About CNA

The Avaya Converged Network Analyzer (CNA) system is a network optimization solution that can be configured to do any or all of the following:

• improve the Internet experience of your customers, by speeding the return of packets being downloaded from your web servers
• improve the Internet experience of your local network users, by optimizing the routes used to deliver their requests to external web sites
• improve the speed and reliability of your Internet VPN connections
• optimize your cost of service, by distributing traffic load among your service providers according to individual ISPs’ billing rates (see polling usage interval in the CNA Command Reference Guide) and traffic thresholds

The CNA system bases its selection of service provider (SP) for a given prefix on its analysis of measured traffic, not on statistical assumptions (load balancing) or the predefined rules of the Border Gateway Protocol (BGP).

When a currently selected service provider link is observed to be experiencing significant delays that degrade its ability to deliver packets to a specific prefix, the CNA system can--if you allow it--update your network routing tables so that your routers will use a different service provider for traffic to that prefix.

You can configure the CNA system to favor the lowest-cost or the least utilized service provider.

You can use the system in report only mode, in which traffic is measured and analyzed but routes are not actually asserted to your edge routers.