[e-nsp] IPTV / IGMP issues

[Marcin Kuczera]

Marcin Kuczera wrote:
> hello,
> 
> we are having some strange issues with our IPTV service.
> 
> Service provider is external, connected in this way:
> 
> ProvidersPIM(cisco)---SummitX650---OurPIM(redback)---SummitX650---otherL2devices.. 
> 
> 
> 
> So, now we have some STB (zyxel) that have problems joining some 
> multicast groups when config is like that:
> 
> OurPIM-X650-X450-STB

This had been resolved...
The problem is, when port is STP enabled. Zyxel's STB gets crazy 
receiving BPDU packets...
So, disabling STP on STB untagged port - resolved this problem.

Still researching others...
Regards,
Marcin




> OurPIM-X650-X450-EPON-STB (epon from corecess)
> OurPIM-X650-X450-whatever-DES3526 from dlink (whatever is DGS3100-TG or 
> X450, both results the same)
> 
> 
> We are having NO problems when config is like that:
> 
> OurPIM-X650-X450-DES3526-STB
> OurPIM-X650-Summit400-STB
> OurPIM-X650-Summit400-EPON-STB
> OurPIM-X650-X450-whatever-DES3028-STB
> 
> 
> IGMP settings on all switches are the same:
>     IGMP:
>         Query Interval: 125 sec
>         Max Response Time: 10 sec
>         Last Member Query: 1 sec
>         Robustness: 2
> 
>     IGMP Snooping:
>         Router Timeout: 260 sec
>         Host Timeout: 260 sec
>         Igmp Snooping Fast Leave Time: 2000 ms
>         Igmp Snooping Flag: forward-all-router
>         Igmp Snooping Flood-list: none
>         Igmp Snooping Proxy: Enable
>         Igmp Snooping Forwarding-mode: (SourceIP, GroupIP, VlanId)
> 
>         Igmp Snooping Filters: per-port
> 
> 
> the only difference from default is LeaveTime - 2000ms - same as on 
> DLINK by default. Without that we were having regular out-of-order events.
> 
> 
> On what parameters should we pay attention on ???
> What could go wrong ?
> 
> Regards,
> Marcin
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