On Fri, 2003-10-03 at 10:57, Simon Westlake wrote: > Has anyone ever experienced a problem with MRTG being unable to get SNMP > data, although the device is responding to SNMP?
Yes. There are a number of really wierd bugs out there. There is one issue with the request-id used, where if it goes above a certain value some non-standard clients don't like them. This is documented, obscurely, in the release notes for the SNMP_Session module, with this note: SNMP_Session.pm 0.93: There's a new variable $default_avoid_negative_request_ids. If it is set to a non-zero value, newly created SNMP_Session objects will be configured so that only request IDs in the range 0..231-1 will be used. This is needed to work around a bug in several SNMP agents. If you sometimes see requests fail, and the error message always shows a negative request ID when that happens, please notify the vendor of your agent of the bug. While the vendor fixes the problem, you can set the variable mentioned above to work around the bug. The problem has been described in a few mails on the mrtg-developers mailing list that can hopefully be found http://www.ee.ethz.ch/~slist/mrtg-developers/msg01609.html in the archive. -- Daniel J McDonald, CCIE 2495, CNX Austin Energy -- Unsubscribe mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/mrtg FAQ http://faq.mrtg.org Homepage http://www.mrtg.org WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
