
F5-BIG-LTM-R5600 Local Traffic Manager
- 60 K SSL TPS — twice the power, built for massive encryption.
- 12-core enterprise CPU crushes critical workloads.
- 8-tenant vCMP slices for secure consolidation.
- 128 GB RAM handles huge connection tables.
- 100 G/40 G ports plug straight into your core.
- Premium ADC for enterprises.
- Key Features
- Specification
- FAQ
F5-BIG-LTM-R5600: Premium ADC Platform for Mid-to-large Enterprises
The F5 R5600 is a significant milestone in the Rseries product line and a strategic starting point for enterprise IT architecture transitioning from the 25G to the 100G era.
Compared with the R2000 and R4000 series, it represents a qualitative leap. Its most critical upgrade is the introduction of native 100G/40G high-speed core ports for the first time, along with double the memory capacity at 128GB. The F5-BIG-LTM-R5600 scales to the heart of the network, delivering future-ready performance for finance, big e-commerce, and manufacturing.
Feature Highlights
60K TPS SSL Processing Capacity
The F5-BIG-LTM-R5600 delivers powerful encryption processing, handling up to 60,000 SSL handshakes per second, doubling performance. It excels as a secure gateway managing massive encrypted traffic or providing SSL offloading for large SaaS platforms, ensuring data security and application performance.
Enterprise-grade 16-core Business Processing
Equipped with a robust 16-core enterprise processor, 12 vCPU cores are dedicated to business processing. This maintains efficiency and stability when executing complex iRules traffic policies or defending against application-layer attacks, making it an ideal performance platform for critical enterprise services.
High-density Multi-tenant Virtualization
Thanks to its strong multi-core architecture and massive memory, the R5600 supports up to 8 vCMP tenants, making it a powerful IT resource integration platform. It allows consolidation of multiple legacy ADCs on one device or provides isolated virtual ADC services for different departments or applications, significantly lowering TCO.
128GB Onboard High-capacity Memory
Its memory capacity directly doubles the R4000 series, reaching 128GB. This massive memory supports up to 75 million concurrent connections and reserves ample space for running memory-intensive complex policies, protecting your technology investment.
Core-network-ready 100G Interfaces
A hallmark feature of the F5-BIG-LTM-R5600 is the standard inclusion of two 100G/40G QSFP+ high-speed optical ports, which can directly connect to data center core or aggregation layer switches. This greatly enhances bandwidth and simplifies network topology, marking a strategic step in your network architecture’s evolution to higher speeds.
Technical Specifications
- L4/L7 Throughput: 60 Gbps / 60 Gbps
- Max L4 Concurrent Connections: 75M
- SSL TPS (2K Keys): 60,000
- Memory: 128 GB DDR4
- Primary Ports: 2x 100G/40G QSFP+, 8x 25G/10G SFP+
- Hardware Redundancy: Optional Dual PSU, Single Drive
Traffic Processing and Acceleration
Intelligent Traffic Processing:
- L7 requests per second: 2.5M
- L4 connections per second: 1M
- L4 HTTP requests per second: 18M Maximum
- L4 concurrent connections: 75M
- Throughput: 95 Gbps/60 Gbps L4/L7
Hardware Offload SSL/TLS:
- 60K TPS (2K SSL TPS)
- 30K TPS (ECDHE-ECDSA P-256 TPS)
- 30K TPS (ECDHE P-256-RSA 2k TPS)
- 35 Gbps bulk encryption
System Architecture & Logical Design
- Hardware Compression: 35 Gbps
- Software Architecture: 64-bit TMOS; 64-bit F5OS
- Multi-Tenancy: 8 Tenant
- Processor: 8-Core Intel® Atom® processor(12 CPUs available for Tenancy)
- Memory: 128GB DDR4
- Hard Drive: 1TB M.2 SSD
Network Interfaces & Connectivity
- Management Ports:
- 1x 1000BASE-T,
- 1x USB 3.0,
- 1x serial console
- 100/40 Gigabit Fiber Ports: 2× 100 G/40 G QSFP+/QSFP28 ports
- 25/10 Gigabit Fiber Ports: 8 × 25 G/10 G/10 G SFP+/SFP28
Power Supply & Energy Consumption Management
Power Supply:
- 1 x 650 W 100-240 VAC (+/- 10%) AUTO Switching Platinum,
- Dual DC PSU Optional
Typical Consumption: 425W (single power supply, 48V DC or 110V AC input)
Input Voltage / Typical Heat generated:
- Single Power supply
- 110 VAC input: 1455 BTU/hour
- 230 VAC input: 1420 BTU/hour
Physical Specifications & Environmental Adaptation
Dimensions: H: 1.72 inches (4.37 cm) x W: 17.1 inches (44.2cm) x D: 30.6 inches (77.72 cm). 1U industry standard rack-mount chassis
Weight: 36.0 pounds (916.33kg) with two power supply units (PSUs) (per unit)
Operating Temperature: 32 to 104°F (0 to 40°C)
Operational Relative Humidity: 5% to 85% (40 C) non-condensing
Safety Certification & Compliance
Hardware Certification Model: r2000
Safety Agency Approval:
- ANSI/UL 60950-1-2014
- CSA 60950-1-07, including A1:2011+A2:2014 IEC 60950-1:2005,
- A1:2009+A2:2013
- EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013
- IEC 62368-1:2014 (Second Edition) EN 62368-1:2014+A11:2017
- CSA C22.2 No. 62368-1-14, UL 62368-1, 2nd edition
Certifications / Susceptibility Standards:
- FCC Class A (Part 15), lc Class A;
- VcCl Class AEN 55032:2012/AC:2013 Class A
- EN 55035:2017
- EN 300 386 V1.6.1 (2012)
- NEBS Level 3 compllant
Q1:Why choose F5-BIG-LTM-R5600 over LTM-R4800?
If your data center core network is already or soon planning to upgrade to 40G/100G, you must choose the F5-BIG-LTM-R5600 or a higher model to avoid the ADC becoming a network bottleneck.
Q2: How to choose between LTM-R5600 and LTM-R5800?
Both share the same physical platform, but the F5-BIG-LTM-R5600 is the cost-effective entry-level option. If you need 100G interfaces and 128GB memory but can suffice with 60G throughput, the R5600 is ideal. If you need stronger processing power (95G throughput, 18 vCPU cores) on top of that, you should choose the R5800.
Q3: What specific benefits does 128GB memory bring to LTM applications?
The large memory provides three main benefits:
- Supports more concurrent connections.
- Can run longer and more complex iRules scripts without affecting performance.
- When running multiple vCMP virtual ADC instances, it allocates more abundant resources to each instance.

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