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Packet Delay Variation Applicability Statement
RFC 5481

Yes

Lars Eggert
(Dan Romascanu)
(Ron Bonica)

No Objection

(Chris Newman)
(Cullen Jennings)
(David Ward)
(Mark Townsley)
(Ross Callon)

Note: This ballot was opened for revision 02 and is now closed.

Lars Eggert Yes

(Dan Romascanu; former steering group member) Yes

Yes ()

                            

(Jari Arkko; former steering group member) Yes

Yes (2009-01-07)
Good work. One small issue: I found this confusing:

  range(b) = b_max - b_min = D_max - D_min + A

Is "b" here a variable or does it represent buffering as earlier?
b_min does not appear elsewhere in the document, did you mean B_min?

(Lisa Dusseault; former steering group member) Yes

Yes (2009-01-07)
In section 4.4: 
   Note that the IPDV histogram will change
   if the sequence of delays is modified, but the PDV histogram will
   stay the same.

Should this be if the *order* of the sequence of delays is modified?  I believe if the sequence of delays were modified by changing the values, PDV histogram could change.  

On reading more of the document, I believe this wording is intentional; it seems that sequence is used as a synonym for order elsewhere in the doc.  For the record, I usually treat "sequence" as a synonym for "an ordered set" rather than "an order", but usage may differ in other communities.

(Ron Bonica; former steering group member) Yes

Yes ()

                            

(Chris Newman; former steering group member) No Objection

No Objection ()

                            

(Cullen Jennings; former steering group member) No Objection

No Objection ()

                            

(David Ward; former steering group member) No Objection

No Objection ()

                            

(Mark Townsley; former steering group member) No Objection

No Objection ()

                            

(Pasi Eronen; former steering group member) No Objection

No Objection (2009-01-06)
The document was unexpectedly easy to understand (even to someone who
doesn't have much background knowledge about this kind of metrics 
and measurements) -- good work!

(Ross Callon; former steering group member) No Objection

No Objection ()

                            

(Russ Housley; former steering group member) No Objection

No Objection (2009-01-08)
  In the Gen-ART Review by Christian Vogt, two suggestions were made:

  Section 1.1, 3rd paragraph:  "Lost and delayed packets are separated
  by a waiting time threshold." -- Since the waiting time threshold
  does not only apply to those packets that are lost or delayed, this
  sentence should be rephrased to:  "Packets for which one-way loss or
  delay is measured are...".

  Section 3.2, 4th-to-last paragraph:  "The error in the alignment
  process can be accounted for by a factor, A." -- A is an offset
  (addend) here, not a factor.

(Tim Polk; former steering group member) (was No Record, Discuss) No Objection

No Objection (2009-01-06)
The Summary of Comparisons table in section 7.3 would be more legible if there was
a blank line or a line of dashes separating each row.