Barracuda Link Balancer Link Reliability and Bandwidth Optimization.

Barracuda Link BalancerLink Reliability and Bandwidth Optimization

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Introduction• Provides Internet WAN and link load balancing

– Easily distribute traffic among multiple links to the Internet

– Connect DSL, Cable, T1/T3s to the same or different ISPs

– Plugs into existing network infrastructure

– Supports up to 6 Internet links

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Challenges• Single Internet link (Leased T1/T3)

• Bandwidth is expensive• If ISP link is down, Internet is down• Low service reliability• User productivity loss• Adding Bandwidth without intelligent management is ineffective

corporate network • Requirement

• Aggregate Internet links (cable, xDSL) • Not bound to a single Internet connection• Maximize link throughput• Increase service reliability • Maximize user productivity• Optimize Bandwidth utilization

ISP ISP ISP

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Barracuda Link Balancer FeaturesDeployment

• Web based configuration

• Deployed stand-alone or with existing Firewall

Link balancing• Internet connection balancing

• Internet link health checking and failover

• Link speed assignment/dynamic link speed support

• Inbound Link Balancing and failover through Authoritative DNS

Security• DDOS protection

• Traditional Firewall capabilities like ACL, 1:1 NAT, Port Forwarding

Bandwidth management• Bandwidth Monitoring

• Quality of Service (QoS) control to prioritize application bandwidth

Network services• Site-to-site VPN

• DHCP, DNS caching services

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Barracuda Link Balancer Benefits

AGGREGATESMULTIPLE INTERNET LINKS

IMPLEMENTSPERIMETER SECURITY

ENABLESTRANSPARENTINTERNET LINKFAILOVER

MANAGESBANDWIDTH

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Barracuda Link Balancer Benefits

AGGREGATESMULTIPLE INTERNET LINKS

IMPLEMENTSPERIMETER SECURITY

ENABLESTRANSPARENTINTERNET LINKFAILOVER

MANAGESBANDWIDTH

AGGREGATES MULTIPLE INTERNET LINKS

• Use multiple cable / xDSL in place of T1 / T3

• Link Balancing

• Decrease network down-time

• Save money

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Barracuda Link Balancer Benefits

AGGREGATESMULTIPLE INTERNET LINKS

IMPLEMENTSPERIMETER SECURITY

ENABLESTRANSPARENTINTERNET LINKFAILOVER

MANAGESBANDWIDTH

IMPLEMENTS PERIMETER SECURITY

• Protect against DDOS attacks

• Traditional firewall capabilities

• Site-to-site VPN

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Barracuda Link Balancer Benefits

AGGREGATESMULTIPLE INTERNET LINKS

IMPLEMENTSPERIMETER SECURITY

ENABLESTRANSPARENTINTERNET LINKFAILOVER

MANAGESBANDWIDTH

ENABLES TRANSPARENT INTERNET LINK FAILOVER

• Use multiple service providers

• 100% Internet uptime

• High customer / user satisfaction

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Barracuda Link Balancer Benefits

AGGREGATESMULTIPLE INTERNET LINKS

IMPLEMENTSPERIMETER SECURITY

ENABLESTRANSPARENTINTERNET LINKFAILOVER

MANAGESBANDWIDTH

MANAGES BANDWIDTH

• Prioritize bandwidth usage

• Block or limit bandwidth for specific applications

• Assign links for applications

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• Ethernet Bypass and High Availability options avoid single point of failure

Deployment modes• Replace existing Firewall

– Provide default gateway– Simple firewall, port

forwarding and NAT rules– Local network services,

such as DHCP and DNS

• Transparently with existing firewall

– Pass through VPN tunnels– No need to modify existing

firewall rules– Turns existing edge

network device’s WAN link to High Availability

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Model ComparisonFeature 230 330 430

Internet Link Connections 2 3 7

Link Balancing

Link Health Checking

Link Failover

Traffic Aggregation

Network Traffic Firewall

Local DHCP and DNS

Traffic Monitoring

SNMP

Site-to-Site VPN

Bandwidth Management and QoS

Ethernet Bypass

Clustering/High Availability

Customizable Branding

API

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Immediate Return on InvestmentMonthly prices of DSL vs. Leased lines

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