[AG-TECH] problem with multicast

Mike Weaver (DOE) weaver at er.doe.gov
Tue Jun 22 05:47:34 CDT 2004


This sounds similar to a problem we experienced recently due to a bug in a
Juniper router's PIM implementation.  The router would delay the S, G
JoinPrune messages so the upstream neighbor would tear down the shortest
path tree, disconnecting the session.  When the JoinPrune messages did
finally appear, things got rebuilt and the session was joined again with
working audio & video.
 
Do you have a multicast beacon set up
(http://dast.nlanr.net/Projects/Beacon/
<BLOCKED::http://dast.nlanr.net/Projects/Beacon/> )?  Someone who knows
multicast should be able to monitor the beacon data and troubleshoot your
multicast problem.  I was quoting from trouble tickets so I only sound like
I know what I'm talking abbot ;-)
 
Good Luck!
 
Mike
 
--
Mike Weaver
Sr. Network Administrator
US Department of Energy
SC-31/Germantown Building
Voice: 301-903-0072
Fax: 301-528-7774
Email: weaver at er.doe.gov 

  _____  

From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On Behalf
Of Zeppy B. Vilan
Sent: Monday, June 21, 2004 23:55
To: ag-tech at mcs.anl.gov
Subject: [AG-TECH] problem with multicast


hello people,
 
i would like to ask your help regarding my multicast problem. i can recieve
and transmit using multicast in access grid lobby. but every 1 to 2 minutes
i got freeze and after 1 to 2 minute it will back again? anybody got
experience like this before? i check my banwidth usage we are not congested.
we use 3 link connected to APAN. anybody can give me a stable multicast
configuration? thank you people for your help..
 
regards,
zeppy
____________________________________________________________________
 Philippine Research, Education and Government Information Network
  "Fostering the Growth of Research & Development in the Philippines"
                             www.pregi.net
 

Zeppy B. Vilan                                     PREGINET
Network-Multimedia Over Ip Group
Science Research Specialist I               Phone: (+63 2) 426 9766/67
Communications Engineering Division         Fax:   (+63 2) 426 9756
Email: zeppy at asti.dost.gov.ph              E-mail: multimedia at pregi.net

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