an over-the-top data center

Måns Nilsson mansaxel at
Mon Dec 1 18:32:11 UTC 2008

--On måndag, måndag 1 dec 2008 11.53.58 -0500 "Patrick W. Gilmore"
<patrick at> wrote:

> On Dec 1, 2008, at 11:06 AM, Måns Nilsson wrote:
>>> End of day, an IXP is not some magical thing.  It is an ethernet  
>>> switch
>>> allowing multiple networks to exchange traffic more easily than  
>>> direct
>>> interconnection - and that is all it should be.  It should not be  
>>> mission
>>> critical.  Treating it as such raises the cost, and therefore  
>>> barrier to
>>> entry, which lowers its value.

Yes. I do not disagree. The alternates that popped up and made Netnod
switch to Ethernet from SRP were most welcome. SRR mode on that ring was
not funny, btw. 

> Of course knowing where the fiber is does not stop the backhoes.  It was
> obvious you were being silly, so I ignored it. 

Ok. Indeed. 

> By that logic, providers
> should not check any fiber path they purchase because it will not stop
> the backhoes.  I suspect most providers will continue to buy from
> multiple providers, check the paths themselves, ensure grooming onto a
> single path is not a problem, and several other perfectly valid
> operational best practices which are impossible at NetNod.

Netnod with the help of Stokab can guarantee that the two paths to switches
A and B are diverse. It is a normal requirement one can make (at a cost,
but that is to be expected) when sourcing Stokab fibre. They know where
their stuff is and understand the importance of getting it properly
separated. Other providers in Sweden are similar. I have no reason not to
trust them, having seen the inside of several large calls for tender on
dispersed path plants, with fibre paths well documented. That the path of
the last mile to the cave is hidden and secret is a very small problem. 
> OTOH: My paragraph above yours is a serious consideration, which you have
> blithely ignored.

Not so anymore, if I've understood correctly. 

Drop this dead horse? 
Måns Nilsson			M A C H I N A

Hello, GORRY-O!!  I'm a GENIUS from HARVARD!!
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