Proposal was 24 hour beacon timeout and 3 beacons per timeout. That makes 3 beacons per day.
-- Jakob Heitz. On Nov 8, 2011, at 5:00 AM, "Sriram, Kotikalapudi" <[email protected]> wrote: >> >> ooc, in regards to the above: is there any detailed analysis of how much >> extra overhead we can expect from these beacons if BGPSec were deployed >> universally today? Specifically, the comment above, "an AS could cause the >> same impact on the routing system by changing other route parameters at the >> same frequency" seems to miss the point I think I see in the objection: what >> if _every_ AS must do this all the time (not just a rogue, or select few). >> How much extra overhead would ensue if (say) someone took the current set of >> all ASes and prefixes and simulated the extra update traffic needed in (say) >> a day? Maybe if we saw some numbers that told us how many additional >> updates and how much additional bandwidth this approach would require in a >> routing system like today's we could understand another aspect of much of a >> shift we are talking about? >> > > Eric, > > According to > http://bgpupdates.potaroo.net/instability/bgpupd.html > the current global BGP system produces > Average Prefixes per BGP Update: 2.24 > Average BGP Update Messages per second: 1.13 > Average Prefix Updates per second: 2.53 > From this we can compute: > Average Prefix Updates per day = 218696 > > Now if we consider a BGPSEC island of 100,000 participating prefixes > (multiple ISPs form a BGPSEC island and there is BGPSEC between > them and also in each ISP's entire customer cone): > With 24 hour beaconing interval, we would have: > Prefix Updates per Day = 100,000 (seen at each BGPSEC router) > BGPSEC Update Size = 420B (for ECDSA-256) > Average Bandwidth Required = 3.89 kbps (averaged over a day) > > Does this answer what you were asking for? > > Sriram > > > > _______________________________________________ > > _______________________________________________ > sidr mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/sidr _______________________________________________ sidr mailing list [email protected] https://www.ietf.org/mailman/listinfo/sidr
