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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Outbound Route Optimization
On Wed, Jan 21, 2004 at 09:05:46PM +0000, Paul Vixie wrote: > > > My questions are these: > > > > "Is sub-optimal routing caused by BGP so pervasive it needs to be > > addressed?" > > that depends on your isp, and whether their routing policies (openness > or closedness of peering, shortest vs. longest exit, respect for MEDs) > are a good match for their technology/tools, skills/experience, and > resources/headroom. In practice, all of the above just turn out to be marketing sauce or in some cases, outright lies. There is no substitute for dollar spend (opex and capex) to make a network perform. There is no magic sauce, there is no silver bullet. You have adequate resources, you will have adequate performance. > metrics, which is usually not very good. but there's another limit, which > is bgp path symmetry. most tcp implementations are still stone-aged AKA optimizing for outbound doesn't do you any good on optimizing for inbound. > (experience says they're not going to trust your MEDs even if they're close > enough to hear them.) Most people don't trust MEDs for a reason paul, and it is not because they want to mess with your customers. /vijay
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