Deep Packet Inspection (DPI) Helps Measure Application Response Time, Ensure Quality of Experience
Overview
Service providers and enterprises need precise information on the applications traveling across their networks to rapidly troubleshoot and resolve performance issues, ensure sufficient bandwidth and quality of service/quality of experience, and rightsize their networks for peak performance. While NetFlow monitoring can help, the technique provides network managers with a port number only. In cases where multiple applications use the same port number, user organizations must have a deeper look at the nature of an application, beyond the IP header. For a sharper application performance management view, they need deep packet inspection (DPI).
With InfoVista’s 5View packet capture and packet analysis solutions, featuring deep packet inspection (DPI), service providers and enterprises can look inside the packet, at the URL. This enables them to identify who is using the application, the traffic type or priority of that application, which client and server is being used, and the most critical metric for understanding end-user experience: application response time—that is, the time it takes a client to connect to the server and use the application.
Key Features
InfoVista 5View™ solutions for data capture and analysis and deep packet inspection (DPI) provide:
- Deep application visibility to help network managers quickly identify which applications and users are eating up IP network bandwidth and thus negatively impacting critical but easily degraded, performance-sensitive applications such as VoIP and video
- Out-of-the-box workflows that accelerate troubleshooting and application and network performance problem resolution, leading to greater operational efficiency and improved end-user quality of experience
- The ability to determine a specific application or application type’s impact on network performance, enabling the network operations team to allocate bandwidth accordingly for not only application performance assurance, but network rightsizing and capacity management
- The ability to identify which applications should be optimized, so that the most-business-critical services can be given priority treatment
- URL discovery, so that the URLs and Web sites that users are accessing over the network can be identified
- Proactive network security by helping network operations identify abnormal behavior such as when unusual IP addresses are trying to connect to multiple servers or ports
