Thanks Rakesh, sounds good to me.
Jon

From: Rakesh Gandhi <rgandhi.i...@gmail.com>
Sent: 21 June 2019 18:30
To: Jonathan Hardwick <jonathan.hardw...@metaswitch.com>
Cc: rtg-...@ietf.org; rtg-...@ietf.org; pce@ietf.org; 
draft-ietf-pce-stateful-pce-auto-bandwidth....@ietf.org
Subject: Re: [Pce] Routing directorate review of 
draft-ietf-pce-stateful-pce-auto-bandwidth-09

NOTE: Message is from an external sender
Hi Jon,

Thank you for the review comments. Please see inline with <RG>...

On Tue, Jun 18, 2019 at 5:53 AM Jonathan Hardwick 
<Jonathan.Hardwick=40metaswitch....@dmarc.ietf.org<mailto:40metaswitch....@dmarc.ietf.org>>
 wrote:
Hi there

I have reviewed this draft for the routing directorate as part of preparing it 
for IETF last call and IESG review.

I was familiar with this document from the time that I chaired the PCE working 
group, but this was the first time I read it all the way through and paid 
attention to all details.  I found it easy to read and understand.  I think it 
is basically ready to go with a few small clarifications and nits, below.

Cheers
Jon

Document: draft-ietf-pce-stateful-pce-auto-bandwidth-09
Reviewer: Jon Hardwick
Review Date: 18 June 2019
IETF LC End Date: LC not started yet
Intended Status: Standards Track

Comments
Section 3 is somewhat redundant IMO.

<RG> We can keep it given the Figure showing the extensions unless there is a 
preference to remove it.

4.1 you should ideally provide a reference for how to do MBB signalling.

<RG> Added [RFC3209].

4.3 “Similarly, if a PCC gets overwhelmed due to signaling churn, it can notify 
the PCE to temporarily suspend new LSP setup requests.”  I think this is 
covered by 5.7 as well as the PCE case, but you only refer to 5.7 for the 
latter. Please point to 5.7 for both cases.

<RG> Added.

5.1 Not a big deal, but I wonder if there is any practical reason to 
differentiate the final two bullets.

<RG> There is a precedence for the second bullet error message in [RFC 8231] 
(e.g. error-value 2). The first bullet error message just comes from the 
existing behaviour without this extension.


5.6 Why are AUTO-BANDWIDTH-ATTRIBUTES required (MUST) in the LSPA object of a 
PCRpt?  If the LSP is PCE-initiated, then the PCE already knows what attributes 
were specified.  If the LSP is PCC-Initiated, then the attributes are the PCC’s 
business – the PCE can’t change them (per 5.5) and I don’t think the PCE even 
needs to know what they are.

<RG> Agree. Removed the sentence.

7.2 Misuses RFC 2119 language to request an action from a working group.  In 
other documents (when there is not already a draft in progress to do it) we 
have reworded this as “the YANG / MIB could be updated” etc.

<RG> Updated the text.


Nits
5: “Extensions to the PCEP” would sound better as “PCEP Extensions”

<RG> Fixed.

7: In RFC 6123 it says “The Manageability Considerations section SHOULD be 
placed immediately before the Security Considerations section in any 
Internet-Draft.” – but here, it comes after.

<RG> Updated.

Thanks,
Rakesh



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