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[xrblock] 答复: WGLC on draft-ietf-xrblock-rtcp-xr-synchronization-02.txt

Qin Wu <bill.wu@huawei.com> Tue, 12 March 2013 18:32 UTC

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From: Qin Wu <bill.wu@huawei.com>
To: "Romascanu, Dan (Dan)" <dromasca@avaya.com>, Shida Schubert <shida@ntt-at.com>, xrblock <xrblock@ietf.org>
Thread-Topic: [xrblock] WGLC on draft-ietf-xrblock-rtcp-xr-synchronization-02.txt
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Date: Tue, 12 Mar 2013 18:31:44 +0000
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Subject: [xrblock] 答复: WGLC on draft-ietf-xrblock-rtcp-xr-synchronization-02.txt
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Okay, we will add text to clarify this in the update.

Regards!
-Qin
-----邮件原件-----
发件人: Romascanu, Dan (Dan) [mailto:dromasca@avaya.com] 
发送时间: 2013年3月12日 12:37
收件人: Qin Wu; Shida Schubert; xrblock
主题: RE: [xrblock] WGLC on draft-ietf-xrblock-rtcp-xr-synchronization-02.txt

Hi Qin,

Please provide text that indicates the references for the two metrics. 

Thanks and Regards,

Dan




> -----Original Message-----
> From: Qin Wu [mailto:bill.wu@huawei.com]
> Sent: Tuesday, March 12, 2013 5:32 PM
> To: Romascanu, Dan (Dan); Shida Schubert; xrblock
> Subject: 答复: [xrblock] WGLC on draft-ietf-xrblock-rtcp-xr-
> synchronization-02.txt
> 
> -----邮件原件-----
> 发件人: xrblock-bounces@ietf.org [mailto:xrblock-bounces@ietf.org] 代表
> Romascanu, Dan (Dan)
> 发送时间: 2013年3月7日 7:09
> 收件人: Shida Schubert; xrblock
> 主题: Re: [xrblock] WGLC on draft-ietf-xrblock-rtcp-xr-synchronization-
> 02.txt
> 
> Hi,
> 
> Please find below my comments:
> 
> 1. Are the Initial Synchronization Delay and the Synchronization Offset
> new metrics introduced by this draft? So it seems, as in section 2.1 the
> mention to the Initial Synchronization Delay has a reference to RFC
> 6051, but there is no metric definition there, while the explanation
> about the Synchronization Offset seems to include a self-contained
> definition. In this case I believe that the guidelines of using the
> template in RFC 6390 applies, and section 2.1 must be re-written on
> these lines.
> 
> [Qin]: Not sure we are dedicated to define new metrics in this draft,
> clarification is section 2.1 of RFC6051 gives a clear definition of
> initial synchronization delay and indicate how to calculate it. Table 7
> of BBF TR-126 gives a good example of synchronization offset, but TR126
> uses a different term.

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