All things related to multicast

[Guy Almes <>]

Tim,
  If they react the way I suspect they might, remember that Internet2
often has open engineering positions. :-)

  Seriously, getting rid of the shared 10BaseT hubs would be a good
thing for many different reasons!  And many of those who hang onto them
are not aware of the degree to which they are impeding progress. 
Multicast is becoming very valuable.

  Regards,
        -- Guy

Tim Ward wrote:
> 
> Hey all,
> 
> I'm tired of users with shared ports preventing a 100% L3 multicast
> deployment on our campus.  More than once I've thought about just
> turning it on everywhere, to all of our 300 or so subnets and let the
> chips fall where they may.  My suspicion is that there won't be too
> big of an effect on the shared 10 users, unless there is some highly
> desirable multicast content.
> 
> So what do you all think the repercussions will be in terms of network
> operation if we take this step?
> 
> Network description:
> 6509 based L3 GE backbone, feeding 3500s and 2900s, with users connected
> to 3500s and 2900s and still some shared 10 hubs.  Roughly 50/50 mix of
> users on hubs and users on switches.  We ping all of the hubs and switches
> we support (which is darn near all of them in the comm closets) every 2
> minutes to check for reachability.
> 
> Tim
> --
> Tim Ward                                  
> 
>       V 847-467-1449
> Manager of Operations and Engineering  G172 Leverone Hall  F 847-467-5690
> Telecommunications and Network Services            Information Technology
> 2001 Sheridan Rd  Evanston IL 60208-2030          Northwestern University