Overview

The VRRP provides an automatic assignment of IP routers, using virtual routers as proxies for physical routers.

A virtual router with a static IP address acts as a gateway between the router and the Exinda appliances. The VRRP receives the traffic requests and distributes them to the appliances connected to it, providing more excellent reliability and even traffic request distribution.

To increase fault-tolerance, you can configure the router to monitor the SLA tracking. The IP SLA configurations act as a heartbeat mechanism between the router and the applicable SLA hosts.

VRRP with PBR and IP SLA Tracking

This article provides information on how the VRRP requests are processed with PBR and the IP SLA tracking.

Information

• The client computer requests access to a location on the Internet.
• The request is sent to the router, where the source, destination, and service levels for the requested application are analyzed and compared to the policy configured on the router.
• Based on the results of the analysis, the request is either:
• Sent to the switch, which evenly distributes the traffic between the connected Exinda appliances, and then back through the router to the requested destination.
  
  (OR)
• Sent directly to the requested destination.

Limitations

This configuration is only supported on Cisco routers and the following release:

Cisco IOS release 12.3(14)T, 12.2(33)SXH, and later releases

• Configuration instructions can be found here: PBR Support for Multiple Tracking Options
  
  
• The Cisco IOS Software Releases 12.4 T has been retired and is no longer supported.

Additional Information

For more information about VRRP with PBR and VLANs with IP SLA tracking, see the topics listed below:

• Configuring a Router for VRRP With PBR and IP SLA Tracking
• Configuring an Exinda Appliance for VRRP With PBR and IP SLA Tracking Using Exinda Web UI
• Configuring an Exinda Appliance for VRRP With PBR and IP SLA Tracking Using CLI