Mike:
When InterMapper uses SNMP to query the device, the Ethernet speed is reported via the ifSpeed MIB variable. InterMapper reports exactly what the SNMP agent reports.
For a Net-SNMP agent running on Linux, the agent may not be able to determine the correct ifSpeed of the Ethernet interface. The agent defaults the ifSpeed to 10 Mbits. You can add the 'interface' directive to your snmpd.conf file to override the agent's guessed value.
For Non-SNMP probes, IM guesses the interface speed based on the other SNMP devices attached to the same network.
regards,
Bill Fisher Dartware, LLC
On Jul 7, 2004, at 12:59 PM, Mike Lieberman wrote:
How does IM decide when a NIC is runnint at 10M or 100M? Does it default to
10M and modify that if the SNMP packet informs that it is running faster?
The reason I ask is that I have a number of systems here running Debian
Linux 3.0 with the 2.4.18 kernel. SNMPD is set up for readonly and
read/write. Paranoid is commented out. The these NICs all run at 100M but IM
reports 10M.
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