From: Brian Van Benschoten (vader@xxxxxxxxxxxx)
Date: Sun Nov 28 1999 - 17:32:12 GMT-3
Interesting. I got multicast working over the frame in dense mode without
that command. My frame-relay map statements had the "broadcast" option on
them. ( we all have that i assume) Is it correct to work either way
----- Original Message -----
From: Brett Summerville <b_summerville@yahoo.com>
To: John Galt Kupec <jkupec2@san.rr.com>; Brian Van Benschoten
<vader@inxpress.net>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, November 28, 1999 1:06 PM
Subject: Re: IP multicast
>
>
> Use Sparse in lab except when going over Frame Relay..
> You will get this message:
>
> PIM nbma-mode is not recommended for dense-mode
>
>
>
> --- John Galt Kupec <jkupec2@san.rr.com> wrote:
> >
> >
> > Brian Van Benschoten wrote:
> > >
> > > looking for opinions...
> > > when doing IP multicast on the lab would you
> > configure the interfaces IP PIM
> > > SPARSE-DENSE MODE or just IP PIM DENSE-MODE. Is
> > it worth dealing with the
> > > RP and all of the other config that goes with it ?
> > >
> > > Every example I see shows a few routers on a frame
> > and a few more on a LAN
> > > segment with IP multicast enabled. They usually
> > want you to ping a group
> > > address. I have the "pingable" router do an IGMP
> > JOIN-GROUP IP.IP.IP.IP.
> > > With IP PIM DENSE-MODE configured on the other
> > routers I can ping this
> > > group. Is there more to this than meets the eye ?
> >
> > I would probably just configure dense mode unless
> > told otherwise.
> > A little less typing! As you probably know, the
> > sparse-dense
> > command allows the router to use either dense or
> > sparse mode
> > depending on the existence of rendezvous point (RP)
> > information
> > for each muticast group.
> >
> > I find dense-mode easier to work with &
> > troubleshoot, so in the lab
> > environment I would prefer not to mess with RP's.
> >
> > John
> >
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