Multicast Beacon v1.3-0   This page is showing: Local Jitter (%)

AARNet Multicast Beacon Server

Time: Fri Nov 21 21:15:57 2008 CST | Page Refresh: 60 seconds | Started: Fri Nov 21 3:59:13 2008 | Beacons: 22
Target Multicast Group: 233.70.142.1 | Client-to-Client (RTP) multicast traffic on port: 10002, RTCP traffic on port: 10003
TCP unicast reports going back to the Central Server on port 10004

Central Loss | Local Loss | Fract Loss | Central RTT | Local RTT | Central Jitter | Local Jitter | Beacon Info | History | Previous History

# Hostname IP Address SSRC RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21
R0 ag1-video.smartinternet.com.au 129.78.226.194 0x56005c68 149 0 0 0 0 0 0 0 0 0 0 R0 0 0 0 0 0 0 0 0 0 0 R0 0 0
R1 teevee.aarnet.edu.au 192.94.63.33 0x7253911d 252 0 0 0 0 0 0 0 0 0 0 R1 NA 0 0 0 0 0 0 0 0 0 R1 0 0
R2 ag-bridge.cqu.edu.au 203.27.221.247 0x2d5f50f5 113 0 0 NA 0 0 0 0 0 0 0 R2 NA 0 0 0 0 0 0 0 0 0 R2 0 0
R3 agb-capture.cqu.edu.au Unresolvable 0x73fb5648 46 NA 0 NA 0 0 0 0 0 0 0 R3 0 0 0 NA 0 0 NA 0 0 0 R3 NA NA
R4 agg-capture.cqu.edu.au Unresolvable 0x68b8a4d1 121 0 0 0 0 0 0 NA 0 0 0 R4 0 0 0 0 0 0 0 0 0 0 R4 0 0
R5 agm-capture.cqu.edu.au Unresolvable 0x3d9b81a7 121 0 0 0 0 0 0 NA 0 0 0 R5 0 0 0 0 0 0 0 0 0 0 R5 0 0
R6 agr-capture.cqu.edu.au Unresolvable 0x3af93301 108 0 0 0 0 NA NA NA 0 0 0 R6 NA NA NA 0 0 NA 0 NA 0 0 R6 0 0
R7 jastest.cqu.edu.au 138.77.14.15 0x6bd74710 97 0 0 NA 0 0 0 0 0 0 0 R7 0 0 0 NA 0 0 0 0 0 0 R7 0 0
R8 gk.cameo.flinders.edu.au 129.96.120.11 0x6b3de311 121 0 0 0 0 0 0 NA 0 0 NA R8 0 0 0 0 0 0 0 0 0 0 R8 0 0
R9 ag.maths.latrobe.edu.au 131.172.135.210 0x33cecc0b 103 0 0 0 0 0 0 0 0 0 0 R9 0 0 0 0 0 0 0 0 0 0 R9 0 0
# Hostname IP Address SSRC RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21
R10 timspc.its.monash.edu.au 130.194.85.61 0x142f54ac 144 0 0 0 0 0 0 NA 0 0 NA R10 0 0 0 0 0 0 0 0 0 0 R10 0 0
R11 ag1-display.its.dias.qut.edu.au 131.181.240.43 0x306dbdf6 133 0 0 0 0 0 0 NA 0 0 0 R11 0 0 0 0 0 0 0 0 0 0 R11 0 0
R12 beacon.sapac.edu.au 129.127.96.120 0x11926a94 194 0 0 0 0 0 0 NA 0 0 0 R12 0 0 0 NA NA 0 0 0 0 0 R12 0 0
R13 asok.ce.unisa.edu.au 130.220.65.218 0x2fecb429 220 0 0 0 0 0 0 0 0 0 0 R13 0 0 0 0 0 0 0 0 0 0 R13 0 0
R14 dawn.ml.unisa.edu.au 130.220.64.249 0x1dcb02b5 264 0 0 0 0 0 0 0 0 0 0 R14 0 0 0 0 0 0 0 0 0 0 R14 0 0
R15 clc-accgridvid.lab.lecture.uq.edu.au 130.102.102.85 0x53419369 133 0 0 0 0 0 0 NA 0 0 0 R15 0 0 0 0 0 0 0 0 0 0 R15 0 0
R16 agn-display.vislab.uq.edu.au 130.102.78.129 0x376c9b0b 133 0 0 0 0 0 0 NA 0 0 0 R16 0 0 0 0 0 0 0 0 0 0 R16 0 0
R17 ag2.wasp.uwa.edu.au 130.95.209.123 0x3ce82acf 121 0 0 0 0 0 0 NA 0 0 0 R17 0 0 0 0 0 0 0 0 0 0 R17 0 0
R18 agbridge-canberra.arcs.org.au 150.203.6.4 0x38b073f9 121 0 0 0 0 0 0 NA 0 0 0 R18 0 0 0 0 0 0 0 0 0 0 R18 0 0
R19 agbridge-melb.arcs.org.au 202.158.218.217 0x7db86986 132 0 0 0 0 0 0 NA 0 0 0 R19 0 0 0 0 0 0 0 0 0 0 R19 0 0
# Hostname IP Address SSRC RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21
R20 agbridge-perth.arcs.org.au 192.65.130.240 0x3f1dc8b4 121 0 0 0 0 0 0 NA 0 0 0 R20 0 0 0 0 0 0 0 NA 0 0 R20 0 0
R21 vv2.ap-accessgrid.org 130.102.78.179 0x11155124 250 NA NA 0 0 0 NA NA 0 0 0 R21 NA NA 0 NA NA 0 NA 0 0 0 R21 NA NA

Central Loss | Local Loss | Fract Loss | Central RTT | Local RTT | Central Jitter | Local Jitter | Beacon Info | History | Previous History

Diagnosing problems with your multicast setup | Contributed code and patches

Jitter is statistical variation in delay, measured in milliseconds, and represents short-term network congestion.

The "RRs" column is the count of RTP Receiver Reports received from each SR during the previous interval. For any given interval, the count of reports should be approximately the same. If your Beacon's report count is much lower than the others, it means your Beacon has only recently joined the multicast If you know you Beacon has been running for some time, it may be showing router-level multicast problems, which is why the option was included in this release of the Beacon. If your Beacon is joining and leaving and joining and leaving, this it what that would look like.

Please share your comments, questions, bug reports, concerns, and feedback with us via the Beacon listserv. Please note this list can only be posted to by SUBSCRIBERS, in order to keep it spam-free. Non-subscriber email is automatically discarded. You can subscribe to the list by sending an email to "majordomo /at/ dast.nlanr.net", with "subscribe beacon /at/ dast.nlanr.net" (with real "at" signs, of course) in the body. This list is publicly archived at http://archive.ncsa.uiuc.edu/lists/beacon.

Another way to contact us is to use the DAST contact webform.