North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Two Tiered Internet
On Wed, 14 Dec 2005 10:54:43 +0000, [email protected] said: > > But there is another way. If you provide enough bandwidth > so that your peak traffic levels can travel through the > network without ever being buffered at any of the core > network interfaces, then everybody is a king. If you charge > your customers a higher fee for such a network than your > competitors do, then we have a tiered Internet. This > unobstructed network was pioneered by Sprint on it's > zero-CIR frame relay network and they carried this forward > into their IP network as well. Other companies have > carried forward this architecture as well. That's the way all serious providers did IP-backbone engineering when there was no QoS. Local congestion in the access-network would happen from time to time even back in the 90s, but a network with congestion-problems in the backbone would soon be a network with no customers. Even today, it's the superior principle for backbone engineering. Most QoS-handling (and other traffic-engineering) gizmos, although some look good on paper, are too complex and too labour-intensive to offer cost-saving or other operational advantage in large IP backbones. Bandwith in the form of long-haul dark-fiber or colors would have to be much more expensive to change that equation. //per -- Per Heldal [email protected]
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