[AusNOG] Copper versus fibre in the DC

[Cameron Daniel]

Runs around some of the larger datacentres can still exceed the useful 
length of multimode fibre and once you get up to higher bit rates then 
you start needing multiple pairs.

If you're still buying vendor optics then it's probably significantly 
cheaper but if you're prepared to use OEM optics then the difference is 
negligible at 1/10G.

On 2013-10-12 6:11 pm, Reuben Farrelly wrote:
> On 12/10/2013 6:52 PM, James Braunegg wrote:
>> Dear Alastair,
>> 
>> I would recommend
>> 
>> Single mode Fibre for any rack to rack communications , or rack to
>> carrier communication .
>> 
>> Today the same single mode fibre will run 1gbit, 10gbit, 40gbit and
>> 100gbit … and I’m sure it will run 400gbit in years to come and that’s
>> before you look at wavelength technology.
> 
> What about Multimode Fibre though, given:
> 
> - It's often around half the price of single mode fibre, both in terms
> of optics and fibre media (per meter)
> 
> - It can do 1G/10G/40G/100G as well with OM4, albeit at smaller
> distances than single mode - but still much more than copper.  OM4 can
> do 10G at 550 meters with SR optics, for example.
> 
> Unless I'm missing something, I don't see why multimode wouldn't be a
> viable option also [happy to be corrected if there's something I'm
> missing here].
> 
> Reuben
> 
> 
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