Juniper Networks

Juniper Networks, Inc. (NYSE:JNPR) is an information technology and computer networking products multinational company, founded in 1996. It is headquartered in Sunnyvale, California, USA. The company designs and sells high-performance Internet Protocol network products and services. Juniper's main products include T-series, M-series, E-series, MX-series, and J-series families of routers, EX-series Ethernet switches and SRX-series security products. JUNOS , Juniper's network operating system runs on most of the Juniper products. In 2009, Juniper made its debut on Fortune Magazine's 100 Best Companies to Work for Juniper ranked 4 in Fortune Magazine's World's Most Admired Companies list in Networking Communications category in 2009.

Products

Network Operating Systems

JUNOS is the Operating System that runs on most of Juniper's networking equipment.[37] It is Juniper's single in-house network operating system spanning routing, switching and security platforms on its router products. Juniper JUNOS was the first commercially available full-fledged modular OS with full memory protection available on the routing products, which greatly impacted competitive landscape. Initially, the biggest competitor of JUNOS was Cisco Systems's IOS, but now JUNOS mainly competes against other modular systems, such as Cisco IOS-XR and Alcatel-Lucent SR-OS. JUNOS features both vertical and horizontal modularity, and provides API for third-party applications (known as "JUNOS Space"). Although JUNOS was originally derived from FreeBSD, subsequent product development resulted in major kernel and infrastructure improvements (like In-Service Software Upgrade and real-time packet forwarding plane).

Router Products

M40 of M-series was the first product by Juniper Networks, which was released in 1998. The M40 was the first of its kind product, capable of forwarding packets in entirely silicon, without support from the general-purpose CPUs. This was achieved by using a proprietary chipset codenamed "ABC". The chipset consisted of three ASIC types, "A", for high-speed switching, "B" for L2 processing and memory interface and "C" for L3 services, together forming a packet processing engine (PFE). The PFE also included shared packet memory, a single packet forwarding table, and a one-write, one-read architecture.The entire PFE was capable of forwarding at 40 Mpps, a capacity more than 100 times faster than that of any other available router architectures at that time. Many features of M40 (such as separation of control and forwarding plane and modular OS) has formed the industry standard.

* E-series routers are broadband edge routers. The E series was developed by Unisphere, which Juniper acquired in 2002.

The E series routers run the JUNOSe operating system inherited from acquisition of Unisphere.
* J-Series routers are small customer-premises equipment or enterprise routers.
* M-series routers are multiservice edge routers.
* T-series routers are large core routers.
* MX-series routers are Ethernet services routers.

The J, M, T, and MX series routers run JUNOS.

While the E, M, and T series are all high speed ASIC based devices capable of terminating multiple broadband optical connections, the J series forwarding plane is partially software-driven. Capable of terminating DS3 (45 Mbit/s) and slower lines, the J-series product line heavily draws from the modern multicore CPU technology and is aimed at corporate branch offices and service provider premise equipment. In the fall of 2006, the J series got a refresh of the modular products offering significantly increased performance to meet updated WAN technologies requirements. In the same announcement Juniper shared that it would co-operate with Avaya to integrate Avaya IP Telephony in the J series of routers.

Switch Products

* EX Series Switches - Juniper's switch line-up was introduced in 2008 and runs JUNOS. Available in fixed and modular form factors with full or partial PoE functionality, EX family represents Juniper's bid for enterprise and cost-optimized Ethernet markets, augmenting the "One Operating System" strategy and generating $74 million in revenue during 4Q2009.
Security Products

# SRX Series Dynamic Service Gateways. A series of security services devices running JUNOS. Ranging from branch-office models to the SRX 5800, the world's fastest firewall. Combines Security (S) Routing (R) and Switching (X) in one chassis. Security features include the full UTM functionality previously found on ScreenOS, including web filtering, IDP and antivirus.

# NetScreen SSG Series and ISG Series firewalls - The SSG Series runs the ScreenOS operating system and provide firewall, anti-virus, intrusion protection and VPN services. Added to the product lineup after purchase of the NetScreen Technologies company, they do not run the JUNOS that the higher-end products do. Instead they run ScreenOS which provides a sophisticated mid-tier level of service. While capable of complex configurations, these are targeted mostly to small and medium sized business. The ISG series is capable of more advanced IDP and virtualisation functionality and higher performance.

# Secure Access SSL VPN gateways — Secure Access products provide SSL based VPN services to remote users without specialized clients.

# NSM Network and Security Manager (formerly Netscreen Security Manager, renamed Aug. 2008) - This is an enterprise-wide management tool for Juniper devices which allows for a single-point bastion control over multiple Juniper devices as well as serving as a syslog host & configuration backup repository, as well as the NSMXpress appliance that furthermore provides distributed hierarchical features.

# IDP Intrusion detection and prevention appliances

Source from Wikipedia - http://en.wikipedia.org/wiki/Juniper_Networks