From: Chia Kim Seng, Consultant, SCSNW-Sales (chiaks@xxxxxxxxxxxxxxxxxxxxxx)
Date: Thu Apr 19 2001 - 06:52:14 GMT-3
I had configure Multicast over Frame-Relay.
Just a simple setup, R1 is Hub and R2 and R3 is spoke.
R1 is a C-RP and MA config. R2 and R3 each has two multicast group joined
(225.11.11.11 and 225.12.12.12).
I define a group-list filtering at command 'ip pim send-rp-ann'.
Below is what I had specified
ip pim send-rp-announce loopback0 scope 16 group-list 5
access-list 5 permit 225.11.11.0 0.0.0.255
So I try to filter off multicast group 225.12.12.12.
All the routers is running PIM SM. At the Hub I also specified 'ip pim
nbma-mode'.
Now what I experience is when I ping 225.11.11.11 from HUB, both R2 and R3
reply.
When I ping 225.12.12.12 from Hub, both R2 and R3 also reply.
When I 'show ip mroute' it show 225.12.12.12 is in Dense mode.
So this normal?
Regards
Chia Kim Seng
SCS Networks Pte Ltd
7 Bedok South Road
Singapore 469272
Tel : 065-2403164
Fax: 065-2403110
-----Original Message-----
From: Johnny Dedon [mailto:johnny.dedon@exodus.net]
Sent: Wednesday, April 18, 2001 9:48 PM
To: Elias, John, NLSOP; ccielab@groupstudy.com
Subject: Re: another ip multicasting filtering question
Thanks John, OI forgot to answer the second question. You are correct,
there is no filter for dense mode.
Johnny
----- Original Message -----
From: "Elias, John, NLSOP" <johnelias@att.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, April 18, 2001 8:33 AM
Subject: RE: another ip multicasting filtering question
> Don't think it is possible to filter in dense-mode. The command is
limitted
> to sparse-mode. In Dense Mode, the Multicast address is 'pushed' or
> 'broadcasted' to all the routers in the network that are configured with
ip
> multicast-routing and are running dense-mode. If a router does not want
the
> multicast traffic, it simply sends a Prune message up the multicast tree
and
> the router connected to him that is sending the traffic will stop sending
> him the unwanted multicast traffic.
>
> John
>
> -----Original Message-----
> From: Johnny Dedon [mailto:johnny.dedon@exodus.net]
> Sent: Wednesday, April 18, 2001 09:22 AM
> To: Chia Kim Seng, Consultant, SCSNW-Sales; ccielab@groupstudy.com
> Subject: Re: another ip multicasting filtering question
>
>
> Not if you only have sparse mode configured. You need to have sparse
dense
> mode configured on all the interfaces as I understand it. The notable
> exceptions are the well known addresses .39 and .40 used for announce and
> discovery of the RP.
>
> Anyone feel free to correct me here.
>
>
> ----- Original Message -----
> From: "Chia Kim Seng, Consultant, SCSNW-Sales"
> <chiaks@scsnetworks.scs.com.sg>
> To: <ccielab@groupstudy.com>
> Sent: Tuesday, April 17, 2001 8:31 PM
> Subject: another ip multicasting filtering question
>
>
> > Guys,
> >
> > Is it true that when using filtering in SM mode, all not vaild groups
will
> > be in DM mode?
> >
> > How about filtering in group in DM mode or this there such thing?
> >
> > Regards
> > Chia Kim Seng
> >
> > SCS Networks Pte Ltd
> > 7 Bedok South Road
> > Singapore 469272
> > Tel : 065-2403164
> > Fax: 065-2403110
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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