Would anyone care to give some operational insight into the surge of BGP routing instability this morning between appx 08:00 and 10:00 GMT? Turned on and off like a lightswitch, as seen from GRADUS (http://gradus.renesys.com) -- we saw cleanly correlated and sustained increases in the prefix announcement and withdrawal rates reported by all GRADUS feeds during that window. --jim p.s. By the way, we haven't seen the kind of sustained increase in "maintenance cycle" routing instability that we were expecting after the SNMP news broke. Some increase in the background noise, but nothing major overall. Good job, guys :)
You can track the proceeding at http://www.cybertelecom.org/ci/computerv.htm Comments can be filed in the proceeding through the FCC's Electronic Comment Filing System http://www.fcc.gov/e-file/ecfs.html The comment period closes 75 days after publication in the Federal Register - and it has not been published yet so the clock has not started counting. More information about the Computer Inquiries themselves can be found at http://www.cybertelecom.org/ci/ciii.htm including a guide descibing what the rules are today -B ===== | Washington Internet Project | | www.cybertelecom.org | | cannon(a)cybertelecom.org | __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com
On Tue, 19 Feb 2002 cowie@renesys.com wrote:
p.s. By the way, we haven't seen the kind of sustained increase in "maintenance cycle" routing instability that we were expecting after the SNMP news broke. Some increase in the background noise, but nothing major overall. Good job, guys :)
Several providers announced scheduled maintenance last week. UUNET/Worldcom listed 60+ different cities in its maintenance announcement for Tuesday 2/19, and more on Thursday. Abovenet said they would be upgrading some of their routers on Monday 2/18 and Tuesday 2/19. Sprint had a few maintenance items scheduled for Tuesday. It wouldn't surprise me if other providers had also scheduled maintenance for Tuesday morning. There doesn't seem to much variation in the total BGP announcements, average latency or packet losses, so I don't think it was someone tickling lots of BGP routers.
Several providers announced scheduled maintenance last week. UUNET/Worldcom listed 60+ different cities in its maintenance announcement for Tuesday 2/19, and more on Thursday. Abovenet said they would be upgrading some of their routers on Monday 2/18 and Tuesday 2/19. Sprint had a few maintenance items scheduled for Tuesday. It wouldn't surprise me if other providers had also scheduled maintenance for Tuesday morning.
There doesn't seem to much variation in the total BGP announcements, average latency or packet losses, so I don't think it was someone tickling lots of BGP routers.
Thanks to all who responded. It looks very much as if this surge corresponds precisely with one of the above-mentioned maintenance windows (further this deponent sayeth not). If you own enough routers, and tickle enough of them at once, you can cause quite a stir. --jim
participants (3)
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cowie＠renesys.com -
Robert Cannon -
Sean Donelan