Juniper SRX Series Services Gateways

Next-Generation Anti-Threat Firewall


High-performance security with advanced, integrated threat intelligence, delivered on the industry's most scalable and resilient platform. SRX Series gateways set new benchmarks with 100GbE interfaces and feature Express Path technology, which enables up to 1 Tbps performance for the data center.





Security for any size data center and enterprise edge


Offers a broad range of options—from all-in-one, integrated physical and virtual security networking devices to highly scalable, chassis-based data center solutions—that can defend enterprise data centers and service providers of any size.


Comprehensive threat protection


Provides advanced, next-generation defense, with a comprehensive suite of layered security services. All SRX Series gateways are built for resiliency, scalability, and availability to secure your data center or enterprise edge against the broadest spectrum of threats.


Maximum performance and scale


Supports fast, secure, and highly available data center and enterprise edge operations, with unmatched performance and scalability, massive session volumes, and flexible large-scale connectivity, with ultra-low latency performance of up to 1 Tbps.


Carrier-grade reliability


Delivers continuous uptime through in-service hardware and software upgrades, redundant components, and carrier-class hardware for resiliency. The high-end SRX Series gateways deliver six-nines reliability for nonstop business continuity and application availability.


Superior security value


Provides outstanding value for high-speed, highly effective security services—even with multiple services enabled. The system’s flexible, modular approach protects your investment by scaling for future network growth.

SRX240 SRX550 SRX650 SRX1400
Junos OS Software version tested Junos OS 11.4R5 Junos OS 12.1 Junos OS 11.4R5 Junos OS 12.1X44
Firewall performance (max) 1.8 Gbps 5.5 Gbps 7 Gbps 10 Gbps
IPS performance (NSS 4.2.1) 230 Mbps 800 Mbps 1 Gbps 3 Gbps
AES256+SHA-1 / 3DES+SHA-1 VPN performance 300 Mbps 1.0 Gbps 1.5 Gbps 4 Gbps
Maximum concurrent sessions 256,000 375,000 512,000 1.5 million
New sessions/second (sustained, TCP, 3-way) 8,500 27,000 35,000 70,000
Maximum security policies 4,096 7,256 8,192 40,000
Maximum security intelligence data feed entries in firewall rules database 600,000 IPs and 50,000 URLs 600,000 IPs and 50,000 URLs 600,000 IPs and 50,000 URLs Up to 1 million IP addresses; separate allocation (capacity) for URLs



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