Thousands of hosts on a gigabit LAN, maybe not

Roland Dobbins rdobbins at
Sat May 9 01:55:16 UTC 2015

On 9 May 2015, at 1:53, John Levine wrote:

> What's the rule of thumb for number of hosts per switch, cascaded 
> switches vs. routers, and whatever else one needs to design a dense 
> network like this?

Most of the major switch vendors have design guides and other examples 
like this available (this one is Cisco-specific):


Some organizations like Facebook have also taken the time to write up 
their approaches and make them publicly available:


Roland Dobbins <rdobbins at>

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