VPN Management Solution

Ensuring success through every phase of the VPN deployment lifecycle has a tremendous impact on your business:

How does the VPN Management Solution work? 

• Phase 1: VPN Validation Testing

  Before rolling out, validate the VPN vendors’ KPIs. Using VIAVI Solutions TeraVM Classic, your organization can emulate leading VPN vendor clients, including Cisco, Pulse Secure, Fortinet, F5, Huawei, and AT&T SSLT.

  TeraVM is a fully virtualized Layer 2-7 application emulation and security validation solution, allowing enterprises to test and secure their physical and virtual devices, networks, and services.

  TeraVM can answer questions such as: 
  •    How many VPN simultaneous tunnels can be established?
  •    How quickly can tunnels be brought up / torn down?
  •    What happens to application performance with real video, voice & data applications in the VPN tunnels? 
  •    What happens to VPN GTW functionality, stability & scalability with different cryptographic & TLS settings on the clients?

  
• Phase 2: End to End Pre-Deployment Testing

  Combining TeraVM and Observer Platform serves increases  project success.  VIAVI Observer Platform provides end-user experience scoring so you can see immediately that network KPIs are being met before you go-live, de-risking the chance of introducing performance-related issues.

  
• Phase 3: VPN Monitoring and Assurance 

  Once the VPN vendor solution has been successfully deployed, it is critical to monitor ongoing KPI’s to ensure optimal network performance and drive IT business delivery. 

  VIAVI Observer Apex will monitor the VPN service performance showing end-user experience scores and domain isolation breakout. 

  The beauty of Observer is that it gives comprehensive network visibility by aggregating packet, enriched netflow, and active test data. This means all levels of expertise get access to various tiers of IT visibility, using their preferred data sources for QoS measurements, baselining, capacity planning, and more. This single, integrated interface improves operational efficiencies through boosted data quality, intuitive visualizations, and simplified workflows for any level of IT user.

   By leveraging enriched flow to gather volumetric data from VPN concentrators, Observer Platform can paint a picture of your network’s VPN health. Based on the monitoring output, optimization of the VPN configuration can take place overtime. For example, if Observer tells you that 40 % of the traffic goes to O365, you can configure split tunnels and clients to optimize bandwidth utilization.
• Phase 4: Troubleshooting

  When it comes to troubleshooting a poor VPN connection, it’s critical to have visibility into KPI’s such as throughput, latency, and packet loss to optimize root cause analysis. 
  VIAVI Fusion equips network operators and enterprises with a valuable set of standards-based test tools that deliver accurate test results on which managers and engineers can depend. Fusion monitors and ensures network performance and verifies Service Level Agreements in both virtual and physical networks.

  In case of a poor VPN connection reported either by the end-user or by the VIAVI monitoring solution, the end-user or the IT support engineer push PC client application (vTA agent via email link) to their remote users to run industry standard (RFC 6349 TrueSpeed) throughput test based on bandwidth allowed per user of VPN to identify where the issue might be coming from:

  • Home network issue
  • Internet issue
  • VPN issue
  • Application issue

  

  Call center agents can use TCP (TrueSpeed) or UDP throughput measurements to accurately evaluate a customer’s network performance remotely, without dispatching a field technician. An easy-to-use, web based interface lets the call center agent configure all test parameters so that the customer just has to click on a customer-specific URL and press “Start.” Detailed, easy-to-read results and interpretations indicate key performance metrics like TCP/UDP throughput, round-trip-delay or packet loss.

  Troubleshooting with Observer also allows you to address performance issues before they increase in severity via the problem domain isolation breakout feature to answer the following questions:

  • Is the VPN the cause of the problem? 
  • If it is a network issue, is it the corporate network, VPN, or ISP?
  • Where is the delay coming in? What truly is to blame for a performance issue?
  • Can you tell whether its network, application, or server?