🚀 go-pugleaf

	I think your problem is not you have a multi-homed SGI O2. I have one in just 
one network and I have the same problem.

	My machine has some tunnels with other networks and that works right, but in 
my network, the other computers can only receive the sessions that receive the 
O2 (the mrouter). If the O2 joins to a session, then the other computers can 
receive media from this session, but otherway they can�t.

	(Please, if you fix the problem, advice me what can I do to fix it)

> Folks-
> 
> I continue to be frustrated at trying to get
> any version of mrouted to run correctly on a
> multi-homed SGI O2.
> 
> Has anyone successfully done this at any time?
> 
> Please respond to my email address, as I'll be
> on vacation until the end of October, and won't
> be getting any MBONE mailing list email.
> 
> Attached are the current details. Please take
> a look at them and help if you can.
> 
> Thanks
> 
> -Craig Votava
> Lucent Technologies
> 
> SETUP:
> ======
> NETWORK A    |    NETWORK B
> 
> A1 -------- AB -------- B1
> 
> A1 - A client on the A network, sourcing multicast audio and video
> AB - The multi-homed SGI O2, running mrouted 3.9b3
> B1 - A client on the B network trying to receive the source from A1
> 
> -All routers on both networks have mutlicasting turned off.
> -AB has all of the lines in /etc/mrouted.conf commented out.
> -AB is setup for the primary interface on network A
> 
> SYMPTOMS:
> =========
> 
> -When A1 announces an sdr session with audio and video,
>         the session shows up in the sdr windows on A1,
>         AB, and B1.
> 
> -When B1 joins the session, it gets no multicast packets.
> 
> -When AB joins the session, AB receives video and audio,
>         and suddenly B1 starts getting audio and video too.
> 
> -When AB quits out of the video and/or audio tool B1 stops
>         getting the video and/or audio at the same time.
> 
> -When using mtrace to try and trace between A1 and B1, in
>         either direction, sometimes mtrace has to go to
>         point-to-point mode, other times it doesn't. This
>         seems to vary over time.
> 
> -In the "netstat -M" output, the multicast forwarding cache
>         has an entry for B1 on the audio and video multicast
>         group addresses. When B1 doesn't receive media, the
>         count numbers don't increase, when B1 does get media
>         the count numbers do increase.
> 
> -Running "netsnoop" on the A interface of AB shows continuous
>         multicast media packets at all times when A1 is
>         transmitting. This was verified by an independent PC
>         snooping on that same segment as well.
> 
> -Running "netsnoop" on the B interface of AB when B1 is not getting
>         media shows only the person ID packets (or whatever they're
>         called) on the media sessions. When I have B1 send continuous
>         audio packets, netsnoop on AB picks them up fine.



-----------------------------------------
Angel L. Mateo Martinez
RedIRIS/CSIC
C/ Serrano, 142
28006  Madrid (Spain)
Tlfo: +34-91-5855145
Fax:  +34-91-5855146