F5-BIG-LTM-R5900 Link Controller

F5-BIG-LC-R5900: Extreme Multitasking Performance and Advanced Routing Logic

As the R5000 series flagship, the F5-BIG-LC-R5900 maximizes the platform’s hardware potential. Its key advantage over the Big IP LC-R5800: unmatched CPU resources — 26 dedicated vCPUs for tenancy workloads. This enables exceptional parallel processing, delivering smooth, ultra-low-latency high-density multi-tenant virtualization and complex outbound routing. Ideal for large enterprises, cloud providers, and MSPs.

F5-BIG-LC-R5900 Features

100Gbps Aggregated Link Throughput
It delivers up to 100Gbps of total throughput — the highest in the R5000 series. It seamlessly manages and aggregates multiple 10G and 40G uplinks, providing your data center with a robust and high-capacity internet egress gateway.

1.8 Million Connections per Second
F5-BIG-LC-R5900 handles 1.8 million new connections/second. As an intelligent DNS server for global inbound traffic, this performance is critical for large portals, CDN edge nodes, and online platforms—ensuring ultra-fast DNS resolution and precise user redirection.

Unprecedented 26-Core Tenancy Processing
If your organization operates with thousands of employees and relies on thousands of application-specific, department-based, or destination-aware outbound policies, the LC-R5900 is the only model in its class that guarantees these policies are enforced with minimum latency and maximum efficiency.

Second-Level Link Health Monitoring
The F5-BIG-LC-R5900 provides carrier-grade link availability. Its built-in second-level link health monitoring operates 24/7 to ensure any ISP failure is detected instantly and traffic is automatically rerouted to healthy paths. This guarantees uninterrupted internet connectivity for your mission-critical services.

F5-BIG-LC-R5900 Data Sheet

• L4/L7 Throughput: 100 Gbps / 95 Gbps
• Max L4 Concurrent Connections: 100M
• L4 Connections Per Second: 1,800,000
• Memory: 128 GB DDR4
• Primary Ports: 2x 100G/40G QSFP+, 8x 25G/10G SFP+
• Hardware Redundancy: Optional Dual PSU, Single Drive

Q1: Why choose LC-R5900, notLC-R5800?
A: You pick the LC-R5900 for one thing: raw parallel muscle.
26 vCPUs—almost 50 % more than the R5800’s 18—let it juggle thousands of complex routing rules or dense virtual slices without breaking stride.

Q2: Are the hardware platforms of LC-R5900 and LTM-R5900 the same?
A: Yes, they share the identical R5900 hardware. The difference is in software licensing: LC-R5900 enables Link Controller (LC) for internet link management, while LTM-R5900 activates Local Traffic Manager (LTM) for internal server management.

Q3: Can the LC-R5900 manage two 40G Internet leased lines?
A: Absolutely. With 100Gbps total throughput and two 100G/40G ports, it easily handles two 40G lines in active-standby or load-balancing mode—with ample performance headroom.