Intel 7190 manual Procedure

C H A P T E R 4 Intel® NetStructure™ 7190 Multi-Site Traffic Director User Guide

•Different Site Combinations for Each Hostname

•Different Balancing Methods for Each Hostname

•Associating Services with Hostnames

Procedure

Step 1. Create agents for each of the sites brokered by Intel load balancers and associate their services.

For this example, there is one existing site used for only one division’s Web site. This site enforces the fact that not all sites have to be identical.

The 7190-to-site association is also done at this time since at least one Web site uses Flash Response Mode. The load balancers are used as the backup Flash source. In this scenario of four sites only two 7190s are actually required. If Flash Response Mode is used the load balancers can broadcast the DNS responses under the direction of the 7190s, but using the load balancers may have an impact on performance, so it is recommended that a 7190 be placed at each site and the site load balancer designated as a backup Flash source. This prevents the 7190 from being a single point source of failure without impacting the performance of the load balancer except upon a 7190 failure.

Since redundancy is a key issue, all of the load balancers are deployed in pairs with serial failover enabled. This means that each load balancer actually has three IP addresses. The IP address that is used to communicate with the 7190 is the Online Outside IP Address (management address). This makes the failure of a load balancer transparent to the 7190 except for a momentary loss of connection that provides the load balancer metrics.

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