[streaming] Re: DVB streaming !

[Marshall Eubanks]

The first thing I would do is run tcpdump and see where the traffic  
is really coming from.

Maybe you have lots of duplicate packets. It sounds unlikely, but you  
should rule it out.

BTW, there was a SAP / SDR storm a few days ago. There might be a SAP  
exploit out there. Again, tcpdump
should sort this out.

Regards
Marshall Eubanks

On Jan 15, 2006, at 2:27 PM, Romuald CARI wrote:

> Hi everybody !
>
> I'm experiencing a strange problem with VLC while streaming my  
> channels over my network in multicast. As soon as I start streaming  
> my channels, the network seems to be saturated.
> My network is private : 172.16.0.0 / 255.255.0.0, no routers.
> DNS server do not respond anymore and no ping can travel through  
> the network. As soon as I stop it, everything goes back to normal.
> I don't have a complete access to the network hardware but I was  
> told that it is 100Mbit/s fully switched (no hubs, which I doubt to  
> be true...) with 1Gbit/s uplinks.
> I can't see why the network is saturated with only four channels  
> streamed unless a hub creates a packet storm. Anyway could this  
> come from SAP announces or anything else ?
>
> This is my sout string:
>
> #duplicate{dst=standard 
> {access=udp,mux=ts,url=239.255.255.10,sap,name="02 -  
> France2",group="TNT"},select="program=257",dst=standard 
> {access=udp,mux=ts,url=239.255.255.20,sap,name="03 -  
> France3",group="TNT"},select="program=292",dst=standard 
> {access=udp,mux=ts,url=239.255.255.30,sap,name="04 -  
> France4",group="TNT"},select="program=259",dst=standard 
> {access=udp,mux=ts,url=239.255.255.40,sap,name="05 -  
> France5",group="TNT"},select="program=260"}
>
> I'm using VLC 0.8.5 from one of the nightlies.
>
> Any help would really be appreciated !
>
> Romuald Cari ( KiriKoo on IRC )
>
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