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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: BGP Economics ?
Is this cessation of growth real ? Is this a sign of the recent economic slow-down,If you look at the view from AS286, KPNQwest, (http://www.mcvax.org/~jhma/routing/bgp-hist.html) (also I've just started up looking as AS286 remotely at http://www.telstra.net/ops/bgp/as286) you see nothing of this slow down that AS1221 sees. INdeed the AS286 view suggests that the underlying drivers are HIGHER than the sull FIB tale - compare the green and blue curves to the red curve on James Aldridge's AS286 graphs are you reach the conclusion that the table is growing _DESPITE_ recent reffects to improve aggregation modulo provider policies. So whats going on? Inside AS1221 there is a fair number of local routes (about 22,000 of them). Over the past three months AS1221 been removing noise components from the external view of AS1221 (such as removing asymmetric satellite services using BGP routing), and the view on these web pages reflects the fact that AS1221 is seeing a total route size value (round 103,000) which, over the past three months converging on the KPNQwest value (99,000). Internally to AS1221 the number of routes remains at 120,000 (I've started looking at this internal noise level at http://www.telstra.net/ops/bgp/pc3) My personal take on a bottom line: every view of the BGP table is relative, and changing local circumstances as well as changing global circumstances generate changes in the local perspective of the BGP table. Its sometimes a little harder to work out if the local changes reflect some global trend, or are just local changes. That's why multiple views in multiple locations help _a lot_ in working out the difference between global and local trends. In this case it really does appear to be just local issues. So, if there is a belief that BGP table growth has slowed down in the first three months of this year due to social pressure, I do not support such a view even though the AS1221 data appears to indicate this. Its just local issues. The AS286 view supports the view that the underlying growth drivers are as strong as ever and the various efforts of nag mail of network operators has been largely (and predictably) ineffectual. At 4/8/01 08:16 AM, Marshall Eubanks wrote: Dear Geoff;
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