1. Barracuda Load Balancer Server Availability and Scalability

2. Barracuda Load Balancer Full-featured server load balancing solution –Reliable, solid-state hardware –Simple setup via intuitive Web Interface –Integrated Intrusion Prevention System –Advanced Feature Support Layer 7 Content Routing Windows Remote Desktop Services integration –Aggressive pricing

3. Scenarios Internet Corporate Firewall SwitchServer High traffic Web sites Any application needing High Availability Applications on Windows Remote Desktop Services Customers with multiple Barracuda Spam Firewalls

4. Scaling the server infrastructure Internet Service 216.129.105.22 Corporate Firewall SwitchServer Servers SwitchBarracuda Load Balancer –Distributes traffic to multiple servers –Provides High Availability –Layer 7 content routing –Easy scalability –Server health and load checking

5. Barracuda Load Balancer Benefits EASY TO MANAGE SCALE UP AND SPEED UP HIGH AVAILABILITY AFFORDABLE YET COMPREHENSIVE

6. Barracuda Load Balancer Benefits EASY TO MANAGE SCALE UP AND SPEED UP HIGH AVAILABILITY AFFORDABLE YET COMPREHENSIVE EASY TO MANAGE Quick set-up Automated discovery of servers Central management of SSL certificates Automated IPS updates

7. Barracuda Load Balancer Benefits EASY TO MANAGE SCALE UP AND SPEED UP HIGH AVAILABILITY AFFORDABLE YET COMPREHENSIVE SCALE AND SPEED UP APPLICATION DELIVERY Scale applications at layer 4 through layer 7 Distributes traffic across multiple servers Web servers Windows Remote Desktop Services Email servers Office Communication Services Others

8. Barracuda Load Balancer Benefits EASY TO MANAGE SCALE UP AND SPEED UP HIGH AVAILABILITY AFFORDABLE YET COMPREHENSIVE HIGH AVAILABILITY High availability clustering Server health checking (tcp port, ping, SNMP query, http and https URLs) Last resort server

9. Barracuda Load Balancer Benefits EASY TO MANAGE SCALE UP AND SPEED UP HIGH AVAILABILITY AFFORDABLE YET COMPREHENSIVE AFFORDABLE YET COMPREHENSIVE No per user / per server license fees Handles multiple services simultaneously

10. Deployment Options Route Path –Recommended for most applications –Barracuda Load Balancer is default gateway for real servers Bridge Path –Useful when real servers should keep same IP addresses –Virtual IP’s must be on physically separate network from real servers Direct Server Return –High bandwidth applications – real servers respond directly –Requires installation of loopback adapters on real servers

11. Model Comparison

12. Summary Enhance scalability and performance of existing applications Add redundancy and health checking Works with existing Web, RDP, or any IP application Easy to deploy Economical