Multicast Beacon v1.3-0   This page is showing: Fractional Loss (%)

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 Sep 8 12:32:06 2008 CST | Page Refresh: 60 seconds | Started: Mon Sep 8 11:30:03 2008 | Beacons: 42
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
R0 beacon.sapac.edu.au 129.127.96.120 180 0 NA NA 0 0 0 NA NA NA 0 R0 0 0 NA NA 0 0 0 0 0 NA R0 0 0 NA NA NA 0 0 0 0 NA R0 0 0 NA 0 15 NA 0 NA 0 1 R0 NA NA
R1 asok.ce.unisa.edu.au 130.220.65.218 510 25 38 67 91 30 85 73 49 16 56 R1 48 93 78 41 34 65 91 91 10 62 R1 43 19 97 76 54 2 0 98 92 14 R1 88 73 1 48 3 16 7 17 92 27 R1 0 0
R2 dawn.ml.unisa.edu.au 130.220.64.249 458 33 83 52 62 19 87 87 24 38 99 R2 37 57 87 21 3 1 39 8 1 33 R2 3 0 23 71 47 64 15 18 47 1 R2 51 12 8 76 22 52 34 93 26 91 R2 0 0
R3 ubuntu.radio-canada.ca Unresolvable 12 NA NA NA 0 0 0 NA NA NA 0 R3 0 NA NA NA 0 0 NA 1 0 NA R3 0 0 0 NA NA 0 0 NA NA NA R3 0 0 NA NA 7 1 0 NA 0 0 R3 NA NA
R4 collab3.westgrid.ca 142.231.1.123 12 NA NA 0 0 0 0 NA NA NA 0 R4 0 NA NA 0 0 0 NA 0 0 NA R4 0 0 0 NA NA 0 0 NA NA NA R4 0 0 NA NA 14 0 0 NA 0 0 R4 NA NA
R5 streams.rz.rwth-aachen.de 137.226.33.60 27 0 NA 0 NA 0 NA NA NA NA NA R5 0 0 NA 1 0 NA NA 0 0 NA R5 0 0 0 0 NA 0 0 0 NA 0 R5 0 NA NA 0 3 0 NA NA NA NA R5 NA NA
R6 perfmon-control.internet2.edu 207.75.165.71 6 NA NA NA NA 0 NA 0 0 NA 0 R6 0 0 0 1 0 0 0 0 NA 0 R6 NA NA 0 0 0 0 0 0 NA NA R6 0 0 NA 0 8 0 NA 0 0 NA R6 NA NA
R7 check3.net.kent.edu 131.123.252.237 10 NA NA 0 0 0 NA 0 NA NA 0 R7 0 NA NA 0 0 0 NA 0 NA NA R7 NA 0 0 NA NA 0 0 NA NA NA R7 0 0 0 NA 4 0 0 NA 0 1 R7 NA NA
R8 nighthawk.rnet.missouri.edu 128.206.118.134 None NA NA 0 NA 0 0 NA NA NA NA R8 0 NA NA 0 0 NA NA 0 0 NA R8 0 0 0 NA NA 0 0 NA NA NA R8 0 NA NA NA 7 0 0 NA NA NA R8 NA NA
R9 netmenderx.cc.ndsu.nodak.edu 134.129.95.122 None NA NA NA 42 NA 64 NA NA NA 91 R9 NA NA NA NA 7 30 NA 43 56 NA R9 37 0 NA NA NA 14 32 NA NA NA R9 87 35 NA NA 10 58 55 NA 25 71 R9 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
R10 xenon.ops.tns.its.psu.edu 128.118.70.6 None NA NA 1 NA 1 1 NA NA NA 1 R10 0 NA NA 1 1 NA NA 1 1 NA R10 1 0 1 NA NA 1 1 NA NA NA R10 1 NA NA NA 8 1 1 NA NA 1 R10 NA NA
R11 otc1.psu.edu 128.118.25.5 None NA NA 1 NA 1 1 NA NA NA 1 R11 1 NA NA 1 2 NA NA 1 1 NA R11 1 0 1 NA NA 1 1 NA NA NA R11 1 NA NA NA 9 1 1 NA NA 1 R11 NA NA
R12 g217display.bsd.uchicago.edu 128.135.122.108 None NA NA 0 0 0 0 NA NA NA 0 R12 0 NA NA 0 0 0 NA 0 0 NA R12 0 0 0 NA NA 0 0 NA NA NA R12 0 0 NA NA 7 0 0 NA 0 0 R12 NA NA
R13 fig.uchicago.edu 128.135.106.42 None NA NA NA 0 0 0 0 NA NA 0 R13 0 NA NA NA 0 0 NA 0 0 NA R13 0 0 0 NA NA 0 0 NA NA NA R13 0 0 0 NA 7 0 0 NA 0 0 R13 NA NA
R14 serrano.noc.ucla.edu 169.232.25.8 None NA NA 0 0 0 0 NA NA NA 0 R14 0 NA NA 0 NA 0 NA 0 0 NA R14 0 0 0 NA NA 0 0 NA NA NA R14 0 0 NA NA 7 0 0 NA 0 0 R14 NA NA
R15 ag-beacon.engr.ucsb.edu 128.111.149.134 12 NA NA NA NA NA NA NA NA NA NA R15 NA NA NA NA NA 0 NA NA NA NA R15 NA NA NA NA NA NA NA NA NA NA R15 NA NA NA NA NA NA NA NA NA NA R15 NA NA
R16 darkness.nss.udel.edu 128.175.2.48 None NA NA 0 0 0 0 NA NA NA 0 R16 0 0 NA 0 0 0 NA 0 0 NA R16 0 0 0 0 NA 0 0 0 NA 0 R16 0 0 NA 0 8 0 0 NA 0 NA R16 NA NA
R17 transducer.nss.udel.edu 128.175.13.112 502 80 74 76 96 34 30 13 99 22 36 R17 83 55 43 34 64 30 17 30 69 44 R17 1 63 85 98 7 16 21 16 72 26 R17 78 76 64 69 33 8 21 26 30 24 R17 0 0
R18 verdi.udel.edu 128.175.13.135 414 18 9 3 69 15 84 55 32 88 11 R18 71 8 91 2 0 63 0 0 1 90 R18 0 0 55 12 41 12 85 42 83 14 R18 19 37 0 8 99 3 78 96 21 59 R18 0 0
R19 faranth.ci.uiuc.edu 192.17.24.169 22 NA NA NA NA NA 2 NA NA NA 16 R19 NA NA NA NA 2 NA NA 3 13 NA R19 2 6 NA NA NA 12 1 NA NA NA R19 24 NA 16 NA 58 37 6 NA 0 60 R19 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
R20 jhereg.ncsa.uiuc.edu 141.142.2.55 44 9 1 0 1 0 NA NA 0 0 1 R20 0 1 0 0 NA 1 NA 2 NA 1 R20 NA 2 0 0 0 NA NA 1 NA 0 R20 1 1 NA 1 NA 1 1 0 1 1 R20 NA NA
R21 multicast.chpc.utah.edu 155.101.3.100 None NA 1 1 0 1 NA 0 NA NA 1 R21 1 NA NA 0 NA 0 NA 1 NA 1 R21 NA NA 1 NA NA 1 1 NA NA NA R21 1 1 0 NA 8 1 1 NA 1 1 R21 NA NA
R22 ebc.mc-beacon.utah.edu 155.98.194.254 None NA NA NA 6 5 5 NA NA NA 4 R22 5 NA NA NA 6 5 NA 8 5 NA R22 6 28 NA NA NA 6 5 NA NA NA R22 9 5 NA NA 13 11 6 NA 5 6 R22 NA NA
R23 eng.mc-beacon.utah.edu 155.98.127.254 None NA NA NA 6 7 5 5 NA NA 5 R23 7 NA NA NA 5 6 NA 0 5 NA R23 5 35 NA NA NA NA NA NA NA NA R23 0 6 4 NA NA 0 6 NA 6 6 R23 NA NA
R24 park.mc-beacon.utah.edu 155.101.127.30 None NA NA NA 3 3 3 NA NA NA 3 R24 3 NA NA NA 0 3 NA 3 3 NA R24 3 0 NA NA NA 3 3 NA NA NA R24 3 3 NA NA 10 3 3 NA 3 3 R24 NA NA
R25 mbone-test.cs.wisc.edu 128.105.40.15 None NA NA 1 1 1 1 NA NA NA 1 R25 1 NA NA 1 0 1 NA 1 1 NA R25 1 0 1 NA NA 0 1 NA NA NA R25 1 1 NA NA 9 1 1 NA 1 1 R25 NA NA
R26 lipas.tv.funet.fi 193.166.16.119 None 1 NA 2 1 2 1 NA NA NA 1 R26 1 1 NA 2 4 1 1 1 1 NA R26 1 0 2 1 NA 1 0 1 1 1 R26 1 1 NA 0 8 1 1 NA 1 1 R26 NA NA
R27 hank.ornl.gov 192.31.96.42 12 NA NA NA NA NA NA NA NA NA NA R27 NA NA NA NA NA NA NA NA NA NA R27 NA NA NA NA NA NA NA 0 NA NA R27 NA NA NA NA NA NA NA NA NA NA R27 NA NA
R28 nfc1.grnet.gr 194.177.210.213 500 39 24 11 4 59 8 55 94 44 92 R28 21 78 99 67 3 55 6 0 0 2 R28 0 1 7 20 68 5 10 34 87 33 R28 42 41 8 13 78 27 12 52 47 78 R28 0 0
R29 beacon.noc.dren.net 138.18.250.20 449 0 0 0 0 0 0 0 0 NA 0 R29 0 0 0 0 0 0 0 0 0 NA R29 0 0 0 0 0 0 0 0 0 0 R29 0 0 0 0 14 0 0 0 0 0 R29 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
R30 usul.es.net 198.128.1.31 27 NA NA NA 0 0 0 0 NA NA 0 R30 0 NA NA NA 0 0 NA 0 0 NA R30 0 0 0 NA NA 0 29 NA NA NA R30 0 0 0 NA 23 0 0 NA 0 0 R30 NA NA
R31 noc.maxgigapop.net 206.196.176.2 None NA NA 1 1 0 3 NA NA NA 1 R31 1 NA NA 1 1 0 NA 1 3 NA R31 3 35 1 NA NA 0 0 NA NA NA R31 2 0 NA NA 5 0 0 NA 0 1 R31 NA NA
R32 ecu-beacon.ncren.net 128.109.58.21 51 NA NA 0 11 0 11 NA NA NA 8 R32 0 NA NA 0 0 11 0 0 11 NA R32 11 52 0 NA NA 0 0 NA 0 NA R32 0 11 NA NA 9 0 11 NA 10 11 R32 NA NA
R33 rtp-beacon.ncren.net 128.109.230.21 44 NA NA NA 3 0 3 NA NA NA 3 R33 0 NA NA NA 2 3 NA 0 3 NA R33 3 0 NA NA NA 3 3 NA NA NA R33 0 3 NA NA 10 0 3 NA 3 3 R33 NA NA
R34 freebird.wind.surfnet.nl 192.87.110.80 None 8 NA 5 14 7 7 8 NA NA 13 R34 7 8 NA 7 2 8 NA 8 7 NA R34 6 3 7 8 NA 8 7 8 NA 8 R34 8 8 8 0 0 9 8 NA NA 8 R34 NA NA
R35 beacon.zebi.nl 192.87.78.202 None 20 NA 19 NA 19 19 NA NA NA NA R35 18 NA NA 19 18 NA NA 20 18 NA R35 19 4 18 19 NA 19 18 NA NA 18 R35 23 NA NA NA 26 6 NA NA NA NA R35 NA NA
R36 ag.bccs.uib.no 129.177.120.154 None 0 NA 0 0 0 0 NA NA NA 0 R36 0 NA NA 0 0 0 NA 0 0 NA R36 0 0 0 0 NA NA NA NA NA 0 R36 0 0 NA NA NA 0 0 NA 0 0 R36 NA NA
R37 beacon.karen.ac.nz 210.7.46.250 184 NA NA 0 0 0 0 NA NA NA 0 R37 0 NA NA 0 0 0 0 0 0 NA R37 0 0 0 NA NA 0 0 NA 0 NA R37 0 0 NA NA 16 NA 0 NA 0 0 R37 NA NA
R38 kutil.karen.ac.nz 210.7.46.41 155 NA NA 0 0 0 0 NA NA NA 0 R38 0 NA NA 0 0 0 NA 0 0 NA R38 0 0 0 NA NA 0 0 NA NA NA R38 0 0 NA NA 12 NA 0 NA 0 0 R38 NA NA
R39 vv2.ap-accessgrid.org 130.102.78.179 210 1 NA 0 1 0 1 NA NA NA 1 R39 0 0 NA 0 0 1 NA 0 0 NA R39 2 1 0 NA NA 0 0 0 NA 2 R39 0 1 NA 0 17 0 1 NA 1 1 R39 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
R40 Unresolvable 10 NA NA NA NA NA NA NA NA NA NA R40 NA NA NA NA NA NA NA NA NA NA R40 NA NA NA NA NA NA NA NA NA NA R40 NA NA NA NA NA NA NA NA NA NA R40 NA NA
R41 Unresolvable 6 NA NA NA NA NA NA NA NA NA NA R41 NA NA NA NA NA NA NA NA NA NA R41 NA NA NA NA NA NA NA NA NA NA R41 NA NA NA NA NA NA NA NA NA NA R41 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

Fract Lost is the local instantaneous view of RTP Fract_Lost values, the same as the RQM utility generates, although displayed in the opposite orientation from RQM.

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.