Re: [xrblock] 2nd WGLC for draft-ietf-xrblock-rtcp-xr-synchronization

"Roni Even" <> Sun, 12 May 2013 06:28 UTC

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From: "Roni Even" <>
To: "'Qin Wu'" <>, "'Shida Schubert'" <>, "'xrblock'" <>
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Date: Sun, 12 May 2013 09:27:52 +0300
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Cc: 'xrblock-chairs' <>
Subject: Re: [xrblock] 2nd WGLC for draft-ietf-xrblock-rtcp-xr-synchronization
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Hi Qin,

My only reason for option 2 is to keep the header the same. There is no
other reason



From: Qin Wu [] 
Sent: 10 May, 2013 4:05 AM
To: Roni Even; 'Shida Schubert'; 'xrblock'
Cc: 'xrblock-chairs'
Subject: RE: [xrblock] 2nd WGLC for



Thank for your comment, if I understand correctly, Initial Synchronization
Delay metric

Only needs to be reported once, i.e., at the beginning of the session since

the value of Initial Synchronization Delay metric usually is fixed and will

Not change at each report interval.

So I think your 1st option is more straightforward.




From: [] On Behalf
Of Roni Even
Sent: Thursday, May 09, 2013 10:15 PM
To: 'Shida Schubert'; 'xrblock'
Cc: 'xrblock-chairs'
Subject: Re: [xrblock] 2nd WGLC for



I reviewed the latest version. It looks OK.

I have one comment

The "reserved" field in section 3.2 should be 8 bits since the "I" field was

Another option is to keep the "I" field and say that it should be ignored

Roni Even


From: [] On Behalf
Of Shida Schubert
Sent: 08 May, 2013 4:56 AM
To: xrblock
Cc: xrblock-chairs
Subject: [xrblock] 2nd WGLC for draft-ietf-xrblock-rtcp-xr-synchronization


 This is an announcement of a 2 weeks XRBLOCK WG last call on 
"Report Block for Synchronization Delay and Offset Metrics Reporting" 
priort o requesting publication of the document as a proposed standard. 


 As per discussion at the last meeting, we are running a second 

WGLC on this draft.

Please send your comments, including nits, to the list by the

22nd of May

If you read the draft and you see no issues, concerns, or nits, please
express the fact that you have no issue progressing the draft on the
list as well. 

The latest version can be found here:


Shida as co-chair