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

The NLANR/DAST Beacon project has ended as of 12/31/2005. Community support is available at http://sourceforge.net/projects/multicastbeacon.
As of 9/14/2006 this beacon server is running on new hardware and is maintained by the NCSA Network Engineering group. Please contact neteng at ncsa dot edu with questions.

Time: Mon Nov 23 14:33:13 2009 CST | Page Refresh: 60 seconds | Started: Sun Nov 22 11:55:02 2009 | Beacons: 46
Target Multicast Group: 233.4.200.18 | 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 RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21 S22 S23 S24 S25 S26 S27 S28 S29   S30 S31 S32 S33 S34 S35 S36 S37 S38 S39   S40 S41 S42 S43 S44 S45
R0 teevee.aarnet.edu.au 192.94.63.33 168 0 NA 0 0 0 NA NA 0 0 NA R0 0 NA NA NA NA NA NA NA 0 NA R0 NA ** 0 NA 0 0 0 0 NA 0 R0 0 0 0 NA NA NA 0 NA NA 0 R0 0 0 NA NA 0 NA
R1 beacon.sapac.edu.au 129.127.96.120 140 0 NA NA 0 0 NA NA 0 0 0 R1 0 NA NA NA NA NA NA NA 0 NA R1 NA 0 0 0 0 NA 0 0 NA 0 R1 NA 0 0 NA 0 NA 0 NA 0 0 R1 0 0 0 NA 0 NA
R2 dawn.ml.unisa.edu.au 130.220.64.249 383 0 0 0 0 0 0 0 0 0 0 R2 0 0 NA NA NA NA NA NA 0 0 R2 NA 0 0 0 0 NA 0 0 0 0 R2 0 0 0 NA 0 NA 0 0 0 0 R2 0 0 0 0 0 NA
R3 crayon.ucc.usyd.edu.au 129.78.221.17 391 0 0 0 0 0 0 0 0 0 0 R3 0 0 NA NA NA NA NA NA 0 0 R3 NA 0 0 0 0 0 0 0 0 0 R3 0 0 0 NA 0 NA 0 0 0 0 R3 0 0 0 0 0 NA
R4 ddrive.cs.dal.ca 129.173.212.139 107 0 NA 0 0 0 NA NA 0 NA NA R4 NA 0 0 0 0 0 0 0 0 0 R4 NA 6 0 0 NA 0 0 0 NA 0 R4 0 0 0 0 0 0 0 0 0 NA R4 NA 0 NA 0 0 NA
R5 agvenue1.ucis.dal.ca 192.75.96.3 114 0 NA NA 0 0 NA NA 0 NA NA R5 NA 0 0 0 0 0 0 0 0 0 R5 NA 9 0 0 NA 0 0 0 NA 0 R5 0 0 0 0 0 0 0 0 0 NA R5 0 0 NA 0 0 NA
R6 antonius.amtc.nrc.ca 132.246.224.8 48 NA NA NA NA NA NA 0 0 0 0 R6 0 0 NA NA NA NA NA NA NA NA R6 NA NA NA NA NA NA NA NA NA NA R6 NA NA NA NA NA NA NA NA NA NA R6 NA NA NA NA NA NA
R7 lepidus.amtc.nrc.ca Unresolvable 77 0 NA NA 0 0 0 0 NA 0 0 R7 NA 0 0 0 0 0 0 0 0 NA R7 NA 0 0 0 NA NA NA 0 0 NA R7 0 0 0 0 0 0 0 0 0 0 R7 0 0 0 0 0 NA
R8 octavius.imsb.nrc.ca 132.246.2.39 76 0 NA NA 0 0 0 0 0 0 0 R8 NA 0 0 0 0 0 0 0 0 NA R8 NA 18 0 0 NA NA 0 0 0 0 R8 0 0 0 0 0 0 0 0 0 0 R8 0 0 NA 0 0 NA
R9 zootv.nrc.ca 132.246.2.28 66 0 NA NA NA NA NA NA 0 0 NA R9 0 0 0 0 0 0 0 0 NA 0 R9 NA 6 0 0 0 NA 0 0 NA NA R9 0 0 0 0 0 NA NA NA NA 0 R9 NA 0 0 NA 0 NA
# Hostname IP Address RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21 S22 S23 S24 S25 S26 S27 S28 S29   S30 S31 S32 S33 S34 S35 S36 S37 S38 S39   S40 S41 S42 S43 S44 S45
R10 collab3.westgrid.ca 142.231.1.123 149 0 NA NA 0 0 0 0 0 0 0 R10 NA 0 0 0 0 0 0 0 0 0 R10 NA 0 0 0 NA 0 0 0 0 NA R10 0 0 0 0 0 0 0 0 0 0 R10 0 0 0 0 0 NA
R11 venueserver.westgrid.ca 142.231.1.121 131 0 NA NA 0 0 0 0 0 0 0 R11 NA 0 0 0 0 0 0 0 0 NA R11 NA 0 0 0 NA NA 0 0 0 NA R11 0 0 0 0 0 0 0 0 0 0 R11 NA 0 0 0 0 NA
R12 zam137.zam.kfa-juelich.de 134.94.106.10 173 0 0 0 0 0 0 0 0 0 0 R12 NA NA 0 0 0 0 0 0 0 0 R12 NA 0 0 0 NA 0 0 0 0 0 R12 NA 0 0 0 0 0 0 0 0 0 R12 NA 0 0 0 0 0
R13 dvb2.halifax.rwth-aachen.de Unresolvable 107 0 NA 0 0 NA 0 0 0 0 NA R13 NA 0 NA 0 0 0 NA 0 NA 0 R13 NA 0 0 0 NA 0 0 0 0 NA R13 0 0 0 0 0 0 NA 0 NA 0 R13 NA 0 NA 0 0 0
R14 kn01.halifax.rwth-aachen.de Unresolvable 141 0 0 0 0 NA NA NA 0 0 NA R14 NA NA 0 0 0 NA 0 0 NA 0 R14 NA 0 0 0 NA 0 0 0 NA 0 R14 NA 0 0 0 NA NA NA 0 NA 0 R14 NA 0 NA 0 NA 0
R15 server.halifax.rwth-aachen.de Unresolvable 82 0 NA 0 0 NA NA NA 0 0 NA R15 NA NA NA 0 0 NA NA 0 NA 0 R15 NA 0 0 0 NA 0 0 0 NA NA R15 NA 0 0 0 NA NA NA 0 NA 0 R15 NA 0 NA 0 NA NA
R16 torwaechter.halifax.rwth-aachen.de Unresolvable 174 0 0 0 0 NA NA NA NA 0 NA R16 NA NA 0 0 0 NA 0 0 NA 0 R16 NA 0 NA 0 NA 0 NA 0 NA 0 R16 NA 0 0 0 NA NA NA 0 NA 0 R16 NA 0 NA 0 NA 0
R17 streams.rz.rwth-aachen.de 137.226.33.60 152 0 0 0 0 NA NA NA 0 0 NA R17 NA NA 0 0 0 NA 0 0 NA 0 R17 NA 0 0 0 NA 0 0 0 NA 0 R17 NA 0 0 0 NA NA NA 0 NA 0 R17 NA 0 NA 0 NA 0
R18 www.coaps.fsu.edu 146.201.212.64 155 0 0 0 0 0 0 0 0 0 0 R18 NA 0 0 0 0 0 0 0 0 0 R18 NA 97 0 0 NA 0 0 0 0 0 R18 0 0 0 0 0 0 0 0 0 0 R18 NA 0 NA 0 0 0
R19 pulsar.noc.gatech.edu 130.207.166.66 408 0 0 0 0 0 0 0 0 0 0 R19 0 0 0 0 0 0 0 0 0 0 R19 NA 0 0 0 0 NA 0 0 0 0 R19 0 0 0 0 0 0 0 0 0 0 R19 NA 0 0 0 0 0
# Hostname IP Address RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21 S22 S23 S24 S25 S26 S27 S28 S29   S30 S31 S32 S33 S34 S35 S36 S37 S38 S39   S40 S41 S42 S43 S44 S45
R20 netview.its.iastate.edu 129.186.6.240 147 0 0 0 0 NA 0 0 0 0 0 R20 0 0 0 0 0 0 0 0 NA 0 R20 0 110 0 0 0 0 0 0 0 0 R20 0 0 0 0 0 0 0 0 0 0 R20 0 0 0 0 0 0
R21 foghorn.cs.mtsu.edu 161.45.164.173 89 0 0 0 0 152 NA ** 0 NA 0 R21 210 ** NA 0 0 0 0 0 0 0 R21 NA 0 0 0 125 NA 0 NA NA NA R21 0 0 NA 0 0 0 0 0 NA 0 R21 NA 0 NA 0 150 0
R22 ns-beacon.mtsu.edu 161.45.190.10 94 0 0 0 0 0 NA NA 0 NA 0 R22 0 NA NA 0 0 0 0 0 0 0 R22 NA 0 0 0 0 NA 0 NA NA 0 R22 0 0 0 0 0 0 0 0 NA 0 R22 NA 0 NA 0 69 0
R23 netmenderx.cc.ndsu.nodak.edu 134.129.95.122 173 0 0 0 0 0 NA NA 0 0 0 R23 0 0 0 0 0 0 0 0 0 0 R23 NA 7 0 0 0 0 0 0 NA 0 R23 0 0 0 0 0 0 0 1 0 0 R23 0 0 0 0 NA 0
R24 vanguard.itt.purdue.edu 128.210.191.242 425 0 0 0 0 0 0 NA 0 NA NA R24 0 0 0 0 0 0 0 0 0 0 R24 0 0 0 0 0 0 0 0 NA 0 R24 0 0 0 0 0 0 0 0 0 0 R24 0 0 0 0 0 0
R25 silver.sdsmt.edu 151.159.1.1 152 0 NA NA 0 NA 0 0 0 0 0 R25 NA 0 0 0 0 0 0 0 NA 0 R25 NA 0 0 0 NA 0 0 0 0 0 R25 0 0 0 0 0 0 0 0 0 0 R25 0 0 0 0 0 NA
R26 dwarf.ua.edu 130.160.4.113 24 NA NA NA NA NA NA NA NA NA NA R26 NA NA NA NA NA NA NA NA NA NA R26 NA NA NA NA NA NA 0 NA NA NA R26 NA NA NA NA NA NA NA NA NA NA R26 NA NA NA NA NA NA
R27 npad.ucar.edu 192.43.244.8 153 0 0 0 0 NA 0 NA 0 0 0 R27 NA 0 0 0 0 0 0 0 NA 0 R27 NA 57 0 0 NA NA 0 0 0 0 R27 0 0 0 0 0 0 NA 0 NA 0 R27 0 0 NA 0 0 0
R28 faranth.ci.uiuc.edu 192.17.24.169 127 0 0 0 0 0 0 0 0 0 0 R28 0 0 0 0 0 0 0 0 0 0 R28 0 4 0 0 0 0 0 0 0 0 R28 0 0 0 0 0 0 0 0 0 0 R28 0 0 0 0 0 0
R29 jhereg.ncsa.uiuc.edu 141.142.2.55 280 0 0 0 NA NA 0 0 0 NA 0 R29 0 0 0 0 0 0 0 0 NA 0 R29 0 17 NA 0 0 0 NA 0 0 0 R29 0 0 0 0 0 0 NA 0 0 0 R29 0 0 NA 0 0 0
# Hostname IP Address RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21 S22 S23 S24 S25 S26 S27 S28 S29   S30 S31 S32 S33 S34 S35 S36 S37 S38 S39   S40 S41 S42 S43 S44 S45
R30 ssb3.nts.umn.edu 134.84.88.4 159 0 0 0 0 0 0 0 0 0 0 R30 NA 0 0 0 0 0 0 0 0 0 R30 NA 10 0 0 NA 0 0 0 0 0 R30 0 0 0 0 0 0 0 0 0 0 R30 NA 0 0 0 0 0
R31 multicast.chpc.utah.edu 155.101.3.100 143 NA 0 0 0 0 12 17 0 0 NA R31 0 0 NA 0 0 NA NA 0 NA 0 R31 NA 0 NA 0 0 0 NA 0 0 0 R31 NA 0 0 0 NA NA NA 0 NA 0 R31 0 NA NA 0 NA 0
R32 mbone-test.cs.wisc.edu 128.105.40.15 158 0 0 0 0 NA 0 0 0 0 0 R32 0 0 0 0 0 0 0 0 NA 0 R32 0 9 0 0 0 0 0 0 0 0 R32 0 0 0 0 0 0 NA 0 0 0 R32 0 0 0 0 0 0
R33 lokerikko.tv.funet.fi 193.166.16.111 135 0 0 0 0 NA NA NA 0 0 NA R33 NA NA 0 0 0 0 0 0 NA 0 R33 NA 0 0 0 NA 0 0 0 NA 0 R33 NA 0 0 0 NA NA NA 0 NA 0 R33 NA 0 NA 0 NA 0
R34 ipc3.ameslab.gov 147.155.93.7 138 0 0 0 0 0 NA NA 0 NA NA R34 NA NA 0 0 0 0 0 0 0 0 R34 NA 80 0 0 NA 0 0 NA NA 0 R34 NA 0 NA 0 NA 0 0 0 NA NA R34 NA 0 0 0 0 NA
R35 nfc1.grnet.gr 194.177.210.213 513 0 0 0 0 0 0 0 0 0 0 R35 0 0 0 0 0 0 0 0 0 0 R35 NA 0 0 0 0 NA 0 0 0 0 R35 0 0 0 0 0 0 0 0 0 0 R35 0 0 0 0 0 0
R36 usul.es.net 198.128.1.31 166 0 0 0 0 0 NA NA 0 NA NA R36 0 0 0 0 0 0 0 0 0 0 R36 0 5 0 0 0 0 0 0 NA 0 R36 0 0 0 0 0 0 0 0 0 NA R36 0 0 NA 0 0 0
R37 ecu-beacon.ncren.net 128.109.58.21 126 0 0 0 0 0 NA NA 0 NA NA R37 NA 0 0 0 0 0 0 0 0 NA R37 NA 79 0 0 NA NA 0 0 NA 0 R37 0 0 0 0 0 0 0 0 0 NA R37 NA 0 NA 0 0 0
R38 ws-beacon.ncren.net 128.109.1.249 None NA NA NA NA NA NA NA NA NA NA R38 NA NA NA NA NA NA NA NA NA NA R38 NA NA NA NA NA NA NA NA NA NA R38 NA NA NA NA NA NA NA 0 0 NA R38 NA NA NA NA 0 NA
R39 mbeacon.civ.utwente.nl 130.89.244.17 9 NA NA NA NA NA NA NA NA NA NA R39 NA NA NA NA NA NA NA NA NA NA R39 NA NA NA NA NA NA NA NA NA NA R39 NA NA NA NA NA NA NA NA NA 0 R39 NA NA NA NA NA NA
# Hostname IP Address RRs S0 S1 S2 S3 S4 S5 S6 S7 S8 S9   S10 S11 S12 S13 S14 S15 S16 S17 S18 S19   S20 S21 S22 S23 S24 S25 S26 S27 S28 S29   S30 S31 S32 S33 S34 S35 S36 S37 S38 S39   S40 S41 S42 S43 S44 S45
R40 agbridge.sges.auckland.ac.nz 130.216.17.71 109 0 NA NA 0 0 0 0 0 0 0 R40 0 NA 0 0 0 0 0 0 0 0 R40 0 0 0 0 0 0 0 0 0 0 R40 NA 0 0 0 0 0 0 0 0 0 R40 0 0 0 0 0 NA
R41 vv2.ap-accessgrid.org 130.102.78.179 71 NA 0 0 0 NA NA NA 0 0 NA R41 NA NA NA NA NA NA NA NA NA 0 R41 NA NA 0 NA NA NA 0 0 NA NA R41 NA 0 0 NA NA NA NA NA NA 0 R41 NA NA NA NA NA NA
R42 black.ivec.org 192.65.130.134 36 0 NA NA NA 0 NA NA 0 NA 0 R42 NA 0 NA NA NA NA NA NA 0 NA R42 NA 0 0 0 NA NA 0 0 NA 0 R42 0 0 0 NA 0 NA 0 NA 0 NA R42 NA 0 0 NA 0 NA
R43 canot.ivec.org 192.65.130.158 32 0 NA NA NA 0 NA NA 0 NA 0 R43 NA 0 NA NA NA NA NA NA 0 NA R43 NA 0 0 0 NA NA 0 0 NA 0 R43 0 0 0 NA 0 NA 0 NA 0 NA R43 NA 0 0 NA 0 NA
R44 newsroom.pewtrusts.org 207.103.6.100 None 0 0 0 0 13 NA NA 0 NA NA R44 NA NA 0 NA 0 0 0 0 10 NA R44 NA NA 0 0 NA NA 0 NA NA 0 R44 NA NA NA NA NA NA 11 NA NA NA R44 NA NA NA NA NA 0
R45 newtrillian.jogback.se 212.247.200.145 85 0 0 0 1 NA NA NA NA NA NA R45 NA NA 0 0 0 0 0 0 0 0 R45 NA 0 0 0 NA 0 NA 0 0 0 R45 NA 0 0 0 0 0 NA 0 0 NA R45 NA 0 0 0 NA 0

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.