Citrix NetScaler SD-WAN 4000/5000 WANOP appliances are high-performance WAN accelerators for busy datacenters. These appliances combines multiple virtual accelerator instances with a single virtual instance of the NetScaler load-balancer, providing the performance of multiple SD-WAN WANOP appliances in a single package.
SD-WAN 4000/5000 WANOP WAN accelerators are the high end of the Citrix NetScaler SD-WAN product line. They are designed to accelerate sites with WAN links with speeds in excess of 155 Mbps, especially busy datacenters that communicate with a large number of branch and regional sites.
A single SD-WAN WANOP 4000/5000 appliance can support WAN speeds of up to 2 Gbps and up to 5000 XenApp/XenDesktop users.
For datacenters needing even more performance, multiple SD-WAN WANOP 4000/5000 appliances can be deployed as a load-balanced array using the WCCP clustering feature.
SD-WAN WANOP 4000/5000 is recommended at the hub of a hub-and-spoke deployment, where smaller appliances are used at the spokes, whenever the link speed or the number of XenApp/XenDesktop users is higher than can be supported by a smaller appliance.
DC to DC Replication
If you require a secondary data center, SD-WAN WANOP 4000/5000 appliances can provide optimization for Data-Center to Data-Center replication. This optimization improves replication time and reduces bandwidth consumption.
For details on how to configure a SD-WAN WANOP appliance for DC-to-DC replication with NetApp SnapMirror, see http://support.citrix.com/article/CTX137181.