How to resolve "Active,Couldn't classify" error while Discovering Network Devices ?

[Akshatha3]

Hi People!!

I am new to ServiceNow. Please help me with the below query.

What are all the Pre-requisites needed to Discover Network Devices - Switches and Routers apart from SNMP community string and port 161. When I tried Discovering Couple of Network Devices IP's, I am getting "Active,Couldn't classify" error.

Thanks in Advance!!

Regards,

Akshatha

[Akshatha Ballal]

Hi,

If you are sure that you have the snmp community and port properly configured, you can validate it by testing the particular snmp community string(snmp v2 credential) against that IP. If it is not validated, please work with your network team to resolve this. If it is and you're still getting the error, the cause is most likely you don't have that OID returned for that device under any snmp classification. 

sysObjectID is a parameter returned from snmp query that determines the kind of device and where it should be classified. Please search for sysoid in the input entry of ECC queue for snmp classify in your discovery ECC queue and search the same in SNMP OIDs(discovery_snmp_oid) list in servicenow. If it is not found, please add a new oid under the proper snmp classification (router, switch, firewall) with the model, model ID and other necessary information. 

If you don't see the sysoid in the payload of snmp classify ecc queue, then the device has timed out and has not returned the result. Try increasing the snmp timeout of MID server used. If the issue still persists, you may consider taking it up with the network team to resolve it or classify the device based on any other entities to which it is responding. Although servicenow does classify based on classification criterion, making use of sysoid is the best practice and has the first priority in servicenow.

Regards,

Akshatha