Flow source x.x.x.x is not responding! Please check whether it is working properly.
Flowmon appliance is receiving the following warning: "Flow source x.x.x.x is not responding! Please check whether it is working properly."
Product: Flowmon OS
One of the issues this can be caused by is that SNMP requests timeout is 250ms, which is the default live check timeout and SNMP info update timeout - resulting in these warnings
|Steps to Reproduce:|
|Error Message:||Flow source x.x.x.x is not responding! Please check whether it is working properly.|
|Cause:||The flow source is not responding fast enough to respond SNMP requests|
User can increase the timeout values in "Configuration Center - FMC Configuration - Sources". Increasing it to 500ms on both timeouts should be generally enough.
Measure the response time in CLI with the following command:
time snmpbulkwalk -Cr20 -v 2c -c "<community_string>" -r 1 -t 10 <flow_source_IP> sysDescr
Adjust the timeout according to measured value