[AusNOG] Vocus Harbour Crossing

[Lincoln Dale]

On Fri, Jun 15, 2012 at 11:54 PM, Joshua D'Alton <joshua at railgun.com.au>wrote:

> For those interested, ignoring transmission/routing delays, 400m relates
> to about 1.5 micro seconds depending on the frequency and extact medium.
> Adding routing gear brings that up to about 200 micro seconds round trip.


Some routers may take 198us to forward a packet. But for the L3 switches
deployed by people who care about latency, the bar is currently at under
500ns forwrading latency (less than half a microsecond) for something that
is a L3 switch with all features enabled.
That latency is a moving target as there at least 3 different companies all
competing building things of even lower forwarding latency.


cheers,

lincoln.
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