Re: [TICTOC] draft-ietf-tictoc-1588overmpls-06 comments

Manav Bhatia <manavbhatia@gmail.com> Mon, 28 April 2014 16:53 UTC

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Date: Mon, 28 Apr 2014 22:23:03 +0530
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From: Manav Bhatia <manavbhatia@gmail.com>
To: "Meyer, Peter" <Peter.Meyer@microsemi.com>
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Subject: Re: [TICTOC] draft-ietf-tictoc-1588overmpls-06 comments
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Hi Peter,

This wasnt intentional. Let me take a look at why certain sections got
removed -- i think its an editorial issue.

Cheers, Manav



On Mon, Apr 28, 2014 at 10:10 PM, Meyer, Peter
<Peter.Meyer@microsemi.com> wrote:
>
> Hi Manav,
>
> I notice a number of changes to BC support that I did not see discussed on the reflector between draft-05 and draft-06.   Moving from draft-04 to draft-05 there was a significant effort to understand how TC (both P2P and E2E) and BC work with LER and LSR and there seemed to be agreement on the draft-05 text on that topic (I worked a good deal with Shahram on the text).
>
> Related, I would note that the ITU-T has finished the first network deployment scenarios, clock chain and performance specs for IEEE1588 with phase/time support and it uses BC in every network element (see ITU-T G.8275, G.8271, G.8273.2, etc.).
>
>
> Specifically my comments on draft-06 changes
>
> 1) Section 15.2 the following text has been deleted
> "When a Timing-capable/aware LSR behaves as a Boundary clock and receives a Timing message from a Timing-capable/aware MPLS interface.  The LSR performs the functions of a Boundary Clock in terminating the received Timing message and re-generating a new timing message over another (or the same) MPLS interface."
>
> 2) Section 15.3 the following text has been deleted
> "or BC"
>
> 3) Section 18, the Applicability statement was removed from draft-04 to draft-05.  It has now be re-introduced.  Text should include the draft-04 proposal (before the entire section was removed)
> "o  An LSR receives MPLS encapsulated Timing messages from a Timing LSP and terminates them, while performing the OC or BC functionality."
>
>
> Regards,
> Peter
>
>
>
>
> -----Original Message-----
> From: TICTOC [mailto:tictoc-bounces@ietf.org] On Behalf Of Bhatia, Manav (Manav)
> Sent: April 28, 2014 12:09 PM
> To: tictoc@ietf.org
> Subject: Re: [TICTOC] I-D Action: draft-ietf-tictoc-1588overmpls-06.txt
>
> Hi Yaakov,
>
> This version addresses the final set of comments that we received as per the MPLS and TICTOC WG last call.
>
> Can we move it further now?
>
> Cheers, Manav
>
>> -----Original Message-----
>> From: TICTOC [mailto:tictoc-bounces@ietf.org] On Behalf Of internet-
>> drafts@ietf.org
>> Sent: Monday, April 28, 2014 9:34 PM
>> To: i-d-announce@ietf.org
>> Cc: tictoc@ietf.org
>> Subject: [TICTOC] I-D Action: draft-ietf-tictoc-1588overmpls-06.txt
>>
>>
>> A New Internet-Draft is available from the on-line Internet-Drafts
>> directories.
>>  This draft is a work item of the Timing over IP Connection and
>> Transfer of Clock Working Group of the IETF.
>>
>>         Title           : Transporting Timing messages over MPLS
>> Networks
>>         Authors         : Shahram Davari
>>                           Amit Oren
>>                           Manav Bhatia
>>                           Peter Roberts
>>                           Laurent Montini
>>       Filename        : draft-ietf-tictoc-1588overmpls-06.txt
>>       Pages           : 36
>>       Date            : 2014-04-28
>>
>> Abstract:
>>    This document defines the method for transporting Timing messages
>>    such as PTP and NTP over an MPLS network.  The method allows for the
>>    easy identification of these PDUs at the port level to allow for
>> port
>>    level processing of these PDUs in both LERs and LSRs.
>>
>>    The basic idea is to transport Timing messages inside dedicated MPLS
>>    LSPs.  These LSPs only carry Timing messages and possibly Control
>> and
>>    Management packets, but they do not carry customer traffic.
>>
>>    Two methods for transporting Timing messages over MPLS are defined.
>>    The first method is to transport Timing messages directly over the
>>    dedicated MPLS LSP via UDP/IP encapsulation, which is suitable for
>>    MPLS networks.  The second method is to transport Timing messages
>>    inside a PW via Ethernet encapsulation.
>>
>>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-tictoc-1588overmpls/
>>
>> There's also a htmlized version available at:
>> http://tools.ietf.org/html/draft-ietf-tictoc-1588overmpls-06
>>
>> A diff from the previous version is available at:
>> http://www.ietf.org/rfcdiff?url2=draft-ietf-tictoc-1588overmpls-06
>>
>>
>> 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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