Configuring high availability mode
T o achieve high availability or to support a greater number accelerated connections, deploy your Exinda Appliances in cluster mode. This configuration allows the your Exinda Appliances to act as a single appliance.
Topology without router redundancy
In this topology, both Exinda Appliances connect to the router via a WANWide Area Network switch. The two appliances are directly connected to each other and each forwards its traffic to the other. Forwarded traffic between Exinda Appliances is not forwarded onto the LANLocal area network. Both appliances report on the data in the same way.
The Exinda Appliances automatically synchronize configuration settings between the two appliances.
NOTE
To configure for high availability so that there is an active path and a standby path:
Your WAN switch (Switch 1) and LAN switch (Switch 2) must support the Spanning Tree Protocol (STP). Configure the STP in Switch 2, so that port 1 (connected to Exinda 1) has higher priority then port 2 (connected to Exinda 2).
If the link at switch 2/port 1 goes down (e.g., Exinda 1 loses power), then the switch will enable switch 2/port 2. Exinda1 should configure NoLink as the bridge failover option, Exinda 2 should configure Bypass.
- Active Path: switch 1/port 1 to switch 2/port 1
- Standby Path: switch 1/port 2 to switch 2/port 2
Capabilities
- Monitoring data available on both Exinda appliances.
- Optimization available via Exinda 1 or Exinda 2.
- Double the acceleration connections capability.
- Redundancy of Exinda appliances.
Installation
- On each Exinda, assign an interface for cluster internal use and an interface for managing the appliance.
- Connect the cluster interfaces on each Exinda with a crossover cable.
- Power up Exinda 1. After 1 minute power up Exinda 2.
- Connect Exinda 1 LAN into switch 2/port 1.
- Connect Exinda 1 WAN into switch 1/port 1.
- Connect Exinda 2 LAN into switch 2/port 2.
- Connect Exinda 2 WAN into switch 1/port 2.
- Connect the management interface of Exinda 1 into switch 2.
- Connect the management interface of Exinda 2 into switch 2.
- On Exinda 1, select "NoLink" for the LAN/WAN bridge failover mode.
- On Exinda 2, select "Bypass" for the LAN/WAN bridge failover mode.
NOTE
Switch2/port1 should have the highest STP priority.