[rbak-nsp] PIM/IGMP on which interfaces ?

[Christopher O'Shea]

Hi Marcin,

You need PIM to be running to allow the interface to be populated in a
multicast forwarding table.
If you don't want PIM message just add "pim sparse-mode passive"


Chris O'Shea



On Fri, Oct 14, 2011 at 1:53 AM, Marcin Kuczera <marcin at leon.pl> wrote:
>
> hello,
>
> I'am in doubt. I have a context where IPTV runs.
>
> There are let's say 2 interfaces, 1 - downstream where PIM is running and 2 - multicast VLAN (with IGMP snooping v2). On interface 2 I have:
>
> !
>  interface downstream
>  ip address 10.200.16.6/30
>  igmp last-member-query-interval 2000
>  pim sparse-mode
> !
>  interface mcast-epon
>  ip address 10.200.183.1/24
>  dhcp proxy 253
>  igmp last-member-query-interval 2000
>  pim sparse-mode
> !
>
>
> is there ANY need for PIM on interface mcast-epon ???
> There is no PIM speaker on that side, however if I turn it of, it seems that IGMP traffic disappears..
> I have no STB @ home to check it, I'am just connected with sniffer to that vlan.
>
> I have a need to clean-up IPTV mess as much as possible, there are some quality problems and I'am trying to remove all unncessary and possible points of problem.
>
> Also I can see some CDPv1 messages comming from Mikrotik bridge (used to test IPTV over EoIP tunnel). But, I will block it on core by allowing only IPv4 and ARP on vlan.
>
> Regards,
> Marcin
>
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