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What mean error code "SNMP error # -2003"



For several days we have at the same time an error on one of our Cisco 6509 core switches. This error occurs day after day between 22:07 to 22:15 on SNMP sensors.

error-2003 prtg snmp

Created on Sep 10, 2013 11:22:51 AM

4 Replies



Hi, does the error appear and disappears without any impact? Is the error on all SNMP sensors of the device or only on a specific Sensor? Is the connection to the switch directly over ethernet or over the Internet?

Created on Sep 10, 2013 1:59:24 PM by  Michael Schmidt [Paessler Support] (150) 1 1



from my point of view ... Yes, the error affects all SNMP sensors on the device, the switch is connected directly via Ethernet

Colleagues who diagnosed the problem suggested a switch is heavy load of SNMP requests - 100 per second

Created on Sep 11, 2013 8:30:29 AM



100 SNMP requests per second? Where do they come from? Which Scanning-interval do you have in PRTG?

Maybe is the SNMP service overloaded. The switch is not configured to restart at this time?

Created on Sep 11, 2013 9:12:39 AM by  Michael Schmidt [Paessler Support] (150) 1 1



SNMP requests come form PRTG, Netcrunch and inventory tools Cisco Prime . I have 326 sensors on the switch. Scan interval is set to 5 min.

I deactivated monitoring of the device for time of inventory scan and that help.

Created on Sep 19, 2013 2:07:33 PM

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