Ethereal-users: Re: [Ethereal-users] RTCP for VoIP QoS

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From: Martin Mathieson <martin.mathieson@xxxxxxxxxxxx>
Date: Tue, 28 Mar 2006 11:37:06 +0100
Aisling wrote:


Hello Martin,

Many thanks for the reply and the help. You've cleared a few of my
queries and I now understand where the LSR value is derived from (Thank
you) and I have made sure that RTCP is captured in both directions (I
attach a capture file as an example) - We just have two more queries
which I hope you don't mind helping us with:

To calculate the delay the formula A-LSR-DLSR is used. A simple drawing
is usually provided in examples

Sender                receiver
|                        |
|  SR: NTP timestamp     |
| ---------------->      |
|                        |
|                        |  DLSR
| | | | | RR:LSR, DLSR | 
A|  <----------------     |
|                        |
| | | | 
|                        |


This looks very simple and I understand this. My problems are this:

1) This diagram is too simplistic because in reality the packet going
from sender to receiver would be a compound packet (CP1)containing a SR
AND RR (not just a SR as shown here) and the return packet from the
receiver to the sender would also be a compound packet (CP2) with SR and
RR. Therefore given the capture file, would I simply take the LSR and
DLSR values from the receiver report in the second compound packet and
the timestamp on the sender side for the A value? i.e. (ignore the RR in
the CP1 and the SR in CP2?)
The 'Source 1' information within the same compound packet should be identical, so I wouldn't worry about this. Note that the calculation done in ethereal couldn't distinguish between multiple Sources (e.g. audio + video that appear as 'Source 1' and 'Source 2'), but I've never seen this in practice. 


2) In this diagram we know who the sender and receiver are, however it
is my understanding that in a two way phone call either party can be the
sender or receiver depending on who's speaking (so really its nothing
got to do with who initiated the call). You will see from the capture
file that phone B (157.190.70.65) sends a RTCP compound packet to phone
A (157.190.74.153)first even though phone A initiated the call.
Therefore at the beginning does this make phone b the sender and phone A
the receiver? And if this is the case must I check the source and
destination fields every time first before carrying out the delay
calculation to figure out who is the sender and who is the receiver?
The sender is any side that has sent RTP packets in the period since its last SR or RR, so yes, you must take into consideration the direction of the RTCP packet (as the Ethereal calculation does). Both sides are sending and receiving Sender Reports from the other side. As well as looking at the direction, the code in packet-rtcp.c stores in conversation data the last timestamp, and only does the calculation if the received LSR field matches what was last sent out.
I find capture files much easier to browse than the text output below, but I note that the DLSR is 1 in every case. I haven't checked to see if there are sensible/matching entries in the LSR fields, but it does look as if the client/stack being used for your tests isn't working. A useful addition to packet-rtcp.c might be to add the generated field back to the packet referred to in the LSR even when no calculation is being done...
I've seen round-trips being calculated successfully using different stacks at around the time I implemented this calculation, but I don't remember which clients or test equipment/applications I was using at the time. Please consider experimenting with other clients. If I get time (not this week), I'll dig out a minimal capture showing a calculation that can be done and upload it to the wiki with some explanation - you're not the first person to be confused by this stuff. 

Regards,
Martin



Many thanks for the advice so far - It is much appreciated,
Aisling.

-----Original Message-----
From: ethereal-users-bounces@xxxxxxxxxxxx
[mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Martin
Mathieson
Sent: 27 March 2006 11:14
To: Ethereal user support
Subject: Re: [Ethereal-users] RTCP for VoIP QoS

Aisling,  I've written some answers below prefixed by [Martin].

Hello Martin,

My name is Aisling and I am helping David Grau with his project (his
project as part of an undergraduate degree but this also interests me
as part of my postgraduate degree).

I have read rfc 3550 with particular emphasis on the part detailing
how the round trip time (RTT) should be calculated.  The formula
"A-DLSR-LSR" is provided and an example "46864.500 - 5.250 -
46853.125 = 6.125 seconds" is given. We are working from a tethereal
capture file - This was running on the same pc as one of the
softphones involved in the call but as the two softphones calling
each other are on the same LAN segment we should have captured all
that RTCP is captured in both directions (I
attach a capture file as an example) - We just have two more queries
which I hope you don't mind helping us with:the necessary RTCP sender and receiver reports anyway.I have attached
the sample capture file.

[Martin]  Note that within the same LAN segment you are unlikely to see
any
interesting roundtrip delays.  You can set the RTCP preference 'Minimum
rountrip calculations to report'
to 0 milliseconds.



Myself and David are not clear on a few things:

1) The A field is when the receiver report block is received. Is this
referring to the NTP timestamp? I am struggling to identify this from
the tethereal capture (perhaps the capture format is slightly
non-standard?)and if you could point this out from the attached
capture file we would greatly appreciate it.

[Martin]  'A' seems to be the middle 32 bits from the NTP timestamp,
whose units would be 1/65536th seconds. All 3 quantities in the formula you quote are in these units, though 
they are converted into seconds to make it easier to read.



2)The LSR field is said to be the middle 32 bits of the NTP timestamp
and the NTP timestamp is made up of the MSW and LSW. So if the
figures are MSW=3350115113 and LSW=493921239 I still fail to
understand why the LSR=3005816176...this is based on the figures from
the attach capture file.

[Martin]  MSW and LSW are being displayed as decimals, it is easier to
look at them as hex.
MSW = 0xC7AEB329,   LSW = 0x0x1D70A3D7

The middle word in this case from this would be 0xB3291D70 = 3005816176

However, remember that the LSR in a frame refers to the timestamp seen
in a message seen in the opposite direction
(i.e. in a received message it refers to the middle-bytes from the time
of a frame you previously sent).



3)the DLSR does appear to be 1 for all captures but as you said this
could be for the reasons that you described before.

[Martin] As in the other example I looked at, there appears to be only
RTP/RTCP in one direction, so these values looke made up / default to
me.
You maybe need to make sure that someone is speaking in both directions
to that RTP and SRs are sent.  No calculation can be done until a SR in
one direction
refers to an SR in the previous direction (by matching its LSR and
having a sensible DLSR filled in).



4)Based on the above points and the attached capture file could you
give an example with figures (from the file) of using A-DLSR-LSR?

[Martin]  Sorry, I don't have ready access to my old capture collection
at the moment.  I realise that the way this calculation is done is a bit
complex.
I notice that RFC 3611 allows non-senders to calculate roundtrip delays,
but I've never seen it used in a real client.

I really do hope this helps you.
Best Regards,
Martin


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------------------------------------------------------------------------

Frame 209 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:49.283322000
   Time delta from previous packet: 0.017324000 seconds
   Time since reference or first frame: 6.849143000 seconds
   Frame Number: 209
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (DellPcba_72:f2:26)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x03e0 (992)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6b46 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x6367 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447226
   Timestamp, LSW: 3822520893
   RTP timestamp: 0
   Sender's packet count: 0
   Sender's octet count: 0
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 0
           Sequence number cycles count: 0
           Highest sequence number received: 0
       Interarrival jitter: 0
       Last SR timestamp: 1224401879
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 0
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 0
           Sequence number cycles count: 0
           Highest sequence number received: 0
       Interarrival jitter: 0
       Last SR timestamp: 1224401879
       Delay since last SR timestamp: 1

Frame 216 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:49.336164000
   Time delta from previous packet: 0.022169000 seconds
   Time since reference or first frame: 6.901985000 seconds
   Frame Number: 216
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (DellPcba_72:f2:26)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7a9b (31387)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf38a (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x9d78 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447009
   Timestamp, LSW: 1421634175
   RTP timestamp: 48000
   Sender's packet count: 2
   Sender's octet count: 320
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 131074
           Sequence number cycles count: 2
           Highest sequence number received: 2
       Interarrival jitter: 0
       Last SR timestamp: 1210143932
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 3
           Sequence number cycles count: 0
           Highest sequence number received: 3
       Interarrival jitter: 0
       Last SR timestamp: 1210143932
       Delay since last SR timestamp: 1

Frame 219 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:49.345059000
   Time delta from previous packet: 0.008542000 seconds
   Time since reference or first frame: 6.910880000 seconds
   Frame Number: 219
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (DellPcba_72:f2:26)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x03e4 (996)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6b20 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0x89c2 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447226
   Timestamp, LSW: 4093103833
   RTP timestamp: 480
   Sender's packet count: 3
   Sender's octet count: 480
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 196611
           Sequence number cycles count: 3
           Highest sequence number received: 3
       Interarrival jitter: 0
       Last SR timestamp: 1224406007
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 4
           Sequence number cycles count: 0
           Highest sequence number received: 4
       Interarrival jitter: 2
       Last SR timestamp: 1224406007
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 2384954224
       Identifier: 2384954224
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 21
           Text: unknown@157.190.70.65

Frame 226 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:49.397302000
   Time delta from previous packet: 0.020662000 seconds
   Time since reference or first frame: 6.963123000 seconds
   Frame Number: 226
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (DellPcba_72:f2:26)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x7aa0 (31392)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf363 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0x71ea (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447009
   Timestamp, LSW: 1679332213
   RTP timestamp: 48640
   Sender's packet count: 6
   Sender's octet count: 960
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 393222
           Sequence number cycles count: 6
           Highest sequence number received: 6
       Interarrival jitter: 0
       Last SR timestamp: 1210147864
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 6
           Sequence number cycles count: 0
           Highest sequence number received: 6
       Interarrival jitter: 1
       Last SR timestamp: 1210147864
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 3636351121
       Identifier: 3636351121
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 22
           Text: unknown@157.190.74.153

Frame 796 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:54.313362000
   Time delta from previous packet: 0.015229000 seconds
   Time since reference or first frame: 11.879183000 seconds
   Frame Number: 796
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x04e1 (1249)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6a45 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x42d7 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447231
   Timestamp, LSW: 3955664880
   RTP timestamp: 40640
   Sender's packet count: 254
   Sender's octet count: 40640
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 16646398
           Sequence number cycles count: 254
           Highest sequence number received: 254
       Interarrival jitter: 0
       Last SR timestamp: 1224731590
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 255
           Sequence number cycles count: 0
           Highest sequence number received: 255
       Interarrival jitter: 54
       Last SR timestamp: 1224731590
       Delay since last SR timestamp: 1

Frame 802 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:54.358230000
   Time delta from previous packet: 0.013425000 seconds
   Time since reference or first frame: 11.924051000 seconds
   Frame Number: 802
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7ba0 (31648)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf285 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xccb2 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447014
   Timestamp, LSW: 1537598292
   RTP timestamp: 88800
   Sender's packet count: 257
   Sender's octet count: 41120
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 16843009
           Sequence number cycles count: 257
           Highest sequence number received: 257
       Interarrival jitter: 0
       Last SR timestamp: 1210473381
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 257
           Sequence number cycles count: 0
           Highest sequence number received: 257
       Interarrival jitter: 106
       Last SR timestamp: 1210473381
       Delay since last SR timestamp: 1

Frame 1438 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:59.365180000
   Time delta from previous packet: 0.020041000 seconds
   Time since reference or first frame: 16.931001000 seconds
   Frame Number: 1438
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7ca0 (31904)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf185 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xc605 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447019
   Timestamp, LSW: 1567663063
   RTP timestamp: 129280
   Sender's packet count: 510
   Sender's octet count: 81600
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 33423870
           Sequence number cycles count: 510
           Highest sequence number received: 510
       Interarrival jitter: 0
       Last SR timestamp: 1210801520
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 510
           Sequence number cycles count: 0
           Highest sequence number received: 510
       Interarrival jitter: 239
       Last SR timestamp: 1210801520
       Delay since last SR timestamp: 1

Frame 1440 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:16:59.376260000
   Time delta from previous packet: 0.010698000 seconds
   Time since reference or first frame: 16.942081000 seconds
   Frame Number: 1440
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x05e3 (1507)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6943 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x0979 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447236
   Timestamp, LSW: 4226247819
   RTP timestamp: 81600
   Sender's packet count: 510
   Sender's octet count: 81600
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 33423870
           Sequence number cycles count: 510
           Highest sequence number received: 510
       Interarrival jitter: 0
       Last SR timestamp: 1225063399
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 511
           Sequence number cycles count: 0
           Highest sequence number received: 511
       Interarrival jitter: 134
       Last SR timestamp: 1225063399
       Delay since last SR timestamp: 1

Frame 1913 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:03.406805000
   Time delta from previous packet: 0.005582000 seconds
   Time since reference or first frame: 20.972626000 seconds
   Frame Number: 1913
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x06b1 (1713)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6853 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0x9897 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447241
   Timestamp, LSW: 64424509
   RTP timestamp: 114400
   Sender's packet count: 715
   Sender's octet count: 114400
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 46858955
           Sequence number cycles count: 715
           Highest sequence number received: 715
       Interarrival jitter: 0
       Last SR timestamp: 1225327575
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 716
           Sequence number cycles count: 0
           Highest sequence number received: 716
       Interarrival jitter: 220
       Last SR timestamp: 1225327575
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 2384954224
       Identifier: 2384954224
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 21
           Text: unknown@157.190.70.65

Frame 1917 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:03.441161000
   Time delta from previous packet: 0.002914000 seconds
   Time since reference or first frame: 21.006982000 seconds
   Frame Number: 1917
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x7d6f (32111)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf094 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0xfa9e (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447023
   Timestamp, LSW: 1894080578
   RTP timestamp: 162240
   Sender's packet count: 716
   Sender's octet count: 114560
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 46924492
           Sequence number cycles count: 716
           Highest sequence number received: 716
       Interarrival jitter: 0
       Last SR timestamp: 1211068645
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 718
           Sequence number cycles count: 0
           Highest sequence number received: 718
       Interarrival jitter: 337
       Last SR timestamp: 1211068645
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 3636351121
       Identifier: 3636351121
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 22
           Text: unknown@157.190.74.153

Frame 2017 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:04.406654000
   Time delta from previous packet: 0.015315000 seconds
   Time since reference or first frame: 21.972475000 seconds
   Frame Number: 2017
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x06e4 (1764)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6842 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x10c3 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447242
   Timestamp, LSW: 64424509
   RTP timestamp: 122400
   Sender's packet count: 765
   Sender's octet count: 122400
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 50135805
           Sequence number cycles count: 765
           Highest sequence number received: 765
       Interarrival jitter: 0
       Last SR timestamp: 1225393111
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 766
           Sequence number cycles count: 0
           Highest sequence number received: 766
       Interarrival jitter: 238
       Last SR timestamp: 1225393111
       Delay since last SR timestamp: 1

Frame 2020 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:04.411275000
   Time delta from previous packet: 0.004179000 seconds
   Time since reference or first frame: 21.977096000 seconds
   Frame Number: 2020
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7da3 (32163)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xf082 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x2c3f (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447024
   Timestamp, LSW: 1769526526
   RTP timestamp: 170240
   Sender's packet count: 766
   Sender's octet count: 122560
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 50201342
           Sequence number cycles count: 766
           Highest sequence number received: 766
       Interarrival jitter: 0
       Last SR timestamp: 1211132280
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 767
           Sequence number cycles count: 0
           Highest sequence number received: 767
       Interarrival jitter: 357
       Last SR timestamp: 1211132280
       Delay since last SR timestamp: 1

Frame 2529 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:09.425386000
   Time delta from previous packet: 0.018607000 seconds
   Time since reference or first frame: 26.991207000 seconds
   Frame Number: 2529
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7ea2 (32418)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xef83 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x9a51 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447029
   Timestamp, LSW: 1803886264
   RTP timestamp: 210880
   Sender's packet count: 1020
   Sender's octet count: 163200
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 66847740
           Sequence number cycles count: 1020
           Highest sequence number received: 1020
       Interarrival jitter: 0
       Last SR timestamp: 1211460485
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1020
           Sequence number cycles count: 0
           Highest sequence number received: 1020
       Interarrival jitter: 491
       Last SR timestamp: 1211460485
       Delay since last SR timestamp: 1

Frame 2535 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:09.468871000
   Time delta from previous packet: 0.003303000 seconds
   Time since reference or first frame: 27.034692000 seconds
   Frame Number: 2535
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x07e6 (2022)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6740 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xd614 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447247
   Timestamp, LSW: 335007449
   RTP timestamp: 163520
   Sender's packet count: 1022
   Sender's octet count: 163520
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 66978814
           Sequence number cycles count: 1022
           Highest sequence number received: 1022
       Interarrival jitter: 0
       Last SR timestamp: 1225724919
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1023
           Sequence number cycles count: 0
           Highest sequence number received: 1023
       Interarrival jitter: 331
       Last SR timestamp: 1225724919
       Delay since last SR timestamp: 1

Frame 3050 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:14.461332000
   Time delta from previous packet: 0.019937000 seconds
   Time since reference or first frame: 32.027153000 seconds
   Frame Number: 3050
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x7fa4 (32676)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xee81 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x66fc (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447034
   Timestamp, LSW: 1962800054
   RTP timestamp: 251520
   Sender's packet count: 1274
   Sender's octet count: 203840
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 83494138
           Sequence number cycles count: 1274
           Highest sequence number received: 1274
       Interarrival jitter: 0
       Last SR timestamp: 1211790589
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1274
           Sequence number cycles count: 0
           Highest sequence number received: 1274
       Interarrival jitter: 593
       Last SR timestamp: 1211790589
       Delay since last SR timestamp: 1

Frame 3055 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:14.499930000
   Time delta from previous packet: 0.018482000 seconds
   Time since reference or first frame: 32.065751000 seconds
   Frame Number: 3055
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x08e7 (2279)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x663f (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xded4 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447252
   Timestamp, LSW: 468151435
   RTP timestamp: 204160
   Sender's packet count: 1276
   Sender's octet count: 204160
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 83625212
           Sequence number cycles count: 1276
           Highest sequence number received: 1276
       Interarrival jitter: 0
       Last SR timestamp: 1226054631
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1276
           Sequence number cycles count: 0
           Highest sequence number received: 1276
       Interarrival jitter: 386
       Last SR timestamp: 1226054631
       Delay since last SR timestamp: 1

Frame 3356 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:17.437223000
   Time delta from previous packet: 0.006249000 seconds
   Time since reference or first frame: 35.003044000 seconds
   Frame Number: 3356
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x097d (2429)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x6587 (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0x5f84 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447255
   Timestamp, LSW: 197568496
   RTP timestamp: 228000
   Sender's packet count: 1425
   Sender's octet count: 228000
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 93390225
           Sequence number cycles count: 1425
           Highest sequence number received: 1425
       Interarrival jitter: 0
       Last SR timestamp: 1226247110
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1426
           Sequence number cycles count: 0
           Highest sequence number received: 1426
       Interarrival jitter: 425
       Last SR timestamp: 1226247110
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 2384954224
       Identifier: 2384954224
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 21
           Text: unknown@157.190.70.65

Frame 3360 (160 bytes on wire, 160 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:17.457907000
   Time delta from previous packet: 0.006875000 seconds
   Time since reference or first frame: 35.023728000 seconds
   Frame Number: 3360
   Packet Length: 160 bytes
   Capture Length: 160 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 146
   Identification: 0x803e (32830)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xedc5 (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 126
   Checksum: 0xadab (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447037
   Timestamp, LSW: 1979979923
   RTP timestamp: 276000
   Sender's packet count: 1427
   Sender's octet count: 228320
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 93521299
           Sequence number cycles count: 1427
           Highest sequence number received: 1427
       Interarrival jitter: 0
       Last SR timestamp: 1211987460
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1427
           Sequence number cycles count: 0
           Highest sequence number received: 1427
       Interarrival jitter: 655
       Last SR timestamp: 1211987460
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Source count: 1
   Packet type: Source description (202)
   Length: 7
   Chunk 1, SSRC/CSRC 3636351121
       Identifier: 3636351121
       SDES items
           Type: CNAME (user and domain) (1)
           Length: 22
           Text: unknown@157.190.74.153

Frame 3569 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:19.497402000
   Time delta from previous packet: 0.020006000 seconds
   Time since reference or first frame: 37.063223000 seconds
   Frame Number: 3569
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x80a7 (32935)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xed7e (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x311a (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447039
   Timestamp, LSW: 2121713844
   RTP timestamp: 292480
   Sender's packet count: 1530
   Sender's octet count: 244800
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 100271610
           Sequence number cycles count: 1530
           Highest sequence number received: 1530
       Interarrival jitter: 0
       Last SR timestamp: 1212120694
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1530
           Sequence number cycles count: 0
           Highest sequence number received: 1530
       Interarrival jitter: 698
       Last SR timestamp: 1212120694
       Delay since last SR timestamp: 1

Frame 3573 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:19.530866000
   Time delta from previous packet: 0.013173000 seconds
   Time since reference or first frame: 37.096687000 seconds
   Frame Number: 3573
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x09e8 (2536)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x653e (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xe642 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447257
   Timestamp, LSW: 601295421
   RTP timestamp: 244960
   Sender's packet count: 1531
   Sender's octet count: 244960
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 100337147
           Sequence number cycles count: 1531
           Highest sequence number received: 1531
       Interarrival jitter: 0
       Last SR timestamp: 1226384343
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1532
           Sequence number cycles count: 0
           Highest sequence number received: 1532
       Interarrival jitter: 453
       Last SR timestamp: 1226384343
       Delay since last SR timestamp: 1

Frame 4080 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:24.519414000
   Time delta from previous packet: 0.019943000 seconds
   Time since reference or first frame: 42.085235000 seconds
   Frame Number: 4080
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:0d:56:72:f2:26, Dst: 00:05:5f:c8:2c:0a
   Destination: 00:05:5f:c8:2c:0a (157.190.74.1)
   Source: 00:0d:56:72:f2:26 (157.190.74.153)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.74.153 (157.190.74.153), Dst Addr: 157.190.70.65 (157.190.70.65)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x81a7 (33191)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 128
   Protocol: UDP (0x11)
   Header checksum: 0xec7e (correct)
   Source: 157.190.74.153 (157.190.74.153)
   Destination: 157.190.70.65 (157.190.70.65)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0x6155 (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 3636351121
   Timestamp, MSW: 3352447044
   Timestamp, LSW: 2237677961
   RTP timestamp: 333120
   Sender's packet count: 1784
   Sender's octet count: 285440
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 116918008
           Sequence number cycles count: 1784
           Highest sequence number received: 1784
       Interarrival jitter: 0
       Last SR timestamp: 1212450144
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 208)
       Setup frame: 208
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 3636351121
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1784
           Sequence number cycles count: 0
           Highest sequence number received: 1784
       Interarrival jitter: 868
       Last SR timestamp: 1212450144
       Delay since last SR timestamp: 1

Frame 4088 (126 bytes on wire, 126 bytes captured)
   Arrival Time: Mar 27, 2006 12:17:24.593092000
   Time delta from previous packet: 0.013419000 seconds
   Time since reference or first frame: 42.158913000 seconds
   Frame Number: 4088
   Packet Length: 126 bytes
   Capture Length: 126 bytes
Ethernet II, Src: 00:05:5f:c8:2c:0a, Dst: 00:0d:56:72:f2:26
   Destination: 00:0d:56:72:f2:26 (157.190.74.153)
   Source: 00:05:5f:c8:2c:0a (157.190.74.1)
   Type: IP (0x0800)
Internet Protocol, Src Addr: 157.190.70.65 (157.190.70.65), Dst Addr: 157.190.74.153 (157.190.74.153)
   Version: 4
   Header length: 20 bytes
   Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
       0000 00.. = Differentiated Services Codepoint: Default (0x00)
       .... ..0. = ECN-Capable Transport (ECT): 0
       .... ...0 = ECN-CE: 0
   Total Length: 112
   Identification: 0x0ae9 (2793)
   Flags: 0x00
       0... = Reserved bit: Not set
       .0.. = Don't fragment: Not set
       ..0. = More fragments: Not set
   Fragment offset: 0
   Time to live: 127
   Protocol: UDP (0x11)
   Header checksum: 0x643d (correct)
   Source: 157.190.70.65 (157.190.70.65)
   Destination: 157.190.74.153 (157.190.74.153)
User Datagram Protocol, Src Port: 8001 (8001), Dst Port: 8001 (8001)
   Source port: 8001 (8001)
   Destination port: 8001 (8001)
   Length: 92
   Checksum: 0xacbd (correct)
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Sender Report (200)
   Length: 12
   Sender SSRC: 2384954224
   Timestamp, MSW: 3352447262
   Timestamp, LSW: 871878361
   RTP timestamp: 285920
   Sender's packet count: 1787
   Sender's octet count: 285920
   Source 1
       Identifier: 2384954224
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 117114619
           Sequence number cycles count: 1787
           Highest sequence number received: 1787
       Interarrival jitter: 0
       Last SR timestamp: 1226716151
       Delay since last SR timestamp: 1
Real-time Transport Control Protocol
   Stream setup by SDP (frame 73)
       Setup frame: 73
       Setup Method: SDP
   10.. .... = Version: RFC 1889 Version (2)
   ..0. .... = Padding: False
   ...0 0001 = Reception report count: 1
   Packet type: Receiver Report (201)
   Length: 7
   Sender SSRC: 2384954224
   Source 1
       Identifier: 3636351121
       SSRC contents
           Fraction lost: 0 / 256
           Cumulative number of packets lost: 0
       Extended highest sequence number received: 1788
           Sequence number cycles count: 0
           Highest sequence number received: 1788
       Interarrival jitter: 573
       Last SR timestamp: 1226716151
       Delay since last SR timestamp: 1


------------------------------------------------------------------------

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