Barracuda Load Balancer
Server Availability and Scalability
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
Scenarios
Internet
Corporate Firewall
Switch Server
• High traffic Web sites• Any application needing High Availability• Applications on Windows Remote Desktop Services• Customers with multiple Barracuda Spam Firewalls
Scaling the server infrastructure
Internet
Service
216.129.105.22
Corporate Firewall
Switch Server
Servers
SwitchBarracuda Load
Balancer
– Distributes traffic to multiple servers– Provides High Availability– Layer 7 content routing– Easy scalability– Server health and load checking
Barracuda Load Balancer Benefits
EASYTO MANAGE
SCALE UPANDSPEED UP
HIGH AVAILABILITY
AFFORDABLEYETCOMPREHENSIVE
Barracuda Load Balancer Benefits
EASYTO MANAGE
SCALE UPANDSPEED UP
HIGH AVAILABILITY
AFFORDABLEYETCOMPREHENSIVE
EASY TO MANAGE
• Quick set-up
• Automated discovery of servers
• Central management of SSL certificates
• Automated IPS updates
Barracuda Load Balancer Benefits
EASYTO MANAGE
SCALE UPANDSPEED UP
HIGH AVAILABILITY
AFFORDABLEYETCOMPREHENSIVE
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
Barracuda Load Balancer Benefits
EASYTO MANAGE
SCALE UPANDSPEED UP
HIGH AVAILABILITY
AFFORDABLEYETCOMPREHENSIVE
HIGH AVAILABILITY
• High availability clustering
• Server health checking (tcp port, ping, SNMP query, http and https URLs)
• Last resort server
Barracuda Load Balancer Benefits
EASYTO MANAGE
SCALE UPANDSPEED UP
HIGH AVAILABILITY
AFFORDABLEYETCOMPREHENSIVE
AFFORDABLE YET COMPREHENSIVE
• No per user / per server license fees
• Handles multiple services simultaneously
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
Model Comparison
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
