The energy company is a long‑time user of the NETSCOUT® nGeniusONE platform with InfiniStreamNGs to monitor, report and triage multiple applications across several locations. However, the CRM was not regularly monitored. This, combined with the energy company’s recent upgrade to a 40 GB backbone created an opportunity to add new ISNG appliances. When the IT team focused instrumentation and workflow on the application, they immediately saw the reported delays. They also drilled into the network’s performance for latency issues only to discover that it was not actually the network causing the problem, rather, several of the application servers were overloaded, causing random and inconsistent response times. Other findings included disregard of TCP window sizing, with large files being sent that caused packets to drop and be re‑transmitted, and DNS look‑up problems with servers that did not have permissions. To further isolate and triage the issues, the company added nGeniusPULSE with contextual workflows from nGeniusONE to provide cross organizational teams with an integrated, cohesive view of servers and network devices that impact their performance of the CRM and other critical services. Using nGeniusPULSE, they saw the hop‑by‑hop path performance and pulled stats from the devices to find the times when the app servers were overloaded. This data helped the network teams see when the network path usage becomes compromised and showed exactly when path hops are used and where there are delays. To address the problems remote users were having accessing the cloud applications, the IT team used nGeniusPULSE virtual nPoints to verify the response time and path to the 3rd party servers. nGeniusPULSE tests revealed that the 2.4 GHz channels were overloaded; to resolve the problem they moved clients using mission‑critical applications to their 5 GHz channel.
Read More