Re: [Lsr] [Gen-art] Genart last call review of draft-ietf-isis-segment-routing-extensions-23

[Alissa Cooper]

Erik, thanks for your review. Les, thanks for the updates. I entered a No 
Objection ballot.

Alissa

> On Apr 18, 2019, at 12:26 AM, Les Ginsberg (ginsberg)  
> wrote:
> 
> Erik -
> 
> Thanx for the detailed review.
> I have published V24 of the draft which addresses all of your comments (and a 
> few pending AD review comments from Alvaro).
> Some exceptions noted below.
> 
>> -Original Message-
>> From: Erik Kline via Datatracker 
>> Sent: Wednesday, April 17, 2019 7:20 PM
>> To: gen-...@ietf.org
>> Cc: lsr@ietf.org; i...@ietf.org; draft-ietf-isis-segment-routing-
>> extensions@ietf.org
>> Subject: Genart last call review of 
>> draft-ietf-isis-segment-routing-extensions-
>> 23
>> 
>> Reviewer: Erik Kline
>> Review result: Ready with Nits
>> 
>> I am the assigned Gen-ART reviewer for this draft. The General Area
>> Review Team (Gen-ART) reviews all IETF documents being processed
>> by the IESG for the IETF Chair.  Please treat these comments just
>> like any other last call comments.
>> 
>> For more information, please see the FAQ at
>> 
>> .
>> 
>> Document: draft-ietf-isis-segment-routing-extensions-??
>> Reviewer: Erik Kline
>> Review Date: 2019-04-17
>> IETF LC End Date: 2019-04-17
>> IESG Telechat date: Not scheduled for a telechat
>> 
>> Summary:
>> 
>> For what little I know of IS-IS and segment routing, this all seems to make
>> general sense.  I simply had some language/style nits (below).
>> 
>> Major issues:
>> 
>> Minor issues:
>> 
>> Nits/editorial comments:
>> 
>> # Section 1
>> 
>> * "SR's control-plane can be applied ..., and do not require...".  It looks
>> like the subject of the sentence is "control-plane" and so perhaps "do not"
>> should be "does not".
>> 
>> * s/draft/document/g
>> 
>> # Section 2.1
>> 
>> * "Algorithms identifiers" -> "Algorithm identifiers"
>> 
>> # Section 2.2.2
>> 
>> * Length: variable
>> 
>> Should this say "11-12" (1 + 1 + 6 + 3-4)?
>> 
> [Les:] No. System ID may be a value from 1-8 octets in length (though in 
> practice only the value 6 is used). I have clarified the text to mention that 
> this field is of "ID Length" (as per ISO 10589).
> 
>> * "set of Adj-SID each router" -> "set of Adj-SIDs each router", perhaps.
>> 
>> # Section 2.3
>> 
>> s/valu eis/value is/
>> 
>> # Section 2.4
>> 
>> Silly, naive question: does the length include the sum of the octets
>> representing the sub-TLVs?
>> 
> [Les:] Yes. TLV length includes all of the data contained in the TLV - 
> including sub-TLVs.
> 
>Les
> 
>> # Section 2.4.6
>> 
>> In example 3, I would recommend s/0xD/0x0D/ & s/0x0/0x00/ & s/0x1/0x01/
>> ,
>> but perhaps that's just a personal readability thing.
>> 
>> # Section 3.3
>> 
>> * "by other components than" -> "by components other than", perhaps.
>> 
>> * "to know what are the local SIDs" -> "to know what the local SIDs are",
>>  perhaps.
>> 
>> * "The SRLB sub-TLV is used for this purpose...", (instead of "that purpose")
>> maybe.
>> 
>> * "which mechanisms are outside" -> "which are outside", maybe.
>> 
>> * "the SRLB TLV" -> "the SRLB sub-TLV", I think.
>> 
> 
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[Lsr] 答复: Working Group Adoption Call for "IS-IS Extensions to Support Routing over IPv6 Dataplane" - draft-bashandy-isis-srv6-extensions-05.txt

[Lizhenbin]

I support the adoption. There are also implementations on the drafts. The 
adoption will be very helpful on SRv6 work.





Best Regards,

Zhenbin (Robin)








发件人: Lsr [lsr-boun...@ietf.org] 代表 Acee Lindem (acee) [a...@cisco.com]
发送时间: 2019年5月9日 21:49
收件人: lsr@ietf.org
主题: [Lsr] Working Group Adoption Call for "IS-IS Extensions to Support Routing 
over IPv6 Dataplane" - draft-bashandy-isis-srv6-extensions-05.txt

We been holding off WG adoption until the base SRv6 draft was adopted in 
SPRING. Now that 
https://datatracker.ietf.org/doc/draft-ietf-spring-srv6-network-programming/ 
has been adopted, we are starting a two week LSR WG adoption poll for the 
subject draft. Please register your support or objection prior to 12:00 AM UTC, 
on May 25th, 2019.

For your convenience, here is a URL for the draft:

https://datatracker.ietf.org/doc/draft-bashandy-isis-srv6-extensions/

Thanks,
Acee

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[Lsr] I-D Action: draft-ietf-lsr-flex-algo-02.txt

[internet-drafts]

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Link State Routing WG of the IETF.

Title   : IGP Flexible Algorithm
Authors : Peter Psenak
  Shraddha Hegde
  Clarence Filsfils
  Ketan Talaulikar
  Arkadiy Gulko
Filename: draft-ietf-lsr-flex-algo-02.txt
Pages   : 23
Date: 2019-05-13

Abstract:
   IGP protocols traditionally compute best paths over the network based
   on the IGP metric assigned to the links.  Many network deployments
   use RSVP-TE based or Segment Routing based Traffic Engineering to
   enforce traffic over a path that is computed using different metrics
   or constraints than the shortest IGP path.  This document proposes a
   solution that allows IGPs themselves to compute constraint based
   paths over the network.  This document also specifies a way of using
   Segment Routing Prefix-SIDs to steer packets along the constraint-
   based paths.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-flex-algo/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-02
https://datatracker.ietf.org/doc/html/draft-ietf-lsr-flex-algo-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-lsr-flex-algo-02


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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[Lsr] I-D Action: draft-ietf-ospf-mpls-elc-08.txt

[internet-drafts]

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Link State Routing WG of the IETF.

Title   : Signaling Entropy Label Capability and Entropy 
Readable Label-stack Depth Using OSPF
Authors : Xiaohu Xu
  Sriganesh Kini
  Peter Psenak
  Clarence Filsfils
  Stephane Litkowski
Filename: draft-ietf-ospf-mpls-elc-08.txt
Pages   : 7
Date: 2019-05-13

Abstract:
   Multiprotocol Label Switching (MPLS) has defined a mechanism to load
   balance traffic flows using Entropy Labels (EL).  An ingress Label
   Switching Router (LSR) cannot insert ELs for packets going into a
   given tunnel unless an egress LSR has indicated via signaling that it
   has the capability of processing ELs, referred to as Entropy Label
   Capability (ELC), on that tunnel.  In addition, it would be useful
   for ingress LSRs to know each LSR's capability of reading the maximum
   label stack depth and performing EL-based load-balancing, referred to
   as Entropy Readable Label Depth (ERLD), in the cases where stacked
   LSPs are used.  This document defines a mechanisms to signal these
   two capabilities using OSPF and OSPFv3.  These mechanisms are
   particularly useful in the environment where Segment Routing (SR) is
   used, where label advertisements are done via protocols like OSPF and
   OSPFv3.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ospf-mpls-elc/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-ospf-mpls-elc-08
https://datatracker.ietf.org/doc/html/draft-ietf-ospf-mpls-elc-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-ospf-mpls-elc-08


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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Re: [Lsr] IPR Poll for "IS-IS Extensions to Support Routing over IPv6 Dataplane" - draft-bashandy-isis-srv6-extensions-05.txt

[Peter Psenak]

Hi Acee,

I’m not aware of any non-disclosed IPRs.

thanks,
Peter



Regards,On 09/05/2019 16:23 , Acee Lindem (acee) wrote:

Authors,



Are you aware of any IPR that applies to

draft-bashandy-isis-srv6-extensions-05.txt?



If so, has this IPR been disclosed in compliance with IETF IPR rules

(see RFCs 3979, 4879, 3669 and 5378 for more details).



If you are listed as a document author or contributor please respond

to this email regardless of whether or not you are aware of any

relevant IPR. *The response needs to be sent to the LSR WG mailing

list.* The document will not advance to the next stage until a

response has been received from each author and contributor.



If you are on the LSR WG email list but are not listed as an author or

contributor, then please explicitly respond only if you are aware of

any IPR that has not yet been disclosed in conformance with IETF rules.



Thanks,

Acee







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Re: [Lsr] Working Group Adoption Call for "IS-IS Extensions to Support Routing over IPv6 Dataplane" - draft-bashandy-isis-srv6-extensions-05.txt

[Peter Psenak]

I support the adoption of draft-bashandy-isis-srv6-extensions as WG item.

thanks,
Peter


On 09/05/2019 15:49 , Acee Lindem (acee) wrote:

We been holding off WG adoption until the base SRv6 draft was adopted in
SPRING. Now that
https://datatracker.ietf.org/doc/draft-ietf-spring-srv6-network-programming/
has been adopted, we are starting a two week LSR WG adoption poll for
the subject draft. Please register your support or objection prior to
12:00 AM UTC, on May 25^th , 2019.



For your convenience, here is a URL for the draft:



https://datatracker.ietf.org/doc/draft-bashandy-isis-srv6-extensions/



Thanks,

Acee





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