Re: [Idr] Review Updates to draft-ietf-idr-bgp-prefix-sid

I note that the document still has the following text:

"a BGP speaker receiving a prefix with a BGP Prefix-SID attribute and a 
label NLRI field of Implicit NULL"

Am I the only one who doesn't know what the numeric value of "a label 
NLRI field of Implicit NULL" is?  There does not appear to be a 
definition of the numeric value of  "Implicit NULL" in RFC 8277, which 
is the only relevant item in the normative references.  Is a reference 
to RFC 3032 Section 2.1 required?

On 2/15/2018 8:37 AM, Alvaro Retana wrote:
> Dear idr WG:
>
> This draft has been through the WG and IESG process and it is waiting 
> final approval for publication.
>
> During the process some changes have been made, some of them 
> significant enough that I want to call out for your attention. Please 
> take a look at the latest version, specifically the updated text 
> related to multiple prefixes/paths in sections 4.1 and 4.2.  For your 
> convenience, I think that the diff between -14 and -16 provides the 
> clearest view:
>
> https://www.ietf.org/rfcdiff?url1=draft-ietf-idr-bgp-prefix-sid-14&url2=draft-ietf-idr-bgp-prefix-sid-16 
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_rfcdiff-3Furl1-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D14-26url2-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=o2an32VlUxyFhi7bKueRpn-9Nnv_ixMZmg44gSvPndA&e=> 
>
>
> I think the changes are fine and that they don’t require the document 
> returning to the WG.  But I just want to give you the opportunity to 
> look at them just in case.  If anyone has concerns, please reply to 
> this message.  I plan on approving the document for publication by the 
> end of next week (Feb/23).
>
> Thanks!
>
> Alvaro.
>
> On February 13, 2018 at 10:31:47 PM, internet-drafts@ietf.org 
> <mailto:internet-drafts@ietf.org> (internet-drafts@ietf.org 
> <mailto:internet-drafts@ietf.org>) wrote:
>
>>
>> A New Internet-Draft is available from the on-line Internet-Drafts 
>> directories.
>> This draft is a work item of the Inter-Domain Routing WG of the IETF.
>>
>> Title : Segment Routing Prefix SID extensions for BGP
>> Authors : Stefano Previdi
>> Clarence Filsfils
>> Acee Lindem
>> Arjun Sreekantiah
>> Hannes Gredler
>> Filename : draft-ietf-idr-bgp-prefix-sid-16.txt
>> Pages : 19
>> Date : 2018-02-13
>>
>> Abstract:
>> The Segment Routing (SR) architecture allows a node to steer a packet
>> flow through any topological path and service chain by leveraging
>> source routing. The ingress node prepends an SR header to a packet
>> containing a set of segment identifiers (SID). Each SID represents a
>> topological or a service-based instruction. Per-flow state is
>> maintained only on the ingress node of the SR domain.
>>
>> This document defines an optional, transitive BGP attribute for
>> announcing BGP Prefix Segment Identifiers (BGP Prefix-SID)
>> information.
>>
>>
>>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-prefix-sid/ 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid_&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=N0tgIIQyJcbiz8sY8xJGqoiz9XY0NgyZ4b2MCWOxPHU&e=> 
>>
>>
>> There are also htmlized versions available at:
>> https://tools.ietf.org/html/draft-ietf-idr-bgp-prefix-sid-16 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__tools.ietf.org_html_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=wwl2a9XgSSGYQmBMLUyjioJyIjaResJU63tV8Lh0oPw&e=> 
>>
>> https://datatracker.ietf.org/doc/html/draft-ietf-idr-bgp-prefix-sid-16 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__datatracker.ietf.org_doc_html_draft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=_PKFP2HU-RTOgNjv3cQOhwYyuwh5P5aOJa6mVSQzeCo&e=> 
>>
>>
>> A diff from the previous version is available at:
>> https://www.ietf.org/rfcdiff?url2=draft-ietf-idr-bgp-prefix-sid-16 
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_rfcdiff-3Furl2-3Ddraft-2Dietf-2Didr-2Dbgp-2Dprefix-2Dsid-2D16&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=7Ss6_8lzJDl0U3F8b4M9edpF1XG9JtyoZsQT_UModj0&e=> 
>>
>>
>>
>> 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 
>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__tools.ietf.org&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=IsdTJ6aSeBNSSLkVINQYQNQkfE9P-u1y5XX5UWwn_Mc&e=>. 
>>
>>
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/ 
>> <https://urldefense.proofpoint.com/v2/url?u=ftp-3A__ftp.ietf.org_internet-2Ddrafts_&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=nTLjy0PEOtD6YPTrGm-XSaWEAWSxs_Tt4Wy7Bj2QzUo&e=> 
>>
>>
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>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ietf.org_shadow.html&d=DwMFaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=-DXB84eU9m4cIlq2OOcCJCQQAwJXQQswyu3F0kG0VNo&m=yF0495B-NVp5DIlASsUbsM45SPzz8uoC8OecJguM3vA&s=d7rR32qUs_sytae8S7msinAcVI7aDCB9yocrL2B8YkU&e=> 
>>
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