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Authorised UK Reseller

Juniper Networks — SRX Firewalls Built on Junos

Servnet is a UK Juniper Networks reseller, supplying the complete SRX Series — from the SRX300 branch firewall to the SRX5800 hyperscale chassis — with expert pre-sales advice, competitive UK pricing, and fast delivery.

25+
Years in Networking
30K+
Enterprise Customers
130+
Countries Served
1 Tbps+
Max SRX Throughput
512M
Max SRX Sessions
11
SRX Models Available
About Juniper Networks

Building the World's Most Intelligent Networks Since 1996

Founded in 1996 by Pradeep Sindhu, Scott Kriens, and Bjorn Liencres in Sunnyvale, California, Juniper Networks was built around a single ambitious goal: to create the world's fastest internet routing platform. The company's first product, the M40 backbone router, outperformed every competitor when it launched in 1998 — and Juniper has been a tier-one networking vendor ever since.

Today, Juniper Networks is one of the world's three largest networking vendors, with hardware and software deployed in over 130 countries by global carriers, financial institutions, governments, cloud providers, and enterprises. Juniper's MX Series routers carry a significant share of the world's internet traffic, while the EX and QFX switch families are widely deployed in enterprise and cloud data centres.

The SRX Series Services Gateways represent Juniper's NGFW and SD-WAN portfolio — combining the routing intelligence of Junos OS with stateful firewall, IPS, and application security services in a single platform family scaling from branch to hyperscale.

Juniper Networks
1996
Founded by Pradeep Sindhu in Sunnyvale, California
1998
M40 backbone router ships — outperforming all competitors at launch
2000
IPO on NASDAQ (JNPR); MX Series deployed by major global carriers
2004
Junos OS standardised across all Juniper platforms
2006
SRX Series launched — combining routing and security in Junos
2014
Contrail SDN launched; cloud-native networking architecture introduced
2019
Mist AI acquisition — AI-driven wireless and operations platform
2024
Attempted Hewlett Packard Enterprise acquisition; Juniper continues as independent entity
Product Portfolio

The SRX Series & Junos Ecosystem

SRX firewalls are part of a broader Junos-powered portfolio — share the same OS with MX routers, EX switches, and QFX data-centre platforms.

🌿Explore →
SRX Branch Series
SRX300, SRX320, SRX340, and SRX345 — compact branch firewalls combining stateful inspection, IPS, SD-WAN, and IPSec VPN for offices from 5 to 200 users.
🏢Explore →
SRX Enterprise Edge
SRX1500, SRX1600, SRX4200, and SRX4600 — high-throughput enterprise firewalls with 10GE–100GE connectivity for campus core and data-centre edge deployments.
🏗️Explore →
SRX5000 Chassis
SRX5400, SRX5600, and SRX5800 — modular chassis firewalls from 280 Gbps to 2 Tbps for hyperscale data centres, internet exchange points, and service providers.
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SD-WAN
Juniper SD-WAN is built directly into Junos OS on every SRX platform — providing application-aware routing, SLA-based path selection, and automatic WAN failover.
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Security Services
Juniper AppSecure, IPS, UTM, SSL Proxy, and User Firewall extend SRX firewalls into full NGFW platforms with application visibility and user-identity-based control.
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Security Director
Centralised policy management, analytics, and threat response across all SRX platforms — from branch to hyperscale — using a single Security Director console.
Juniper AI-native networking portfolio — Mist + EX, QFX5000/10000, MX Series, SRX firewalls, Session Smart Router and Apstra automation
Why Juniper

Six Reasons Organisations Choose Juniper SRX

🟢
Junos OS — One OS Everywhere
Every Juniper router, switch, and SRX firewall runs the same Junos OS — a single CLI, consistent feature set, and unified management tooling from the smallest branch to the largest data centre. Engineers trained on one Juniper product are immediately productive on any other.
🔀
Native SD-WAN, No Extra Cost
SD-WAN capabilities are built directly into Junos OS on all SRX platforms — no separate SD-WAN appliance or licence required. Application-aware routing, SLA monitoring, and automatic failover come standard on every SRX.
🌐
Combined Firewall + Router
SRX firewalls support full BGP, OSPF, IS-IS, MPLS, and L2/L3 VPN routing alongside firewall and IPS services — eliminating the need for separate routing and security appliances at every WAN edge point.
⚡
Consistent Scale from Branch to Tbps
A single SRX platform family covers branch offices (1 Gbps SRX300) through to hyperscale data centres (2 Tbps SRX5800) — using the same OS, the same management, and shared line cards at the chassis tier.
🧠
Juniper ATP Cloud Integration
Every SRX platform integrates with Juniper Advanced Threat Prevention (ATP) Cloud — providing AI-powered malware detection, encrypted traffic analysis, and C&C blocking updated in real time by Juniper's global threat intelligence.
🤖
Automation-First Architecture
Full NETCONF/YANG, gRPC streaming telemetry, Ansible, Terraform, and PyEZ support on all SRX platforms — enabling infrastructure-as-code management, zero-touch provisioning, and GitOps-driven firewall policy management.
SRX Range

One Family. Every Scale of Deployment.

All SRX models run Junos OS, share the same CLI and management tooling, and support the same security service subscriptions — making the SRX Series uniquely scalable from a 30-user branch office to a Tbps hyperscale data centre.

Entry / Branch
Compact 1U appliances for branch offices. 1–5 Gbps firewall, SD-WAN, IPSec VPN, and IPS. Supports Mini-PIM WAN expansion modules.
Mid-Range / Enterprise Edge
Enterprise 1–2U appliances with 10GE–100GE connectivity. 10–100 Gbps firewall throughput for campus core and data-centre edge.
High-End / Data Centre
Modular chassis platforms from 3U to 11U. 280 Gbps to 2 Tbps firewall for data centres, internet exchanges, and service providers.
View All 14 SRX Products →
Junos Ecosystem

One OS. Every Layer of the Network.

Junos OS powers every Juniper product — SRX firewalls, MX routers, EX switches, QFX data-centre fabric, and Mist AI wireless. Consistent CLI, consistent automation, consistent management from edge to cloud.

🔥
SRX Series
NGFW & SD-WAN
🌐
MX Series
Edge Routing
🔌
EX Series
Enterprise Switching
🏗️
QFX Series
DC Switching
📡
ACX Series
Access Routing
⚡
PTX Series
Packet Transport
🧠
ATP Cloud
AI Threat Intel
🖥️
Security Director
Central Management
☁️
Contrail
Cloud Networking
🤖
Apstra
DC Automation
📶
Mist AI
Wireless & WLAN
🗂️
Junos Space
NOC Platform
Browse SRX Products →Talk to an Expert
Popular Products

Best-Selling Juniper SRX Firewalls

View All 14 Products →
Juniper SRX300 Services Gateway front view
SRX300
Juniper SRX300
Branch Office NGFW with Integrated Routing, SD-WAN & Security
View Product →
Juniper SRX340 Services Gateway front view
SRX340
Juniper SRX340
Mid-Branch NGFW with 16 GE Ports, 4.7 Gbps Firewall & SD-WAN
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Juniper SRX1500 Services Gateway front view
SRX1500
Juniper SRX1500
Enterprise Edge NGFW — 10 Gbps Firewall, 4 × 10GE & 2M Sessions
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Juniper SRX1600 Services Gateway front view
SRX1600
Juniper SRX1600
Next-Gen Enterprise NGFW — 24 Gbps, 25GE Connectivity & EVPN-VXLAN
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Juniper SRX4200 Services Gateway front view
SRX4200
Juniper SRX4200
Enterprise Data-Centre Edge NGFW — 80 Gbps, 8 × 10GE & 10M Sessions
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Juniper SRX5600 Services Gateway chassis front view
SRX5600
Juniper SRX5600
Terabit-Class Chassis NGFW — 1 Tbps Firewall & 256M Sessions
View Product →
FAQs

Frequently Asked Questions About Juniper Networks

What is Juniper Networks?
Juniper Networks is a global networking and cybersecurity company founded in 1996 in Sunnyvale, California. It is one of the three largest networking vendors worldwide alongside Cisco and Arista, primarily known for its carrier-grade routers (MX Series), enterprise switching (EX/QFX Series), and the SRX Series next-generation firewalls. Juniper is also the creator of Junos OS — a single operating system running across all Juniper hardware platforms.
What is the Juniper SRX Series?
The SRX Series is Juniper's range of Services Gateway firewalls — combining stateful packet inspection, IPS, application control, SD-WAN, and IPSec VPN in a unified platform. The SRX family spans branch appliances (SRX300–SRX345), enterprise edge platforms (SRX1500–SRX4600), and hyperscale data-centre chassis (SRX5400–SRX5800).
What is Junos OS?
Junos OS is Juniper's single network operating system, running on all SRX firewalls, MX routers, EX switches, and QFX data-centre switches. Junos uses a modular microkernel architecture derived from FreeBSD, with a consistent CLI syntax and feature implementation across all platforms. A network engineer trained on Junos for SRX firewalls is immediately productive on Juniper routers and switches.
What is the difference between SRX branch and SRX enterprise models?
SRX branch models (SRX300–SRX345) are compact 1U desktop/rack appliances for small offices, delivering 1–5 Gbps firewall with Mini-PIM WAN expansion slots. Enterprise models (SRX1500–SRX4600) are 1–2U rack appliances for campus and data-centre deployments with 10GE–100GE connectivity and 10–100 Gbps throughput. SRX5000 chassis (SRX5400–SRX5800) are modular high-end platforms for hyperscale use.
Where can I buy Juniper Networks products in the UK?
Servnet is a UK Juniper Networks reseller. We supply the full SRX Series firewall range alongside licensing, security service subscriptions, and support contracts. Contact us at sales@servnetuk.com or call 0800 987 4111 for competitive UK pricing.
Does Juniper SRX support SD-WAN?
Yes. SD-WAN capabilities are built natively into Junos OS on all SRX platforms — no additional SD-WAN appliance or overlay software is required. Features include application-aware routing, per-application SLA policy, real-time WAN path monitoring, and automatic failover between MPLS, broadband, and LTE connections.
What is Juniper Security Director?
Juniper Security Director is Juniper's centralised security management platform for the SRX Series. It provides a single console for policy creation, deployment, and monitoring across all SRX firewalls — from branch SRX300s to SRX5800 chassis. Security Director integrates with Juniper ATP Cloud for threat intelligence and supports role-based access control for multi-team environments.

Ready to Talk Juniper?

Our engineers can help you choose the right SRX platform for your branch, campus, or data-centre environment. Get competitive UK pricing from an authorised Juniper reseller.

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