Ethereal-users: RE: [Ethereal-users] RTCP for VoIP QoS
Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.
From: "Aisling" <ashling.odriscoll@xxxxxx>
Date: Tue, 28 Mar 2006 10:55:24 +0100
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?) 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? 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 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 _______________________________________________ Ethereal-users mailing list Ethereal-users@xxxxxxxxxxxx http://www.ethereal.com/mailman/listinfo/ethereal-users -------------------Legal Disclaimer--------------------------------------- The above electronic mail transmission is confidential and intended only for the person to whom it is addressed. Its contents may be protected by legal and/or professional privilege. Should it be received by you in error please contact the sender at the above quoted email address. Any unauthorised form of reproduction of this message is strictly prohibited. The Institute does not guarantee the security of any information electronically transmitted and is not liable if the information contained in this communication is not a proper and complete record of the message as transmitted by the sender nor for any delay in its receipt. -------------------Legal Disclaimer--------------------------------------- The above electronic mail transmission is confidential and intended only for the person to whom it is addressed. Its contents may be protected by legal and/or professional privilege. Should it be received by you in error please contact the sender at the above quoted email address. Any unauthorised form of reproduction of this message is strictly prohibited. The Institute does not guarantee the security of any information electronically transmitted and is not liable if the information contained in this communication is not a proper and complete record of the message as transmitted by the sender nor for any delay in its receipt.
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
- Follow-Ups:
- Re: [Ethereal-users] RTCP for VoIP QoS
- From: Martin Mathieson
- Re: [Ethereal-users] RTCP for VoIP QoS
- References:
- Re: [Ethereal-users] RTCP for VoIP QoS
- From: Martin Mathieson
- Re: [Ethereal-users] RTCP for VoIP QoS
- Prev by Date: Re: [Ethereal-users] Ethernet Taps
- Next by Date: Re: [Ethereal-users] RTCP for VoIP QoS
- Previous by thread: Re: [Ethereal-users] RTCP for VoIP QoS
- Next by thread: Re: [Ethereal-users] RTCP for VoIP QoS
- Index(es):
