Overview: Junos Devices

According to the deployment scenario, requirement and network design, Junos OS comes in different shapes and sizes. The platforms running the Junos OS span switching, routing and security and are well suited for a variety of network environments.
Following are some of the routing devices that runs Junos OS:

1. ACX Series: These products deliver simplified end-to-end provisioning and support Layer 2 and Layer 3 functionality with IP/MPLS traffic engineering.
2. LN Series: It provides high-performance network routing, firewall and intrusion detection services (IDS) for harsh environments, including terrestrial, air and sea vehicles and remote data aggregation points.
3. M Series: It is a multiservice routers providing upto 320 Gbps of aggregate half-duplex throughput. It can be deployed in both high-end enterprise and service-provider environments. M Series are used by large enterprises for a number of different roles such as internet gateway router, WAN connectivity router, campus core operates predominantly as a multiservice edge router. It can also be deployed in small and medium cores for peering, route reflector, multicast, mobile and data-center applications.
4. MX Series Ethernet: It provides upto 960 Gbps of aggregate half-duplex throughput. The MX series family is targeted for dense dedicated access aggregation and provider edge services in medium and large point of presence.
5. PTX Series: It is a packet transport switch which is capable of providing up to 16 Tbps of throughput in a single chassis. The PTX Series family is ideal for the service provider super-core and can readily adapt to today's rapidly changing traffic patterns for video, mobility and cloud-based services.
6. T Series core routers: It provides up to 25.6 Tbps of throughput. The T Series family is ideal for service provider environments and is deployed within the core of those networks.
7. Other devices such as the J Series and SRX Series also provides routing functions.

Following are the Junos Switching Devices:

1. EX Series: Ethernet switch which provides up to 6.2 Tbps of full duplex throughput. The EX Series switches are designed for access, aggregation, and core deployments and are well suited for low-density to high-density enterprise and data center environments.
2. QFX Series switches: It provides a high-performance, ultra-low latency, feature-rich L2/L3 device with a wire-speed 10 GbE throughput and standards-based Fibre Channel I/O convergence. For use in data center environments, it provides a ready solution for Juniper's QFabric system.

Following are the Junos Security Devices:

1. J Series: The J series services routers provides up to 2 Gbps of throughput. They are deployed at branch and remote locations in the network to provide all-in-one secure WAN connectivity, IP telephony, and connection to local PCs and servers through integrated Ethernet switching.
2. SRX Series: It is a gateway providing up to 120 Gbps of full duplex throughput. The SRX series family is designed to meet the network and security requirements for consolidated data centers, managed services deployments and aggregation of security services in both enterprise and service provider environments.