| Author |
Message |
Paul Steele
Guest
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 Posted:
Tue Dec 06, 2005 5:20 pm Post subject:
How to configure Multicast on a 6500? |
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We have a single 6509 router at our campus, with mostly 3524's and 3548's at
the edge, all connected through a gigabit backbone. The 6505 has a split
configuration (CatOS in the switch engine, IOS on the router blade). I want
to configure the router/switch to allow multicast traffic to pass through
the router properly, at least for some subnets. I wrote a simple pair of
programs, one that joins a multicast group and waits for traffic, and
another that sends out a packet to the same multicast group. If I run the
two programs on the same subnet, the reciever programs gets the multicast
packet sent out by the sender. However, if the receiver and sender are on
different subnets, the multicast packets for the group never arrive. An
ethernet trace confirms it.
I've done numerous Google searches trying to find the correct way to set up
multicast for our environment, but nothing that I try works. I've tried both
dense and sparse mode but there's obviously more required. Any suggestions
on what I should be doing would be greatly appreciated. |
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Merv
Guest
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Hansang Bae
Guest
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| Posted:
Thu Dec 08, 2005 9:21 am Post subject:
Re: How to configure Multicast on a 6500? |
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Paul Steele wrote:
| Quote: | We have a single 6509 router at our campus, with mostly 3524's and
3548's at the edge, all connected through a gigabit backbone. The
6505 has a split configuration (CatOS in the switch engine, IOS on
the router blade). I want to configure the router/switch to allow
multicast traffic to pass through the router properly, at least for
some subnets. I wrote a simple pair of programs, one that joins a
multicast group and waits for traffic, and another that sends out a
packet to the same multicast group. If I run the two programs on the
same subnet, the reciever programs gets the multicast packet sent out
by the sender. However, if the receiver and sender are on different
subnets, the multicast packets for the group never arrive. An
ethernet trace confirms it.
I've done numerous Google searches trying to find the correct way to
set up multicast for our environment, but nothing that I try works.
I've tried both dense and sparse mode but there's obviously more
required. Any suggestions on what I should be doing would be greatly
appreciated.
|
How exactly did you configure your routers?
It can be as simple as:
ip multicast-routing
!
int vlan 101
ip pim dense-mode
But there are a lot of little issues that can hurt you if you don't do
this right. On the other hand, if you have a small network, it can be
pretty simple to configure.
--
hsb
"Somehow I imagined this experience would be more rewarding" Calvin
**************************ROT13 MY ADDRESS*************************
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reply to emails sent to my account. Please post a followup instead.
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