KEMP LM-5500 Product Specifications *

Standard

• Server Load Balancing (SLB) for TCP/UDP based protocols
• SSL Acceleration/Offload
• Layer 7 Content Switching
• In-memory HTTP Cache with Compression
• Up to 256 Virtual and 1000 Real Servers
• NAT-based forwarding
• Support for Direct Server Return (DSR) configurations
• Configurable S-NAT support
• VLAN Tagging (802.1Q)

Performance

• Up to 800Mbps per Virtual Service
• Up to 10Gbps (Combined) Throughput
• 100.000 http page GETs/second
• 120.000 L7 concurrent sessions
• 30.000.000 L4 concurrent sessions
• SSL Acceleration Up to 10.000 TPS

SSL Acceleration/Offload Performance & Features

• ASIC-enabled, Hardware SSL Acceleration **
• 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
• Service checking for DNS, FTP, HTTP, IMAP, NNTP, POP3, SMTP, TELNET
• Automatic reconfiguration for defective real server machines
• Active/Hot Standby configurations for High Availability
• Stateful Failover

Web User Interface (WUI)

• Virtual Service Configurations can be edited and tuned on-the-fly
• Real time performance and availability displays
• Preview capability of most recent LoadMaster data
• WUI-based Interactive Help Assistant
• Nicknames of virtual services
• Graceful administrative removal of Real Servers

Administration

• Fully configurable using Web User Interface (WUI)
• Secure, SSH and HTTPS (WUI) remote access for administration
• Easy start and maintenance using wizards
• WUI-based Help Assistant
• Virtual Service Configurations can be edited and tuned on-the-fly
• Real time performance and availability displays
• Graceful Administrative removal of Real Servers
• Console port for local administration
• CISCO-like Command Line Interface (CLI) Option
• Remote syslogd support
• Selective restore of LoadMaster and Virtual Service data
• Support for Connection Draining
• Download software updates for LoadMaster firmware
• 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

Support for Microsoft Terminal Services

• WTS-aware, Layer 7 health checking
• Reconnects users to active/disconnected sessions
• Resource-based Adaptive Balancing
• Integrates with MS Session Directory & Session Broker
• Transparent ITM solution, no change to clients or servers required

L4/L7 Sticky (Persistence) Connection persistency based on

• Source IP address
• SSL Session ID
• URL
• Host Header
• Passive Cookie
• Active Cookie (Insert)
• Cookie Hash
• Cookie Hash Source
• Query Hash
• Port following for persistency options

Security Functionality

• Black List (Access Control List System)
• IP Address Filtering
• Firewall Filtering (everything forbidden except VS’s)
• DDOS Mitigation

Hardware Platform

• Two Intel Quad-Core Xeon CPUs
• 18 GbE Autonegotiating Ports Standard, 24 GbE Ports Optional **
• Full duplex support
• Bootable DOM (No Hard Disks)
• 4096 MB RAM
• Local admin via console/VGA and USB
• Dimensions: 424 x 600 x 88 mm
• Two 460W ATX power supplies (Redundant, Hot-swap)
• Weight ~ 55.12bs (25kg)
• Certifications: CE/FCC Class A
• RoHS Compliant

* Specifications are subject to change without prior notice
** Maximum number of GbE ports supported with SSL ASIC is 18. SSL ASIC is required to achieve up to 10,000 SSL TPS