Duplicate Next Hop Routing Rule entriesIssue <!-- div.margin { padding: 10px 40px 40px 30px; } table.tocTable { border: 1px solid; border-color: #e0e0e0; background-color: #fff; } .title { color: #d1232b; font-weight: normal; font-size: 28px; } h1 { color: #d1232b; font-weight: normal; font-size: 21px; margin-bottom: 5px; border-bottom-width: 2px; border-bottom-style: solid; border-bottom-color: #cccccc; } h2 { color: #646464; font-weight: bold; font-size: 18px; } h3 { color: #000000; font-weight: bold; font-size: 16px; } h4 { color: #666666; font-weight: bold; font-size: 15px; } h5 { color: #000000; font-weight: bold; font-size: 13px; } h6 { color: #000000; font-weight: bold; font-size:14px; } ul, ol { margin-left: 0; list-style-position: outside; } --> Symptoms Duplicate Next Hop Routing Rule entries Cause The "SNMP - Routing" Probe is being triggered together with the pattern Network Router pattern. The pattern also collects this data, and when this happens, both of them keep creating the duplicates. Our documentation says it is ok:https://docs.servicenow.com/csh?topicname=r_DataCollDiscoNWRouteAndSwitch.html&version=latest However, this has been seen a few times. Resolution Option 1: 01) Disable the following probe: https://<instance-name>.service-now.com/discovery_classifier_probe_list.do?sysparm_query=child.nameLIKERouting 02) Delete test CI with its associated data. 03) Run test discoveries to confirm no more duplicates are created. Option 2: 01) Disable the SNMP Fields on the SNMP - Routing Probe:https://<instance-name>.service-now.com/discovery_probes_snmp.do?sys_id=a2bada940a0a0b6100d5e020a828fdeb02) Delete test CI with its associated data. 03) Run test discoveries to confirm no more duplicates are created.