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Load Balancer - Why is the ENTERPRISE R16 restricted?

The R16 is restricted to 4 virtual servers and 4 real servers in order to give us a competitive price point with vendors who use cheaper hardware. The software restriction can be easily lifted on the purchase of a licence key. The cost is simply the difference in purchase price between the R16 and the unrestricted ENTERPRISE.


Load Balancer - Why do I need two load balancers?

Because as well as performance, you want to achieve high-availability.
Maintenance is no longer a nightmare and does not require downtime.

Why do I need 3 of them?

It's better to have a Development or Hot Spare on site than it is to trust a service contract. In fact a lot of companies buy 5 Load Balancers!
(2 x Live, 2 x Test & 1 x dev)

Load Balancer - Why choose a load balancer .org appliance?

Fastest Load balancer in its class and also the cheapest Load Balancer.
Best Value, Quality and Reliability.
We listen to and value our customers.
 
Loadbalancer Enterprise R16

From £1,495
Buy now



Graph demonstrating the huge performance difference
between the R16 and Kemp's LM1500 (click to enlarge)

R16 vs LM1500

This great solution is now available on the hardware platform of your choice, solid state high-performance SuperMicro or 3 years onsite engineer as standard with Dell? The choice is yours...

With Gigabit Nic’s and throughput, the Enterprise R16 gives you awesome power at an incredible price. No other load balancer can offer this performance at this low entry price!

The R16 enables those with a tight budget to get the power and throughput they need to start and then upgrade the licence as they grow. Small, light and powerful: 3 million+ concurrent connections. Ideal for large critical environments. Cluster ready, all the configuration on the master is auto-replicated to the slave.

tick High performance L4 & L7 load balancing
tick Intuitive web based interface
tick Hardware SSL acceleration
tick IP and cookie persistence
tick 64bit processors
tick One-click server maintenance
tick Sensible default settings
tick Quick view server load stats
tick Fully 'cluster' ready
tick Layer 7 content switching
tick Restricted to 16 servers (4*VIPs each with 4*RIPs)

Barracuda Kemp Technologies Coyote Point
"My decision to go with Loadbalancer.org was made easy as soon as I found out that Barracuda don't even support changes to real servers on the fly!" "I cannot believe the huge difference in performance between Kemp and Loadbalancer.org, similarly priced
but leagues apart"
"We replaced a CISCO CSS with a pair of Loadbalancer.org ENTERPRISE MAX units. The change over has resulted in better performance and higher availability for our ecommerce site."

Product description

Outstanding performance
The Loadbalancer.org appliance - ENTERPRISE R16 is the fastest way to scale your web site. Simply place two Ultra-reliable Load balancer .org appliances (in fail-over mode) between your firewall and your web servers. All web requests are handled by the load balancer and dispatched to individual web servers based on the scheduling algorithm you select. If any web server fails a health check it is immediately taken out of the cluster so that your customers are not affected.

Standard
Server Load Balancing (SLB) for TCP/UDP based protocols
SSL Acceleration/Offload
Layer 7 Content Switching
This model is restricted to 16 real servers (4 VIPs * 4 RIPs).
(With licence upgrade) Unlimited Virtual Servers (VIP’s) and Unlimited Real Servers (RIP’s)
High performance Direct Routing, TUN, Single or Dual NIC NAT.
Schedulers: Round Robin, Least Connection, Weighted Least Connection, Weighted Round Robin.
Dynamic Schedulers: Windows & Linux feedback agents, Custom HTTP feedback option.
NAT-based forwarding
Load balance almost ANY protocol i.e. HTTP, HTTPS, SMTP, POP3, IMAP, Terminal Server etc.
Support for Direct Server Return (DSR) configurations
Configurable S-NAT support
VLAN Tagging (802.1Q)

Performance
Up to 1Gbps Throughput
SSL Acceleration/Offload up to 700 TPS
37,000 http page GETs/second
100,000 L7 concurrent sessions
3,000,000 L4 concurrent sessions

SSL
ASIC-enabled, hardware SSL Acceleration (AES, up to 256bit)
PCI-ready SSL Implementation
Support for up to 256 SSL Certificates
Support for Third Party Certificates
Automated SSL Certificate Chaining
SSL Certificate Signing Request (CSR) Generation

Health Checking and High Availability
ICMP health checking of server farm machines
Layer 7 checking for DNS, FTP, HTTP, IMAP, NNTP, POP3, SMTP, TELNET
Automatic reconfiguration for defective real server machines
Automatic replication of static & dynamic configuration from master to slave load balancer.
Stateful Failover

Administration
Secure, SSH, HTTP and HTTPS for remote access administration
Fully configurable using Web User Interface
Easy start and maintenance wizards
WUI-based Help Assistant
Virtual Service Configurations can be edited and tuned on-the-fly
Real time performance and availability displays
Console port for local administration
CISCO-like Command Line Interface (CLI) Option
Remote syslogd support
Selective restore of Enterprise R16 and Virtual Service data
Support for Connection Draining
Software updates for Enterprise R16 available on & off-line
WUI Log Reporting with Tabbed Browser Support
SNMP support for event traps & performance metrics
Diagnostic shell with in-line tcpdump

Scheduling and Balancing Methods
Round Robin
Weighted Round Robin
Least Connection
Weighted Least Connection
Agent-based Adaptive
Chained Failover (Fixed Weighting)
Layer 7 Content Switching

L4/L7 Sticky (Persistence)
Connection persistence based on
- Source IP address
- SSL Session ID
- Passive Cookie
- Active Cookie (Insert)
Port following for persistence options

Security Functionality
Black List (Access Control List system)
IP address filtering
Firewall filtering
(everything forbidden except VS's)
DDOS mitigation

Hardware Platform
2 X 10/100/1000Mbps Auto-negotiation Ethernet ports
Full duplex support at both 10, 100 and 1000 Mbps
100% Solid-State Compact Flash Storage
1GB DDR RAM
Local admin via console/VGA and USB
SuperMicro Hardware Specification
Dell Hardware specification.
CE/FCC Certified, UL Listed, RoHS Compliant


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