Quick Looks

nGeniusONE for VPN Monitoring

NETSCOUT Quick Looks

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l QUICK LOOK l E N T E R P R I S E The availability and performance of remote access infrastructure like Virtual Private Networks (VPNs) are critically important to enterprises today due to the dramatically increased use for remote workers in the wake of the COVID-19 pandemic. As VPNs afford companies the most secure way of digitally connecting employees to corporate resources, it has become an ever-more essential resource to enterprise businesses. Not surprisingly, VPN dominates the remote access market for enterprises, with that global market expected to exceed $114.5 billion by 2027 according to recent analysis by Bizwit Research & Consulting LLP. For employees connecting to corporate resources remotely over VPNs, anything less than a flawless experience is frustrating and demotivating. To corporate management, delays and unavailability are productivity killers and a negative for IT. Frankly, it is the last thing employees should need to wrestle with while scrambling to access enterprise resources in new and unfamiliar ways. As a result, visibility is a necessity for VPN planning, ongoing operations, triage and troubleshooting. It is not just a nice to have now, but a need to have! The NETSCOUT ® nGeniusONE ® Service Assurance platform leverages smart data generated by patented Adaptive Service Intelligence™ (ASI) technology in InfiniStreamNG ® (ISNG) software- and hardware-based appliances, as well as vSTREAM™ virtual appliances. The solution monitors and analyzes packet data, providing IT with a comprehensive view of service performance across complex N-tier application environments. nGeniusONE enables IT teams to triage issues impacting VPN performance and availability faster, which ultimately reduces Mean Time to Repair (MTTR). It does this by analyzing ASI data and by providing seamless, contextual workflows. Performance Issues Addressed By nGeniusONE nGeniusONE delivers end-to-end visibility into the performance of an integrated application environment including server activity, service enablers, database tiers, application tiers, Web tiers, and the network - including activity across the VPN. In particular, nGeniusONE answers several critical questions related to active sessions, usage, and transport issues; factors that may impact VPN performance, including: • How many remote users are connected? • How much bandwidth is consumed? In volume (KB), in & out? In packets (K), in and out? • Which VPN protocols are in use? • Are there transport issues? Packet loss in or out? Responsiveness issues? Set up failures? With nGeniusONE, IT organizations benefit from being able to monitor the physical links underpinning the VPN connection for such things as network load, number of concurrent users, and overall health of the ISP link for early indications of service disruptions like packet loss, to stay ahead of, or rapidly identify, problems and determine the root cause. nGeniusONE for VPN Monitoring Figure 1: VPN Monitor view provides metrics and analysis on VPN load and performance, response time and throughput, successful vs. age-out transactions, and on packet loss over time. This particular graph shows inbound packet loss increasing from lows in the early part of the day around 4 AM to highs experienced late in the day after 8 PM.

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