Citrix SD-WAN Platforms
No WAN traic enters or leaves the accelerators except as configured in the NetScaler instance. When
the appliance is first used, the Provisioning Wizard sets up an initial configuration that provides com-
munication and load balancing between the NetScaler instance and the accelerators.
The management service is the management configuration interface for the appliance, and provides
access to key operating and monitoring elements of the appliance. The management service displays
SD-WAN parameters as if they were from a single accelerator, and all changes made through this in-
terface are applied to all the accelerator instances.
The Xen hypervisor hosts all the virtual machines. The hypervisor is not user-configurable and should
not be accessed except at the request of Citrix.
Internal and External Networks
The external network interfaces are divided into two categories: traic interfaces and management
interfaces.
Traic Interfaces—The traic interfaces include all the network interfaces except ports 0/1 and 0/2,
which are used only for management. Acceleration takes place only on the traic interfaces.
Note: You must keep the traic interfaces isolated from the management interface to prevent
ARP flapping and other problems. This isolation can be achieved physically or by tagging man-
agement interface and traic interface packets with dierent VLANs.
Management subnet—The virtual machines connect directly to the external management subnet,
with dierent IP addresses for the management service, NetScaler instance, and XenServer.
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