Overview

Key Features

• Integration with the Junos OS—Integrates security services and networking functions. Provides customizable threat protection, automation, and integration features.

• Scalable architecture—Supports active/active and active/backup deployment scenarios. Provides cost-effective security in a compact, scalable 1-U form factor.

• High performance—Uses hardware-based cryptographic acceleration, including Intel QuickAssist Technology (Intel QAT), to offload CPU-intensive encryption and decryption tasks, which helps deliver high-performance IPsec VPN and reduces the load on the control plane and data plane processors.
• Advanced Threat Prevention (ATP)—Delivers AI-based threat prediction, protects against malware and malicious websites, and provides signature updates in real-time.
• Secure zero-touch provisioning (SZTP)—Delivers a cryptographically signed device ID with Trusted Platform Module (TPM) 2.0 module and supports RFC-compliant SZTP for hardware and software attestation.
• Reliable end-user experience—Unified management offers simplified automation, policy configuration, and traffic prioritization based on applications and user roles.

Positioning

The SRX1600, SRX4120, and SRX4300 Firewalls are the successors to the SRX1500, SRX4100, and SRX4200 Firewalls, delivering enhanced performance, security, and operational efficiency to strengthen the midrange firewall portfolio.

These firewalls offer the following key positioning elements:

• Product Positioning—

  • Provides higher throughput and advanced security capabilities compared with the SRX1500, SRX4100, and SRX4200 platforms.

  • Enables full adoption of Content Security, threat intelligence, and HPE Networking ATP Cloud based threat mitigation.

  • Extends Junos OS networking and automation to support modern operational models and large-scale deployments.

• Performance—Emphasizes leadership in high-density, secure throughput for demanding enterprise and data center deployments.

• Advanced Security Architecture—Utilizes flow-based processing and hardware-assisted acceleration to maintain predictable, scalable security-processing throughput across Layer 4 to Layer 7 services.

• Modern Fabric Integration—Supports EVPN-VXLAN deployments and integrates with automated data center environments.

• Security Effectiveness—Supports threat detection and prevention capabilities through integrated security services.

These firewalls provide increased firewall throughput, higher IPsec VPN capacity, improved SSL proxy scalability, and enhanced processing capacity for advanced security services.

Model Comparison

Here's a comparison of hardware specifications and use cases across the SRX1600, SRX4120, and SRX4300 Firewalls range. For more information, refer to Hardware Compatibility Tool.

Table 1: SRX1600, SRX4120, and SRX4300 Firewalls Model Comparison

Attribute Name	SRX1600	SRX4120	SRX4300
Form Factor	1U (Fixed)	1U (Fixed)	1U (Fixed)
Port Density	16 x 1 GbE + 2 x 1/10/25 GbE + 4 x 1/10 GbE	8 x 1/2.5/5/10 GbE + 8 x 1/10 GbE + 4 x 1/10/25 GbE + 2 x 40/100 GbE	8 x 1/2.5/5/10 GbE + 8 x 1/10 GbE + 4 x 1/10/25 GbE + 6 x 40/100 GbE
Throughput	12 Gbps (IMIX) and 24 Gbps (1518B)	28 Gbps (IMIX) and 39 Gbps (1518B)	70 Gbps (IMIX) and 98 Gbps (1518B)
Use Cases	Data center edge/ Enterprise hub or VPN concentrator/Data center core	Data center edge/ Enterprise hub or VPN concentrator/Data center core	Data center edge/ Enterprise hub or VPN concentrator/Data center core
Port Types	RJ-45/SFP/SFP+/SFP28	RJ-45/SFP/SFP+/ SFP28/QSFP/QSFP28	RJ-45/SFP/SFP+/SFP28/QSFP/QSFP28
Ideal Use Case	Robust security and threat detection	Robust security and threat detection	Robust security and threat detection