Thinking about it, I think spokes would need broadcast statement otherwise mcast wouldn't be unucasted betseen them, via pseudo broadcast. Hub would drop packets On Jan 3, 2013 12:07 AM, "Maureen Maina" <[email protected]> wrote:
> Hi Saleh, > The frame-relay mappings were present though not with the "broadcast" > keyword as this is spoke to spoke.All spoke to hub mappings had the > broadcast keyword. > Maybe thats why it can be used to forward multicast traffic? > > > Regards, > Mo > > On Mon, Dec 31, 2012 at 9:07 PM, Saleh Batouq <[email protected]> > wrote: > > > Hi Naureen, > > > > I replicated your topology using OSPF NMBA mode instead of RIP. It works > > fine. > > And from your output of the show routes it looks that both shared & > source > > trees are built. > > > > *For pings to be replied the spokes need frame-relay maps to each other > > (SPOKE-to-SPOKE). I assume you are missing this.* > > > > My outputs are similar to yours and ping works fine. > > > > SPOKE R1 > > ---- > > > > (*, 239.1.1.1), 00:10:29/stopped, RP 10.1.1.2, flags: SJCLF > > Incoming interface: Serial0/0, RPF nbr 172.16.0.2 > > Outgoing interface list: > > Loopback0, Forward/Sparse, 00:10:29/00:02:12 > > ! > > (10.1.1.3, 239.1.1.1), 00:00:58/00:02:07, flags: LJT > > Incoming interface: Serial0/0, RPF nbr 172.16.0.3 > > Outgoing interface list: > > Loopback0, Forward/Sparse, 00:00:58/00:02:12 > > ! > > > > > > SPOKE R3 > > ----- > > > > (*, 239.3.3.3), 00:10:35/stopped, RP 10.1.1.2, flags: SJCLF > > Incoming interface: Serial0/0, RPF nbr 172.16.0.2 > > Outgoing interface list: > > Loopback0, Forward/Sparse, 00:10:35/00:02:43 > > > > (10.1.1.1, 239.3.3.3), 00:01:06/00:01:56, flags: LJT > > Incoming interface: Serial0/0, RPF nbr 172.16.0.1 > > Outgoing interface list: > > Loopback0, Forward/Sparse, 00:01:06/00:02:43 > > > > On Mon, Dec 31, 2012 at 7:18 PM, Maureen Maina <[email protected]> > wrote: > > > >> Hi, > >> I have a simple scenario of hub and spoke frame-relay. R1-R2-R3. I opt > to > >> use pim nbma with sparse mode under the R2 interface to allow multicast > >> traffic from R1 to flow to R3. > >> However due to the fact I was using rip , the next hop remains unchanged > >> for all routes propagated from spoke to spoke. The RP is connected to > the > >> hub R2. the source x.x.x.x is connected to R1 . A show ip mroute on R3 > is > >> as follows.. > >> > >> *NO STATIC RPF workaround needed.* > > > > regards, > > > > > > > >> (*, 232.2.2.2), 04:40:25/stopped, RP 172.16.200.13, flags: SJCL > >> Incoming interface: Serial0/0/0:0, RPF nbr <R2 address> > >> Outgoing interface list: > >> Loopback102, Forward/Sparse, 04:40:25/00:02:24 > >> > >> (x.x.x.x, 232.2.2.2), 00:06:07/00:00:43, flags: LJT > >> Incoming interface: Serial0/0/0:0, RPF nbr <R1 address> > >> Outgoing interface list: > >> Loopback102, Forward/Sparse, 00:06:07/00:02:24 > >> > >> So on the shared tree, all is well but when it switches to the source > >> based > >> tree , the pings dont go through. > >> When I apply an mroute x.x.x.x 255.255.255.255 <R2 address> it works! > >> Is this a rule of pim nbma that the hub must be seen as rpf neighbor? > >> > >> Regards, > >> Maureen > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > please > >> visit www.ipexpert.com > >> > >> Are you a CCNP or CCIE and looking for a job? Check out > >> www.PlatinumPlacement.com > >> > >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > >> > > > > > > > > -- > > Best Regards, > > > > Saleh Hassan Batouq > > [email protected] > > Tel: +968 99365607 > > Fax: +968 2469690 > > P.O.Box:1083- Postal Code:112 > > Muscat-Sultanate Of Oman > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
