Configuration Sequence

The following sequence of steps presents an abbreviated list of things you need to do to get a newly installed CNA system configured and ready to optimize traffic between your web servers and Internet end users. (In order to optimize VPN traffic, you will also need to configure the CNA system and your edge routers as shown in Chapter 3: VPN Integration of the CNA Advanced Monitoring Guide.)

The following list is derived from the steps that are explained in detail in Chapter 3: Configuring a New CNA Server Device of this book and Chapter 2: Configuring Your Routers of the CNA Advanced Monitoring Guide.

See the sections listed in parentheses for more detailed information about individual steps.

NOTE: This manual addresses the integration of a CNA system into a generic network environment. This network has been intentionally made simple so that the documentation can focus on the steps required to make the CNA system operational. In an actual, real-world deployment, there will be numerous departures from the simplified network presented here, requiring different specific configurations. For example, the steps itemized below call for GRE tunnels between the measurement ports and Cisco edge routers. The actual system requirement is for some form of dedicated link, either virtual or physical, not necessarily a GRE tunnel, and the system will work with brands other than Cisco.

To set up a new CNA system and make it operational, do the following:

1. Install the chassis into a rack. (See the companion document Avaya CNA Server Installation Guide for details.)
2. Connect a terminal to the console connector on the management module. (See the companion document Avaya CNA Server Installation Guide for details.)
3. Physically connect the ethernet ports to the network.
4. Boot your CNA system.
5. Using the console port to connect a terminal to the 5000-series Management module or the 3300-model base unit, configure the FastEthernet interfaces.
6. Configure a default static route for the CNA system’s engine.
7. Configure the engine to recognize your service provider access links.
8. Configure BGP peering with the CNA engine.
9. Associate USTAT modules or 3000-series measurement ports with service provider access links and virtual IP addresses (VIPs), and configure GRE (Generic Routing Encapsulation) tunnels.
10. On your edge routers, configure GRE tunnel interfaces.
11. On your edge routers, configure policy-routing route maps for the GRE tunnels.
12. On your edge routers, configure the routing between your edge routers and the CNA system.
13. On your edge routers, configure IBGP peerings with the CNA system.
14. On your edge routers, configure the CNA system as a route reflector client.
15. To obtain network traffic measurements through passive user tests, place HTML image tags in your web pages and configure your DNS server to direct requests for the image to your USTAT modules.
16. To obtain network traffic measurements from targeted endpoints are scheduled intervals, configure active probes on the CNA system.
17. On the CNA system, enable the decision-maker process.