Pinging a Device Every Second

Sat Dec 15 22:45:55 UTC 2018

On 12/15/18 12:03 PM, Saku Ytti wrote:
> On Sat, 15 Dec 2018 at 18:52, Stephen Satchell <list at satchell.net> wrote:
> 
>> Short answer: about 1500 bits of bandwidth, and the CPU loading on the
> 
> I can't parse this.
> 
> 1000 hosts at 1 pps would be 672kbps on ethernetII encapulation with
> minimum size frames.
> 

The 1500 bits are for each ping.  So 1000 hosts would be 1,500,000 bits
per ping cycle at the monitor server, but not on each leaf router.  The
designer would need to analyze the network topology to see if there are
any possible choke points.  In a cable internet system, 1000 customers
on a single up/down channel pair would require 700 kilobits each way per
ping cycle.  Yes, this is payload bandwidth, it doesn't include packet
overhead.