Hi, all,
I have also some comments about this draft.
I read this document.
What is missing, from my point of view, is the description of use of new flag
in ERO sub object and LSPA object related to different message types.
For example, PCInit, report. Is it MUST to include it in report if it was in
initiate? Is it needed in initiated? At all, do we need it in report/reply, if
it was even in request?
As I understand, the main flow, described in this document is request-reply,
and not related to PCE initiated LSPs.
I think it would be useful to give a list of messages, where the new flag and
information can be and shall be used. And describe when it is optional, when it
is Must (and what to do if it is missed)
In additional small notes:
1.
In this document:
The code point for the TLV type is 66. The TLV length is 4 octets.
The 32-bit value is formatted as follows.
The common practices in other documents to write:
Type: Extended Association ID TLV, type = 31.
Length: Either 8 or 20, …..
2. In 3.5 Extensions to METRIC Object
2.1 The METRIC object is defined in Section 7.8 of [RFC5440]
Link to RFC is not so good, may be the better is to put link to this
specific section
2.2 Metric values shall be as in RFC5440:
T = 22: Path Min Delay metric
And not:
T:22: Path Min Delay metric
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From: Aijun Wang <[email protected]>
Sent: Tuesday, December 17, 2024 09:48
To: 'Dhruv Dhody' <[email protected]>; [email protected]
Cc: 'pce-chairs' <[email protected]>; [email protected]
Subject: [EXTERNAL] [Pce] 答复: WGLC for draft-ietf-pce-sid-algo-15
Hi, All:
I have review the document and has the following comments:
Although I think the document has already defined the related extension for the
information exchange between PCE and PCC, It’s bit harder for the reader to get
the reason behind this.
1. For example, in the introduction part, one sentence say: “While this
information is available on the PCE, there is no method of conveying this
information to the headend router. “
From my POV, the headend router can get such information from the IGP protocol,
why it is necessary to get such information from the PCE?
2. And again, it says: ”In addition, in the case of multiple (redundant)
PCEs, when the headend receives a path from the primary PCE, it needs to be
able to report the complete path information - including the SR-Algorithm -
to the backup PCE so that in HA scenarios”
From my POV, why the multiple(redundant)PCEs can’t exchange such information
themselves?
3. And, for the following rest part of introduction section, there is no
clear logic for the newly extended TLV and their purposes, or the remaining
part doesn’t cover all the extensions that described in the following sections.
4. And finally, I am wondering is there any other TLV/Sub-TLV that needs
to be synchronized between the PCE/PCC to make the final optimal path can be
calculated in each of them? The draft just enumerate them, but doesn’t’ explain
whether it covers all of them.
Then, I suggest the authors revisit the introduction part of this document, and
rewrite it to assure the reader the necessary of this document, and also its
enough coverage.
Maybe I miss something, if so, please forgive me.
Best Regards
Aijun Wang
China Telecom
发件人: [email protected]<mailto:[email protected]>
[mailto:[email protected]] 代表 Dhruv Dhody
发送时间: 2024年12月6日 3:02
收件人: [email protected]<mailto:[email protected]>
抄送: pce-chairs <[email protected]<mailto:[email protected]>>;
[email protected]<mailto:[email protected]>
主题: [Pce] WGLC for draft-ietf-pce-sid-algo-15
Hi WG,
This email starts a 3-weeks working group last call for
draft-ietf-pce-sid-algo-15.
https://datatracker.ietf.org/doc/draft-ietf-pce-sid-algo/<https://datatracker.ietf.org/doc/draft-ietf-pce-sid-algo/>
Please indicate your support or concern for this draft. If you are opposed to
the progression of the draft to RFC, please articulate your concern. If you
support it, please indicate that you have read the latest version and it is
ready for publication in your opinion. As always, review comments and nits are
most welcome.
The WG LC will end on Friday 27 Dec 2024.
A general reminder to the WG to be more vocal during the last-call/adoption.
Thanks,
Dhruv & Julien
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