Corvil » Solutions

High Performance Wans

1. Solution Overview

The corporate WAN is playing an increasingly important role in providing remote users with fast access to business critical applications. To meet the business needs in this evolving environment, maintaining the performance of the WAN is becoming more challenging due to number of trends including:

• Consolidation of server and applications hosted in one or more data centres
• Accelerating deployment of web based applications
• Greater diversity in applications including Virtualization, VoIP and Video
• Greater use of cloud and shared infrastructure services to reduce cost
• Increasing LAN speeds…but access bandwidth not keeping pace (still too expensive)

CorvilNet's real-time approach to latency, jitter and loss measurements, and the delivery of all network and application analytics at highly granular timescales provides the visibility and control you need to guarantee a high performance WAN. CorvilNet appliances deployed at strategic points continuously track the performance of your live systems, verify compliance to pre-specified service level targets, and enable advanced troubleshooting and optimization capabilities.

Applications include:

Network Application Performance Monitoring

• Real-time applications such as VoIP and Video have strict latency, jitter and loss targets that must be achieved to ensure acceptable end-user performance. Remote desktop and web applications require fast network and server response-times to be used effectively. CorvilNet tracks both network and application performance with unsurpassed granularity, allowing you to quickly determine whether requirements are being met and to determine the root cause of any divergence from expectations.

Full Visibility and Reporting of WAN Usage

• All of CorvilNet measurements are based on monitoring every single application packet and reporting utilization and latency at microsecond timescales. Combined with CorvilNet layer-7 DPI application recognition engine, this provides complete visibility of all traffic and users of the WAN.

Network Service Level Compliance Reporting

• For corporate WANs that have chosen a managed WAN service, CorvilNet can provide an independent measure of the service levels delivered by the WAN. For WANs managed by the corporate IT staff, the network engineering team can utilize CorvilNet to show service level compliance from periods ranging from microseconds up to the last year.

Network Optimization

• Service providers strive to ensure adequate performance across their core network but often view WAN link performance as an issue for their customers to deal with. CorvilNet identifies congestion in the service provider versus WAN link congestion. For WAN link issues, CorvilNet delivers concrete recommendations to ensure the WAN is properly provisioned to deliver the required application service levels.

2. Key Functionality

• Monitor one-way end-to-end latency, jitter and loss for all packets of every application in the network including VoIP and Video
• Report all usage of the WAN with real-time microsecond granularity and historical usage for the past year
• Measure network service quality to report against service level objectives for every class of service in the network. Highlight all service level violations
• Quickly determine if the WAN (versus the application server, firewall, other infrastructure, etc.) is the cause of application performance issues
• Clearly identify service provider issues versus congestion on the WAN link when the WAN is identified as contributing to poor application performance
• Determine the required WAN link speeds and quality of service policy settings based on programmed service level targets. CorvilNet directly computes how much bandwidth your traffic needs to achieve your stated service level objectives
• Monitor application response times versus network response times to determine the cause of end-user perceived performance issues

3. Diagram

4. Key Benefits

• All applications are delivered to the remote users with the required service levels to meet the business needs
• Retain a complete historical record of service level compliance and be alerted whenever targets are violated
• Avoid unnecessary bandwidth upgrades and the associated costs
• Quality of service policies are easily configured without any specialized expertise or offline modelling required
• The root cause of any breaches in service level objectives can be quickly determined
• Locate, analyze and resolve service level problems faster and more reliably using CorvilNet's advanced event troubleshooting features.