North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: PSINet/Cogent Latency
Some long long long time ago I wrote a small tool called snmpstatd. Back then Sprint management was gracious to allow me to release it as a public-domain code. It basically collects usage statistics (in 30-sec "peaks" and 5-min averages), memory and CPU utilization from routers, by performing _asynchronous_ SNMP polling. I believe it can scale to about 5000-10000 routers. It also performs accurate time base interpolation for 30-sec sampling (i.e. it always requests router's local time and uses it for computing accurate 30-sec peak usage). The data is stored in text files which are extremely easy to parse. The configuration is text-based; it also includes compact status alarm output (i.e. which routers/links are down), PostScript chart generator, and troff/nroff based text report generator, with summary downtime and usage figures + significant events. The tool was used routinely to produce reporting on ICM-NET performance for NSF. This thing may need some hacking to accomodate later-day IOS bogosities, though. If anyone wants it, I have it at www.kotovnik.com/~avg/snmpstatd.tar.gz --vadim On Mon, 22 Jul 2002, Gary E. Miller wrote: > > Yo Alexander! > > On Tue, 23 Jul 2002, Alexander Koch wrote: > > > imagine some four routers dying or not answering queries, > > you will see the poll script give you timeout after timeout > > after timeout and with some 50 to 100 routers and the > > respective interfaces you see mrtg choke badly, losing data. > > Yep. Anything gets behind and it all gets behind. > > That is why we run multiple copies of MRTG. That way polling for one set > of hosts does not have to wait for another set. If one set is timing > out the other just keeps on as usual. > > RGDS > GARY > --------------------------------------------------------------------------- > Gary E. Miller Rellim 20340 Empire Blvd, Suite E-3, Bend, OR 97701 > [email protected] Tel:+1(541)382-8588 Fax: +1(541)382-8676 > >
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