JANET Multicast Beacon Server

Based on the DAST/NLANR Multicast Beacon v1.3-0

This page is showing: Central Loss (%) - Beacons: 3 | Blind Beacons: 2

Time: Tue Sep 16 0:50:19 GB 2008 CST | Page Refresh: 60 seconds | Started: Tue Sep 16 0:49:19 GB 2008 | Beacons: 3 | Blind Beacons: 2
Target Multicast Group: 233.3.18.2 | 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 | Beacon Info |

# Hostname IP Address S0 S1 S2

R0 beacon.net.ed.ac.uk 129.215.166.107 0 0 0

R1 pharos.dmz.qub.ac.uk 143.117.1.5 0 0 0

R2 cloch.clyde.net.uk 194.81.63.5 0 0 NA

#	Hostname	IP Address	S2
R0	beacon.net.ed.ac.uk	129.215.166.107	0
R1	pharos.dmz.qub.ac.uk	143.117.1.5	0
R2	cloch.clyde.net.uk	194.81.63.5	NA

Central Loss | Beacon Info |

Diagnosing problems with your multicast setup | Contributed code and patches

Blind Beacons -- These Beacons are being correctly reported to the Central Server, but do not see any other Beacons, nor are they seen by any other Beacons. Check your multicast setup if you are the admin for any of the Beacons listed below!

washington.oucs.ox.ac.uk
nettest2.net.soton.ac.uk

Central Loss is the reported loss between two Beacons in the current multicast group, sent via TCP unicast back to the Central Server (in this case, "chilton.beacon.ja.net") for the group. This allows for the reporting of Beacons that might not otherwise be able to see each other via UDP multicast.

Central_loss of 0 - 10 = Green, 10 - 30 = Yellow, 30 - 100 = Red, No data ("NA") = Gray
R# and S# are the same Beacon. Any given cell in this table is read as "How well does Beacon R# see Beacon S#?".
The dark green background in the R column shows which Beacon is generating the table you are seeing here.

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.