Re: Current street prices for US Internet Transit

[Mikael Abrahamsson <swmike () swm pp se>]

On Mon, 16 Aug 2004, Deepak Jain wrote:

> Other than packet buffer depths and some theoretical ACL limits, is 
> there any reason why a 7600 network would be worse than a 12000 built 
> one? MTBF, reconvergence and other issues should all be pretty nice and 
> like others have mentioned packet buffers are not necessarily a good 
> thing <tm>.  Throughput-wise, a 7600 should be able to hold its own 
> against a 12000 provided we are talking about 40Gb/s blades and SUP720s.

I've had this discussion a few times with people working at cisco. The 
answers I usually get has to do with how well it handles overload, ie what 
happens when ports go full.

If you want to be able to do single TCP streams at 5 gigabit/s over your
long-haul 10gig network that is already carrying a lot of traffic, you
need deep packet buffers. If your fastest customer is less than 1gig and
your network is 10gig, you do not.

So, if I were to provision a transatlantic line that cost me a lot of
money, I would use a GSR or a juniper. If I were to provision a 80km dark
fiber between two places where I already own 24 pairs, there is a wide
choice in equipment.

-- 
Mikael Abrahamsson    email: swmike () swm pp se