Topology: Load balancing and fail-over with multiple Exinda appliances

Given a load balancing topology (shown in the image on the left), Exinda appliances can be deployed within that topology. Both links in this topology act as fail-over and load balancing.

In this topology, both Exinda appliances are connected to both routers. The two appliances are directly connected to each other and forwards its traffic to the other appliance. Note that the traffic that is received from the other Exinda appliance will not be forwarded onto the LAN. Both appliances report on the data in the same way.

The Exinda appliances also automatically synchronize configuration settings between the two appliances.

Platforms that support this topology include the 4060¹, 4061¹, 5000, 6010, 6060¹, 7000 and 10060¹.

¹ Network expansion modules are required.

Capabilities

• Monitoring of both links.
• Optimization of both links.
• Redundancy of Exinda appliances.

Installation

1. On each Exinda, assign an interface for cluster internal use and an interface for managing the appliance.
2. Connect the cluster interfaces on each Exinda with a crossover cable.
3. Power up Exinda 1. After one minute, power up Exinda 2.
4. Connect Exinda 1 LAN2 into switch 2/port 2.
5. Connect Exinda 1 WAN2 into router 1/port 2.
6. Connect Exinda 1 LAN1 into switch 1/port 1.
7. Connect Exinda 1 WAN1 into router 1/port 2.
8. Connect Exinda 2 LAN2 into switch 2/port 1.
9. Connect Exinda 2 WAN2 into router 2/port 1.
10. Connect Exinda 2 LAN1 into switch 1/port 2.
11. Connect Exinda 2 WAN1 into router 2/port 2.
12. Connect Exinda 1 MGMT into switch 1.
13. Connect Exinda 2 MGMT into switch 2.