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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: PSINet/Cogent Latency
On Tue, Jul 23, 2002 at 08:34:40AM +0200, Alexander Koch wrote: > Phil, > > 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. > > You see, the poll script is doing one after the other, > mainly, so you wait too long and then the next run starts > and then something. > > mrtg/rrd is not the tool of choice for accounting / billing > but nice enough for showing you 'backup' graphs for visitors > probably. Hi. >From http://people.ee.ethz.ch/~oetiker/webtools/mrtg/reference.html: Forks (UNIX only) On a system that can fork (UNIX for example) mrtg can fork itself into multiple instances while it is acquiring data via snmp. For situations with high latency or a great number of devices this will speed things up considerably. It will not make things faster though if you query a single switch sitting next door. As far as I know NT can not fork so this option is not available on NT. Example: Forks: 4 Of course, people would have to read the documentation first.. > > Alexander -- Matthew S. Hallacy FUBAR, LART, BOFH Certified http://www.poptix.net GPG public key 0x01938203
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