CGMP and IGMP is switch dependent.
Brian
At 01:37 PM 01/17/2001 -0600, Ole Drews Jensen wrote:
>Currently reading about Multicast, which I have not any experience with yet.
>
>If you have a small simple LAN with 1 fileserver, 10 workstations and 1
>router to the Internet:
>
>
>INTERNET---[router]---[switch]---[fileserver & 10 workstations]
>
>
>In order for that fileserver to send multicast data to participating
>workstations without changing the topology, I would have to setup the router
>with IGMP and CGMP, so the workstation could tell the router that it joined
>a group, and the router could then inform the switch with CGMP about that
>workstation. The fileserver would now send multicast data and the switch
>would know which interface(s) to forward it out to.
>
>Since the server and every workstation has their own connection to the
>switch (and hence has their own individual collision domain), would I be
>right in assuming that it would not improve the situation to add an
>additional router to act like a filter between the switch and the server?
>
>
>INTERNET---[router]---[switch]---[10 workstations]
> |
> [router2]
> |
> [fileserver]
>
>
>Also, will we see multicasting work without a router or an rsm but only with
>a switch in the future (I know that switches don't understand IGMP)?
>
>Thanks,
>
>Ole
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Ole Drews Jensen
> Systems Network Manager
> CCNA, MCSE, MCP+I
> RWR Enterprises, Inc.
> [EMAIL PROTECTED]
> http://www.oledrews.com/ccnp
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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>
>
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