From: Nguyen Quang Trung (infos@ttvn.com)
Date: Mon Nov 17 2003 - 17:25:50 GMT-3
cisco recommends that PIM sparse mode must be used associate with nbma
feature ???
ntrung@
----- Original Message -----
From: "Kelly, Russell G" <Russell_Kelly@eu1.bp.com>
To: "kasturi cisco" <kasturi_cisco@hotmail.com>; <edward@ceg.co.za>;
<ccielab@groupstudy.com>
Sent: Monday, November 17, 2003 11:16 PM
Subject: RE: PIM Dense-mode over Frame Relay
> I agree, this is what is happening and configuring ip pim nbma-mode on
> s0/0.2 should fix this. But let us know ;-)...
>
> -----Original Message-----
> From: kasturi cisco [mailto:kasturi_cisco@hotmail.com]
> Sent: 17 November 2003 15:57
> To: edward@ceg.co.za; ccielab@groupstudy.com
> Subject: Re: PIM Dense-mode over Frame Relay
>
>
> Edward,
>
> I think what is happening is since R3 does not have a client it sends a
> Prune towards R1 the hub. R1 sees a prune come up and it removes that
> s0/0.2 interface from OIL. So even if R2 has a reciever it wont get the
> traffic. When u remove the R3 map statement R3 is no longer there on the
> FRelay network and its Prune wont affect R2.So R2 gets it.
>
> Try using "ip pim nbma" on the Hub interfaces of s0/0.1 and s0/0.2 and
> see if it works. Beau Wiilaimson had very good explanation on this.
>
> HTH. Let us know what u find.
>
> Good Luck,
> Kasturi.
>
> >From: "Edward Agostinho" >Reply-To: "Edward Agostinho" >To: >Subject:
> PIM Dense-mode over Frame Relay >Date: Mon, 17 Nov 2003 16:04:11 +0200 >
> >Hi Group > >I am simulating a dense mode multicast environment with 4
> routers where a >multicast source is sitting on a frame relay spoke
> router (R4) which is >configured for point-to-point. The multicast
> client is on a multipoint frame >relay spoke router (R2) as shown below.
> > > >
> >(MC) E(R2)--------FR----------(R1)-----------FR-----------(R4) (MS) > I
>
> >I > F/R > I > I > (R3) > >When I start multicasting, the multicast
> client receives no multicasts until I >remove the frame relay map for R3
> on R1. > >Why would that be? > >Here is the R1 router configs: > > >!
> >hostname R1 >! >ip multicast-routing >! >! >interface Loopback0 > ip
> address 192.168.210.1 255.255.255.0 >! >interface FastEthernet0/0 > ip
> address 192.168.10.1 255.255.255.0 > ip pim dense-mode >! >interface
> Serial0/0 > no ip address > encapsulation frame-relay > no frame-relay
> inverse-arp >! >interface Serial0/0.1 point-to-point > ip address
> 192.168.14.1 255.255.255.0 <---------- to R4 > ip pim dense-mode >
> frame-relay interface-dlci 154 >! >interface Serial0/0.2 multipoint > ip
> address 192.168.123.1 255.255.255.0 > ip pim dense-mode > frame-relay
> map ip 192.168.123.3 153 broadcast <------------ to R3 > frame-relay map
> ip 192.168.123.2 152 broadcast <------------ to R2 >! > > >Thanks >
> >Edward
> >
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