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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Large volume of WHOIS requests generated by NetPath

Large volume of WHOIS requests generated by NetPath

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Updated May 2, 2017

Overview

This article describes why a large volume of WHOIS requests are generated by NetPath™ and sent to the Regional Internet Registry (RIR), such as ARIN.  

Environment

NPM 12 and later

Detail

Ports 43 and 443 are used by NetPath™ to query information about discovered IP addresses and networks. The WHOIS requests can be seen from the main Orion server and allow for monitored services to keep accurate results. SolarWinds worked with RIR to develop caching and several other optimization mechanisms for the volume of requests sent by NetPath.

 

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