email protected]>
Subject: Re: [EXTERNAL] [Pce] I-D Action: 
draft-ietf-pce-pcep-bfd-parameters-01.txt

Marina,

A few nits noted while reviewing the diff.  The BFD procedure updates addresses 
my prior comments:

§4.3.1:

Length is now 4+; by the rules listed, 4*n | n > 1.  The PCE experts can 
comment on whether padding to 4-byte boundaries is consistent with protocol 
practices.  I usually recommend no padding myself.[MF]  seems ok and exists in 
other docs

PST is not defined or referenced in this document. By context, it's attempting 
to provide a mechanism for the speakers to negotiate shared types for their 
S-BFD session.  If this was intended to be the path setup type in the 
terminology, you have a typo there labeling this PCT.  It also looks like this 
was intended to be a bullet list but had issues in the formatting.[MF]    Typo, 
will fix

No procedure is given to suggest preference when more than one is available. 
Unregistered PSTs causing the session to terminate seems a bit harsh, 
especially if at least one is negotiated?[MF]  will think, maybe you are right 
and session shall be terminated only if there is not any common PSTs between 
S-BFD and supported in session. Maybe even here meaning that S-BFD cannot be 
used for LSP. Will think

There should be an IANA section for these PSTs.[MF]  will add

Typo: speker.

-- Jeff



On Aug 21, 2025, at 3:23 AM, Marina Fizgeer 
<[email protected]<mailto:[email protected]>> wrote:

Hi, dear colleagues,

I published the new version of draft-ietf-pce-pcep-bfd-parameters draft.
As due date of the previous version was expired, I saw interest in this draft 
from several sides, I wanted to publish the updated version as soon as possible.
I made a lot of changes based on what I received during the adoption of this 
draft, but not all of them. And I will continue to do so. I also introduced 
some important changes on our side.
The main changes:

  1.  Add Path Setup Type to S-BFD capability TLV (like as Path Setup Type is 
defined in rfc8408) – meaning PCE peer supporting of S-BFD per technology

     *   With additional validations and error

  1.  Correction of multiplier values
  2.  More accurate (right) definition for Discriminator as optional/MUST 
sub-TLV use case and error
Other changes:

  1.  Correction and expanding of acronyms
  2.  Cases of low/upper of key words
  3.  Some explanation/description changes
  4.  …….

Best regards,

<image001.png><https://ribboncommunications.com>
Marina Fizgeer
Sr. Manager, Systems Architecture | Ribbon
M +972.544860016
Petah Tikva,  Israel
<image002.png><https://ribboncommunications.com/?_gl=1*6qlbuc*_gcl_au*MjA3NzE5OTk5NC4xNzI4NDE0NDY4*_ga*NTIxNzg1MDgxLjE3Mjg0MTQ0NjM.*_ga_VCEZ9Q3S3Y*MTcyODQ1MjEzMC4yLjEuMTcyODQ1MjE4OS4xLjAuMTA4NjExNTU4>


From: [email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>>
Sent: Wednesday, August 20, 2025 10:04 PM
To: [email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: [EXTERNAL] [Pce] I-D Action: draft-ietf-pce-pcep-bfd-parameters-01.txt

Internet-Draft draft-ietf-pce-pcep-bfd-parameters-01.txt is now available. It
is a work item of the Path Computation Element (PCE) WG of the IETF.

Title: PCEP Extensions to support BFD parameters
Authors: Marina Fizgeer
Orly Bachar
Name: draft-ietf-pce-pcep-bfd-parameters-01.txt
Pages: 12
Dates: 2025-08-20

Abstract:

This document proposes extension to PCEP to configure LSP parameters.
Some of LSP parameters are needed to configure S-BFD for candidate
paths. Each candidate path is identified in PCEP by its uniquely
assigned PLSP-ID. The mechanism proposed in this document is
applicable to to all path setup types. This extension can work with
ifferent PCEP Path Setup Types but especially suitable for Segment
Routing (SR-MPLS, SRv6)..

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-bfd-parameters/<https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-bfd-parameters>

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-pce-pcep-bfd-parameters-01.html<https://www.ietf.org/archive/id/draft-ietf-pce-pcep-bfd-parameters-01.html>

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-pce-pcep-bfd-parameters-01<https://author-tools.ietf.org/iddiff?url2=draft-ietf-pce-pcep-bfd-parameters-01>

Internet-Drafts are also available by rsync at:
rsync.ietf.org<http://rsync.ietf.org>::internet-drafts


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