Abstract

Network service providers and operators of sophisticated enterprise networks need to deliver on their promise of service quality to their customers. To achieve that goal, active, real-time, end-to-end network monitoring is required - for two reasons. First, such monitoring can quickly reveal any network anomalies that could impact performance. Second, only accurate active monitoring can prove that network conditions meet or exceed service level requirements.

J3TEL commissioned Tolly to evaluate the accuracy of its Qual’IT end-to-end network metrology (network measurement) solution. Tolly engineers simulated wide-area network (WAN), metropolitan area network (MAN) and local area network (LAN) environments with speeds up to Gigabit Ethernet (GbE). In each environment, Tolly engineers generated specific traffic levels and, using a network emulation tool, specific network conditions related to packet loss, latency and jitter. Subsequently, Tolly outfitted each network environment with a pair of J3TEL Qual’IT network monitoring devices to monitor, measure and report the network conditions that it was observing. The J3TEL solution provided accurate reporting in all scenarios.