Re: Muticast Query

In such case it also depends on replication mode. For eg 7600 / 6500 ,
switch automatically detects replication mode based on LC / modules on the
devices. Egress replication results into efficient utilization of fabric as
ingress fabric sends single copy to egress LC (via fabric) and then
replication engine on egress LC make duplicate copy for all OIF interfaces
..

http://www.scribd.com/doc/33217473/54/Egress-Replication
http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/mcastv4.html#wp1076728

PM

On Mon, May 23, 2011 at 5:01 PM, austin stone <amitkjoshi.cisco_at_gmail.com>wrote:

> Hi all,
> I have query regarding the Multilayer switches. I have started reading
> about
> CEF. In that i have found that we have switch fabrics in 3 different types
> 1) Shared Memory
> 2) Crossbar switch fabric
> 3)Shared Bus
>
> What i read is in shared memory and shared bus multiple line card can
> communicate with single line card using scheduling algorithm. It is useful
> when we have a multicast traffic running on the switch.
> In Crossbar switching Fabric how it will work once multicast traffic
> running
> on the switch is it use same technology ( Scheduling algorithm)?
>
> Look forward to your Reply.
>
> Regards
>
> Amit
>
>
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Received on Mon May 23 2011 - 19:48:11 ART