Out-of-band and High Availability (PBR/VRRP) Mode

In this use case, there are multiple Exinda Virtual Appliances set up for out-of-band mode and configured for High Availability. PBR is the protocol used for redirection while the appliances act as VRRPVirtual Router Redundancy Protocol nodes. One Exinda acts as the Master node, receiving all redirected traffic from the WANWide Area Network router, and all remaining Exinda Virtual Appliances act as Backup nodes in case the Master fails.

This deployment would be typical for customers who are choosing to redirect a percentage of their traffic for acceleration and traffic shaping through the Exinda virtual appliances.

To configure PBR/VRRP on the Exinda Virtual Appliance, see VRRP with PBR.

This configuration would work in either a branch office with virtual infrastructure, or in a data center where the application and local user traffic accessing the WAN is redirected to the Exinda virtual appliance for Diagnostics, Shaping, and Acceleration.

Scenario

• Branch users access virtualized, local services (print, DHCPDynamic Host Configuration Protocol, Active Directory, etc.).
• One physical NIC interface is dedicated for management of the virtual machines and hypervisor.
• One physical NIC interface is configured on the hypervisor for LANLocal area network access, and has a routed connection to the WAN router.
• One physical NIC interface is configured and mapped to the virtual switch that is connected to the virtual AUX ports on all the Exinda Virtual Appliances.
• User access from the branch office to the Data Center applications has two paths:

• Path one is directly to the WAN router, with no traffic shaping or acceleration.
• Path two is through the re-directed path invoked by the router (using PBR) to the Exinda virtual appliances. The traffic is received by the Exinda configured as the VRRP Master. In case of acceleration, the Exinda Virtual Appliances have the capability to share load, this happens automatically and requires no user intervention.

• Traffic on the Data Center side has the same path as the branch side. Traffic that is selected to be optimized and accelerated is redirected to the Exinda Virtual Appliance through PBR on the WAN router.

Use Case

Use-case for Out-of-band and High Availability (PBR/VRRP) Mode

In this diagram:

• The virtual LAN with application servers (APP1 and APP2) are configured in the hypervisor on SW1 and mapped to NIC1. They have a direct path the WAN router.
• For simplicity, both Exinda Virtual Appliances installed in the same host hypervisor. However, it is possible to install Exinda Virtual Appliances on separate hypervisors to achieve physical high availability
• The host has three NICs; NIC 0 is dedicated for management of the system.
• NIC 1 is dedicated to all virtual application workloads hosted on the hypervisor
• All virtual application workloads are configured in the hypervisor to SW1.
• The Exinda Virtual Appliances are configured on SW2 virtual switch and are mapped to the NIC2 interface.
• The NIC2 interface has a direct connection to the WAN router, which configured for PBR redirection. For more information refer to Deployment options.
• Exinda Virtual Appliance firmware version = 7.4.2.