Steve, At bit OT but.... Is one of your peers mediacom by chance? On Wed, Jul 12, 2017 at 9:30 AM, Larry Smith <[email protected]> wrote: > http://bgplay.routeviews.org > > On Wed July 12 2017 09:07, Mike Hammett wrote: >> RIPE Stat >> Route Views >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> >> Midwest Internet Exchange >> >> The Brothers WISP >> >> >> >> >> ----- Original Message ----- >> >> From: "Steve Jones" <[email protected]> >> To: [email protected] >> Sent: Wednesday, July 12, 2017 9:05:42 AM >> Subject: [AFMUG] BGP history >> >> >> >> I don't know how to use these looking glasses and understand what I'm >> seeing, probably pretty simple. what we have is two upstreems we peer with. >> Our ASN consists of a /22 we announce as /24s, two on each provider (bad, I >> know) what happened this morning was one upstream seems to have gotten some >> mud in their pudding and the interwebs couldn't get to those two /24. >> Because I'm pretty good at finding ways to ensure all my practices are bad >> our network DNS resolvers were on those two /24 also, so pretty much all >> our customers are pissed >> >> >> I ultimately disabled all my static routes internally, added the two /24 to >> the provider that wasn't smoking crack and dropped my ospf default route on >> the bad router and killed the peering session. >> >> >> when I added the two, before anything else, it brought everyone back up, >> they were going out bad peer 1 and in good guy peer 2, So had I been >> running full /22 on both peers I assume we wouldn't have known there was an >> issue other than problem calls for stuff that doesn't like assymetric >> paths, probably would have resulted in hours of troubleshooting before I >> looked at BGP >> >> >> I get bgpmon alerts, but have received none this morning >> >> >> >> >> how can I look back historically to see what of mine was being announced >> where and by whom? >> >> >> and whats the best free or low cost monitoring that I can get good alerts >> on? >> >> >> This may turn out not to have been a BGP issue, the upstream may have just >> stubbed their toe > > -- > Larry Smith > [email protected]
-- Micah Miller Network/Server Administrator Network Business Systems, Inc. Phone: 309-944-8823
