Juniper E-Series
| Company type | Product line |
|---|---|
| Industry | Telecommunications equipment |
| Predecessor | Unisphere Networks E-Series |
| Founded | 2002 |
| Products | Broadband service routers, edge routers |
| Parent | Juniper Networks |
| Website | www |
Juniper Networks offers the E-Series, a collection of broadband service routers or edge routers engineered by Juniper Networks. Initially created by Unisphere Networks and subsequently acquired by Juniper in 2002, these routers consolidate various functionalities—including broadband remote access server capabilities, broadband video delivery, dedicated access, 802.11 wireless subscriber management, VOIP, internet connectivity, security measures, and network address translation (NAT)—within a unified platform. Their carrier-grade design facilitates the integration of Broadband Remote Access Server (B-RAS) and dedicated access lines (T1/E1 and higher) into a single system. Unlike other Juniper routers that operate on JUNOS, the E-series runs on JUNOSe software.
Models and Platforms
The Juniper E-series lineup consists of six distinct models crafted to meet different requirements of Service Providers. These range from the high-capacity E320 BSR and ERX-1440 platforms to the mid-tier ERX-1410, the smaller ERX-710 and ERX-705, and the ultra-compact ERX-310. All units run on the JUNOSe operating system and support an extensive array of Internet routing protocols such as BGP-4, IS-IS, OSPF, and RIP.
E120
Designed for small to medium-sized points of presence (PoPs) and central office environments, the Juniper E120 router delivers high performance with its 120 Gbit/s switch fabric. It accommodates up to six line modules capable of handling interfaces from OC3/STM1 to OC48c/STM16 as well as 10 Gigabit Ethernet.
E320
Targeting large-scale PoPs, the Juniper E320 router offers switch fabric options of either 100 Gbit/s or 320 Gbit/s along with support for up to 12 line modules. These modules handle OC3/STM1 through OC48c/STM16 and 10 Gigabit Ethernet connections. The device can manage as many as 96,000 subscribers and is optimized for IPTV deployments with advanced Quality of Service (QoS) and high availability features. Its backplane switching capacity of 320 Gbit/s surpasses Cisco’s 7613 router at 256 Gbit/s, making it a strong contender in the carrier-grade B-RAS segment.
ERX310
The ERX310 model is a compact yet powerful router featuring a 10 Gbit/s switch fabric and two slots for line modules. It supports OC12c/STM4 and Gigabit Ethernet interfaces, making it well-suited for smaller-scale routing applications requiring efficiency.
ERX705
Built for small to medium circuit aggregation scenarios, the ERX705 provides configurable switch fabrics at either 5 Gbit/s or 10 Gbit/s with optional redundancy capabilities. It includes five line module slots supporting OC12c/STM4 and Gigabit Ethernet interfaces, delivering adaptability and high availability within a compact chassis.
ERX710
Serving medium to large circuit aggregation demands, the ERX710 comes equipped with a 5 Gbit/s switch fabric that can be configured with redundancy. It also offers five line module slots compatible with OC12c/STM4 and Gigabit Ethernet interfaces. Both the ERX705 and ERX710 utilize identical line modules and input/output components across the E-series family, simplifying installation and upkeep.
ERX1410
The ERX1410 is an edge router tailored for substantial circuit aggregation tasks. It features a 10 Gbit/s switch fabric with optional redundant configurations, includes twelve line module slots, and supports interfaces up to OC12c/STM4 and Gigabit Ethernet.
ERX1440
The Juniper ERX1440 serves as a robust router designed for small to mid-sized points of presence (PoPs). It delivers a 40 Gbit/s switching fabric with an option for redundancy, accommodates 12 line card slots, and supports interfaces up to OC48c/STM16 as well as Gigabit Ethernet.
Features
Built with a modular, carrier-grade architecture, the ERX platform features a passive midplane, active front-insert line cards, and highly reliable rear-insert I/O modules. The same line and I/O modules are compatible across all chassis variants. Both the 7-slot and 14-slot configurations provide full redundancy capabilities and allow for hot-swapping of line cards to ensure continuous network operation.
The JUNOSe software within the E-series supports stateful Switch Route Processor failover, which guarantees high availability for subscriber management services such as Point-to-Point Protocol (PPP) and Dynamic Host Configuration Protocol (DHCP). This functionality preserves active subscriber sessions and service continuity in the event of failures.
These routers maintain a complete routing table on each port, thereby offloading the route processor from packet forwarding duties to achieve wire-speed IP traffic handling. This performance is made possible through Juniper’s proprietary ASIC technology.
Subscriber management capabilities facilitate effective traffic aggregation from access multiplexers, termination of PPP sessions, and enforcement of Quality of Service (QoS) on a per-flow and per-subscriber basis. Supported protocols encompass DHCP, PPPoE, PPPoA, PAP, CHAP, destination domain-based parsing, IP address pooling, L2TP (both LAC and LNS), RADIUS-triggered disconnects, RADIUS server integration, auto-detection features, Zero-Touch provisioning, and TACACS+.
The E-Series offers a variety of supported modules including Channelized T3, OC3/STM-1 and OC12/STM-4 line cards, Fast Ethernet and Gigabit Ethernet modules, ATM line cards (OC-3/STM-1 and OC-12/STM-4), Packet over SONET modules (ranging from OC3/STM-1 up to OC48/STM-16), Service Modules, as well as IPSec Service Modules.