From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Mon Dec 12 2005 - 09:01:16 GMT-3
The ip igmp join command, will allow the router to simulate the receiver.
Then, you can use the rtr command on a different router to simulate a source
(Peter sent out a nice email about this, just this past weekend). It works
great, and you can see the behaviour of each sparse and dense traffic flows.
I highly suggest doing this and watch the "show ip mroute" through each of
your routers along the path.
Dave
-----Original Message-----
From: nobody@groupstudy.com
To: Nki; ccielab@groupstudy.com
Sent: 12/11/2005 11:09 PM
Subject: Re: Multicast Group
Nki,
You may have to explain what, you intend to do more....
Generally, multicast sources or senders announce themselves when they
enter
the network.eg a multimedia server can announce its present on the
network
eg by sending its stream on multicast address 239.1.1.1 PCs on the
network
that want to receive feeds from the server have to join the mulicast
group
239.1.1.1.
In the absence of a multicast sender, you can simply configure your
interface to join a multicast group:
!
Interface fa0/0
ip igmp join-group 239.1.1.1
!
OR
Interface fa0/0
ip igmp static-group 239.1.1.1
!
Option 1, In addition to forwarding traffic to multicast source
239.1.1.1,
will process those traffic, so it will response to ping send to that
address; but option 2, will forward multicast traffic to the source
without
processing them.
I see, that you have enabled ip pim sparse-mode, below. For starters,
try
using 'ip pim sparse-dense-mode' or 'ip pim dense-mode'. Sparse mode get
things a little messy and will require some extral configurations. There
is
no concept of "source" per say in sparse mode, the root or
pseudo-source of
the multicast tree is at the Rendezvous Point or RP and it is based on a
shared tree (*,G).
I do not know if this answered your question, but you can always explain
more better what you are looking for.
HTH
Godswill Oletu
----- Original Message -----
From: "Nki" <nkionlab@yahoo.co.uk>
To: <ccielab@groupstudy.com>
Sent: Sunday, December 11, 2005 3:31 PM
Subject: Multicast Group
> Hi Group,
>
> What is the command on a router to advertise a multicast group for
example 239.1.1.1. I want the router to be the source of the group. I
>
> I have configured ip multicast routing (global)and ip pim
sparse-mode
(int). Thanks.
>
>
>
>
>
>
> ---------------------------------
> Play Santa's Celebrity Xmas Party, an exclusive game from Yahoo!
>
>
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