On Thu, 2007-11-08 at 09:39 +0000, John Cushnie wrote: > Hi, > Also where do the Max speeds reported for the interface come from?
I just re-read the source code. If you are using snmp version 2 or 3, then ifHighSpeed is consulted if ifSpeed is zero, undefined, or 2**32 - 1. If you are using snmp version 1, then ifSpeed is used without any similar checks. However, it would be theoretically possible to use snmp version 1, even with a 10G interface, if Interval: were set low enough. However, I think you need an interval of .8 seconds. But it would be possible to have an interface with a speed greater than 4Gb/s (maybe some sort of GigEtherChannel) that could polled with snmp v1. I think a better patch would be to: 1. Always check ifHighSpeed, even if snmpv1 is used. 2. Warn if the maximum speed exceeds the limits of 32 bit counters for the interval selected. > > 1GB is reporting 125.0 MB/sec > > 10GB is reporting 536.9MB/sec > -- Daniel J McDonald, CCIE #2495, CISSP #78281, CNX Austin Energy http://www.austinenergy.com _______________________________________________ mrtg mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/mrtg
