From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Sun Mar 26 2006 - 20:40:25 GMT-3
I agree with Alexei on this one. Additionally, you could use the ip pim
sparse mode with Auto-RP and use the ip pim autorp listener command to allow
the 39/40 groups to be sent in dense mode (a requirement for Auto-RP). There
should not be an issue with spoke-to-spoke communications, as long as you
insure that the MA is at the hub.
Dave
________________________________
From: nobody@groupstudy.com on behalf of Alexei Monastyrnyi
Sent: Sun 3/26/2006 4:31 PM
To: david robin; Cisco certification
Subject: Re: frame relay hub and spoke multicast
you might need to configure an RP on your hub router
PIM sparce mode with static RP or BSR will help the situation or PIM
sparce-dense mode with auto-RP
IMO no tunnels are needed here unless it is explicitly required
A.
----- Original Message -----
From: "david robin" <robindavi@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Sunday, March 26, 2006 2:32 PM
Subject: frame relay hub and spoke multicast
> dear all,
> I want to very something with ip multicast, if we have a frame-relay
> connection, R1 is the hub connected wih a multipoint interface to r2 and
> r3
> the spokes, the qusetion is if we had a multicast group on r2 fast
> ethernet
> ( using ip igmp join), the fact that I cant ping this multicast group from
> r3, does i have to configure tunnels ( 1 tunnel between r1 and r2 and 1
> tunnel between r1 and r3) in order to make the multicast packets flow ??
>
> Also there is another question in case i run pim sparse-dense as r1 is the
> RR the same problem will occur and does i have to configure tunnel too ???
>
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