[AusNOG] endace

[Lincoln Dale]

On Thu, May 31, 2012 at 7:27 PM, carl gough [mobsource]
<carl at mobsource.com>wrote:

> Ive been told that at 10G/s 40G/s and 100G/s there is no other technology
> that captures 100% of packets -
>

Whoever told you that is wrong.

10GbE linerate is only 1000MB/s, 40GbE linerate is 4000MB/s, 100GbE
linerate is 10000MB/s.
There's no rocket science in 'capture 100% of packets' at 10G, 40G or 100G
is relatively trivial.

Doing something meaningful with said data is less trivial but again isn't
too hard really. Its really just a function of N x disk spindles and
streaming write speeds.

Can this be done 'trivially' using off-the-shelf equipment?  Actually it
can.  But its not necessarily cheap particularly for 40G/100G and clearly
one needs a lot of disk spindles to sustain linerate and/or store for
extended time periods.


cheers,

lincoln.

Lincoln Dale | Principal Engineer, Arista Networks Inc. |
ltd at aristanetworks.com
au did: +61 3 9999 7442 | m: +61 417 457 965 | us did: +1 408 547 5782
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