LET'S JUST GO AROUND

Kim Hubbard kimh at internic.net
Thu Feb 6 15:36:40 EST 1997


>
Valdis,

You keep quoting from the *assignment* section of RFC2050.  That 
criteria is for end-sites requesting address space directly from
the registries.  Please reread the RFC, specifically the *allocation*
section that refers to ISPs.

Regards,

Kim Hubbard

 
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> 
> On Thu, 06 Feb 1997 17:37:44 +0200, Alan Barrett said:
> > Both small and big providers have to justify their address space
> > requirements to the registry.  Both small and big providers have to either
> > pay for others to carry their routes, or persuade others that their routes
> > should be carried for no charge. 
> > 
> > So, in what way are small businesses being unfairly treated? 
> 
> The basic problem is that the "general guidelines" in RFC2050 say that
> you should have 25% *IMMEDIATE* use of an allocation - you don't get
> one until you will be at least 1/4 full.. So for a /19, you can be
> denied getting it until you have 2048 addresses *IN USE*.  And this is
> *after* you've already started doing DHCP and all for those PC's and
> Macs that subscribe to your ISP.
> 
> So it's possible that you don't get a prefix big enough to really
> multihome until you have so many subscribers that you have 2K of them
> connected *AT ONE TIME*.  If you assume that the average subscriber is
> connected 2 hours a day, and mostly within a 12-hour "prime time",
> this means you need close to 12-15K or more subscribers to get 2K on
> at one time so you can get your /19.
> 
> Now - try to get to 15K subscribers *without* multihoming.  Remember
> that if you're only single-homed, you're right off the bat less
> reliable than a multi-homed (the whole point is redundancy).  This
> will cost you market share.
> 
> We're not talking about "mom and pop" ISPs getting cut out here.
> We're talking about ISPs that have 15K customers being cut out, to the
> benefit of those that are already 10X bigger than that.  Hmm.. 15K
> customers, at $20/mo a pop, that's about $3.6M/year cash flow.
> 
> And still not big enough to qualify for effective multihoming.
> 
> That's the problem.  
> 
> -- 
> 				Valdis Kletnieks
> 				Computer Systems Engineer
> 				Virginia Tech
> 
> 
> 
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