[Fwd: Fwd: RE: [AG-TECH] ddvic error]

Tue Nov 12 13:18:43 CST 2002

Thank you all for solving this.

Monika

On Mon, 11 Nov 2002, Kun Wei wrote:

> Hello, Bob;
> The problem should be fixed now. It is because of a line of
> misconfiguration. 
> 
> Sorry for the inconvenience.
> 
> Kun 
>  
> > Bob Riddle wrote:
> > >
> > > where do we stand on the vrvs-ag.internet2.edu stuff?
> > >
> > > Kun Wei wrote:
> > >
> > > >Hello;
> > > >
> > > >Most likely it caused by some local AG nodes. I can see loopback in
> > > >Lobby but not in Test
> > > >In Lobby, there are
> > > >
> > > >ag at 127.0.0.1/ag-www.mcs.anl.gov/mbone/University of Montana/0
> > > >ag at 192.12.188.20/ag-www.mcs.anl.gov/mbone/BOSTON UNIVERSITY/0
> > > >ag at 144.167.32.102/ag-www.mcs.anl.gov/mbone/UALR VRC/AG/0
> > > >agtech at 131.193.77.103/ag-www.mcs.anl.gov/mbone/EVL at UIC/0
> > > >ag at 128.210.182.12/ag-www.mcs.anl.gov/mbone/Purdue University/0
> > > >ag-operator at 129.93.185.15/ag-www.mcs.anl.gov/mbone/UNL-Cornhuskers/0
> > > >root at 137.48.142.1/ag-www.mcs.anl.gov/mbone/root/0
> > > >agop at 66.99.215.133/ag-www.mcs.anl.gov/mbone/TRECC/0
> > > >gazula at 128.163.209.74/ag-www.mcs.anl.gov/mbone/University of Kentucky/0
> > > >
> > > >
> > > >look at the first one's IP
> > > >
> > > >Kun
> > > >
> > > >
> > > >
> > > >Kun Wei wrote:
> > > >
> > > >
> > > >>Hello, Bob;
> > > >>Are there any multicast setup changes on ag-www.mcs.anl.gov, or it maybe
> > > >>caused by some local AG nodes mis-configuration.
> > > >>Now if I transmit video, I can see loopback. see the attached snapshot.
> > > >>
> > > >>It is not this case before. VRVS AG Gateway worked okay before and there
> > > >>is no change related to VRVS on ag-www.mcs.anl.gov.
> > > >>
> > > >>Regards
> > > >>Kun
> > > >>
> > > >>Bob Riddle wrote:
> > > >>
> > > >>
> > > >>>  Bob,
> > > >>>
> > > >>>I have no idea what this is at the *.189, but we're looking for this
> > > >>>machine and will pull the plug ...
> > > >>>
> > > >>>the *.66 machine, vrvs-ag.internet2.edu is a machine we've made
> > > >>>available to VRVS to setup as a backup bridge for the VRVS-AG bridge.
> > > >>> I've copied Philippe (and VRVS support) thinking that perhaps they've
> > > >>>begun to configure and deploy that software ... Philippe?
> > > >>>
> > > >>>-------- Original Message --------
> > > >>>Subject: Fwd: RE: [AG-TECH] ddvic error
> > > >>>Date: Thu, 07 Nov 2002 15:27:13 -0500
> > > >>>From: Chris Goosman <goose at internet2.edu>
> > > >>>To: Bob Riddle <bdr at internet2.edu>
> > > >>>
> > > >>>Did you see this?
> > > >>>
> > > >>>
> > > >>>
> > > >>>>Delivered-To: goose at internet2.edu
> > > >>>>Date: Wed, 6 Nov 2002 14:54:18 -0600 (CST)
> > > >>>>From: Bob Olson
> > > >>>>To: s-slocombe at northwestern.edu,
> > > >>>>        "'Rabarison Monika Klara'"
> > > >>>>Cc: darin at ucar.edu, ag-tech at mcs.anl.gov, support at vrvs.org
> > > >>>>Subject: RE: [AG-TECH] ddvic error
> > > >>>>X-Spam-Status: No, hits=-3.9 required=5.0 tests=IN_REP_TO,X_NOT_PRESENT
> > > >>>>version=2.21
> > > >>>>X-Spam-Level:
> > > >>>>Sender: owner-ag-tech at mcs.anl.gov
> > > >>>>X-Virus-Scanned: by AMaViS 0.3.12pre8
> > > >>>>
> > > >>>>Curiouser and curiouser.
> > > >>>>
> > > >>>>1036615485.732686 RTCP len=124 from=207.75.164.189:1263
> > > >>>> (SR ssrc=0x3dcd9dc4 p=0 count=1 len=12
> > > >>>>ntp=3245604283.3556234125 ts=135639818 psent=2231590 osent=451735965
> > > >>>>  (ssrc=3dcd9dc4 fraction=0 lost=0 last_seq=2231590 jit=0 lsr=0 dlsr=0)
> > > >>>> )
> > > >>>> (SDES p=0 count=1 len=17
> > > >>>>  (src=0x3dcd9dc4
> > > >>>>CNAME="bdr at 207.75.164.189" TOOL="vic-2.8ucl-1.1.3-AG/Windows
> > > >>>>NT-5.1-intel" )
> > > >>>> )
> > > >>>>
> > > >>>>followed by
> > > >>>>
> > > >>>>1036615485.800790 RTCP len=124 from=207.75.164.66:42003
> > > >>>> (SR ssrc=0x3dcd9dc4 p=0 count=1 len=12
> > > >>>>ntp=3245604283.3556234125 ts=135639818 psent=2231590 osent=451735965
> > > >>>>  (ssrc=3dcd9dc4 fraction=0 lost=0 last_seq=2231590 jit=0 lsr=0 dlsr=0)
> > > >>>> )
> > > >>>> (SDES p=0 count=1 len=17
> > > >>>>  (src=0x3dcd9dc4
> > > >>>>CNAME="bdr at 207.75.164.189" TOOL="vic-2.8ucl-1.1.3-AG/Windows
> > > >>>>NT-5.1-intel" )
> > > >>>> )
> > > >>>>
> > > >>>>that appears to be the same packet coming from two different IP
> > > >>>>addresses. What's running on 207.75.164.66, aka vrvs-ag.internet2.edu? Is
> > > >>>>it looping multicast traffic back to the group?
> > > >>>>
> > > >>>>Sure looks like it is. Started up another here at ANL, rtpdump shows this:
> > > >>>>
> > > >>>>1036615929.725220 RTP len=629 from=140.221.9.223:33899 v=2 p=0 x=0 cc=0
> > > >>>>m=1 pt=31 (H261,0,90000) seq=1655 ts=1954856438 ssrc=0x3dd8a696
> > > >>>>1036615929.847436 RTP len=629 from=207.75.164.66:42002 v=2 p=0 x=0 cc=0
> > > >>>>m=1 pt=31 (H261,0,90000) seq=1655 ts=1954856438 ssrc=0x3dd8a696
> > > >>>>
> > > >>>>Whoever's running this bridge, please make it stop. I've verified that
> > > >>>>quitting one of these sources that's getting reflected causes vic to
> > > >>>>crash. (The reflector is causing invalid RTP to be present on the wire -
> > > >>>>multiple sources with one SSRC).
> > > >>>>
> > > >>>> --bob
> > > >>>>
> > > >>>>
> > > >>>Chris Goosman * Internet2 * Applications Technician
> > > >>>goose at internet2.edu http://www.internet2.edu
> > > >>>V:734-352-4991
> > > >>>C:734-645-6186
> > > >>>F:734-913-4255
> > > >>>
> > > >>>
> > > >>--
> > > >>-----------------------------
> > > >> Kun Wei
> > > >> Email:   weikun at caltech.edu
> > > >> Address: MC 256-48, Caltech
> > > >>          Pasadena, CA 91125
> > > >> Phone:   1-626-395-8767
> > > >>-----------------------------
> > > >>
> > > >>  ------------------------------------------------------------------------
> > > >> [Image]
> > > >>
> > > >>
> > > >
> > > >
> > > >
> > 
> > --
> > -----------------------------
> >  Kun Wei
> >  Email:   weikun at caltech.edu
> >  Address: MC 256-48, Caltech
> >           Pasadena, CA 91125
> >  Phone:   1-626-395-8767
> > -----------------------------
> 
> -- 
> -----------------------------
>  Kun Wei
>  Email:   weikun at caltech.edu
>  Address: MC 256-48, Caltech
>           Pasadena, CA 91125
>  Phone:   1-626-395-8767
> -----------------------------
> 

---------------------------------------------------------------------
Monika Rabarison
System Administrator
HPVCI
Jackson State University

Office:(601)979-5933
SciVis Lab:(601)979-1061
JSUvisNode:(601)979-1056