PALO ALTO NETWORKS: Technology Partner Solution Brief Scaling Next-Generation Firewalls with Citrix NetScaler SOLUTION OVERVIEW Citrix NetScaler service and application delivery solutions are deployed in thousands of networks around the globe to optimize and control the delivery of enterprise and cloud services. In this deployment guide, Citrix NetScaler is used to increase the throughput and redundancy of Palo Alto Networks ® next- generation firewalls in networks that require more than 20Gbps firewall throughput. This deployment leverages a typical “firewall load-balancing” sandwich architecture, where traffic is directed through load balancers in both inbound and outbound directions to a series of firewalls. While testing was completed with a mid-range Citrix NetScaler ADC with

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