Walking the routing table via SNMP on a MikroTik with many routes seems to be a bad idea. I tried it with our MikroTik pulling a full feed from our upstream, and I rebooted the router just before it depleted all 2GB of RAM. It normally sits at 1.7GB free. As soon as our NMS started walking the routing table, the memory began to disappear in leaps and bounds. We use Zenoss, so I just disabled the RouteMap plugin and it hasn't been an issue since.
So BGP and SNMP isn't necessarily bad, but venture into OID RFC1213-MIB::ipRouteDest (1.3.6.1.2.1.4.21) at your own peril. Regards, -Kristian On Tue, 2011-08-09 at 10:25 -0500, Terri Kelley wrote: > I received an alert on my bgp edge mikrotik for high memory usage. I am > running snmp, thats how I got the alert. Memory use went from 25 to about 88 > percent suddenly. I really can't find a reason. The router is a power router > 732 and up time on it has been 90 days. 1gig of memory plenty of cpu etc. > RouterOS is 4.17. > > I just read a blurb from last August where someone was saying running snmp > with bgp caused them to crash. No further on that. Anyone seen this or have a > clue. I haven't rebooted it yet. That would really suck if that is the case. > Makes monitoring your router tough if that is true. > > Terri Kelley > Network Engineer > 254-697-6710 x 1140 > Farm to Market Broadband > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://www.butchevans.com/pipermail/mikrotik/attachments/20110809/59e0065d/attachment.html> > _______________________________________________ > Mikrotik mailing list > Mikrotik@mail.butchevans.com > http://www.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS > _______________________________________________ Mikrotik mailing list Mikrotik@mail.butchevans.com http://www.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
