Juniper E-Series

Last updated
Juniper E-Series
Manufacturer Juniper Networks
Type Network router
ProcessorInternet processor

Juniper E-Series is a series of broadband services routers or edge routers manufactured by Juniper Networks. [1] [2] [3] The E series was originally developed by Unisphere Networks, which Juniper acquired in 2002. [4] These routers provide multiple services including broadband remote access server, broadband video services, dedicated access, 802.11 wireless subscriber management, VOIP, internet access, security services, network address translation (NAT) etc. on a single platform. The carrier-class architecture of E-series routers [5] allows to combine Broadband Remote Access Server (B-RAS) and dedicated access capabilities (T1/E1 and above) on a single and integrated platform. The E-series routes runs on JUNOSe software compared to other series of routers of Juniper which runs on JUNOS.

Contents

Models and Platforms

The Juniper E-series includes six different models that are designed to address the variety of Service Provider requirements. [6] The specific models include the high-capacity E320 BSR and ERX-1440 platforms, the mid-range ERX-1410 platform, compact ERX-710 and ERX-705 platforms, and the highly compact ERX-310. All E-series platforms use a single version of the JUNOSe operating system, and support a full suite of Internet routing protocols, [7] including BGP-4, IS-IS, OSPF, and RIP. [8]

E120

The Juniper E120 router [9] is a high-performance router used primarily for small to medium-sized points of presence (PoPs) and central offices. The E120 has a 120 Gbit/s switch fabric and hosts up to six line modules that support OC3/STM1 through OC48c/STM16 and 10 Gigabit Ethernet rates. [2]

E320

The Juniper E320 router is a high-performance router used primarily for large points of presence (PoPs). The box supports a 100 Gbit/s or a 320 Gbit/s switch fabric and hosts up to 12 line modules that support OC3/STM1 through OC48c/STM16 and 10 Gigabit Ethernet interfaces [2] with the ability to support 96,000 subscribers. [10] The E320 was designed with video in mind, adding the Quality of service (QOS) and high availability that carriers want for IPTV, [11] as well as a huge increase in density. [10] Cisco Systems has two boxes selling into this space: the 10000 series, considered Cisco's primary B-RAS entry, and the 7600 line of edge routers (of which the 7613 is the largest), which include some B-RAS capabilities. The B-RAS Backplane Switching Capacities of E320 supports up to 320 Gbit/s compared to 256 Gbit/s of Cisco 7613. [10]

ERX310

The Juniper ERX310 is a compact but high-performance router that has a 10 Gbit/s switch fabric, two slots dedicated to line modules, and supports up to OC12c/STM4 and Gigabit Ethernet interfaces. [2] The 3-slot router contains a 10 Gbit/s switch fabric /route processor (SRP) and the rest of the two slots dedicated to line modules.

ERX705

The Juniper ERX705 is a compact router that is used for small and medium-sized circuit aggregation applications. They can be configured with a 5 Gbit/s or 10 Gbit/s switch fabric (optional switch fabric redundancy), has five slots for line modules, and supports up to OC12c/STM4 and Gigabit Ethernet interfaces. [2] These 7-slot router contains either a 5 Gbit/s or 10 Gbit/s switch fabric / route processor (SRP) with optional SRP redundancy for high availability and 5 slots dedicated to line modules.

ERX710

The Juniper ERX710 is mainly used for medium-sized and large circuit aggregation applications. They have a 5 Gbit/s switch fabric with optional redundancy, five slots for line modules, and supports up to OC12c/STM4 and Gigabit Ethernet interfaces. [2] The ERX-705 and ERX-710 routers utilize the same line modules and I/Os used across the entire E-series product line.

ERX1410

The Juniper ERX1410 is an edge router that is used for large circuit aggregation applications. They have a 10 Gbit/s switch fabric with optional redundancy, 12 line module slots, and supports up to OC12c/STM4 and Gigabit Ethernet interfaces. [2]

ERX1440

The Juniper ERX1440 is a high-performance router is used for small to medium-sized points of presence (PoPs). The ERX1440 has a 40 Gbit/s switch fabric with optional redundancy, 12 line module slots, and supports up to OC48c/STM16 and Gigabit Ethernet interfaces. [2]

Features

The ERX system uses a modular, carrier-class design with a passive midplane, active front-insert line modules, and high-reliability, rear-insert input/output (I/O) modules. All chassis types use the same line modules and I/O modules. [3] The 7-slot and 14-slot systems support full redundancy and line module hot-swapping to optimize network uptime.

The E-series JUNOSe system software and applications supports stateful Switch Route Processor switchover capabilities. The high availability for subscriber management applications, including all Point-to-Point Protocol and Dynamic Host Configuration Protocol access options, means that all subscriber sessions and services remain active during failure. [12]

These routers maintain an entire routing table per port, which removes the route processor from the forwarding path and provides wire speed performance IP traffic streams, a process aided by Juniper developed ASIC technology.

The E-series supports subscriber management features in order to effectively aggregate traffic from access multiplexers, terminate Point-to-Point Protocol (PPP) sessions, and enforce QoS policies on a per flow and per subscriber basis. Features includes support for DHCP, PPPoE, PPPoA, PAP, and CHAP, domain parsing based on destination domain, IP address pooling, L2TP, LAC, LNS, RADIUS-initiated disconnect, RADIUS server support, auto-detection, Zero-Touch configuration, and TACACS+ etc.

The E-Series Modules supported are Channelized T3, Channelized OC3/STM-1 and OC12/STM-4 LM, Fast Ethernet/Gigabit Ethernet Line Modules, OC-3/STM-1 and OC-12/STM-4 ATM Line Modules, OC3/STM-1, OC12/STM-4 and OC48/STM-16 Packet over SONET Line Modules, Service Modules and IPSec Service Module etc. [8]

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References

  1. ↑ "Juniper Networks Extends Innovation at the Broadband Network Edge; Leader in Broadband Aggregation Announces New Features for E-series Edge Routing Platform". Business Wire . Oct 11, 2004. Retrieved 2009-04-25.
  2. 1 2 3 4 5 6 7 8 "Juniper E-series". Juniper Networks . Retrieved 2009-04-25.
  3. 1 2 "E-series Broadband Services Routers" (PDF). systems solutions. Archived from the original (PDF) on 2007-02-21. Retrieved 2009-04-25.
  4. ↑ Raynovich, R. Scott (May 20, 2002). "Juniper Nabs Unisphere for $740M". Light Reading. Retrieved 2009-04-25.
  5. ↑ "CTBC Selects Juniper E-Series". Light Reading. October 29, 2003. Retrieved 2009-04-25.
  6. ↑ "Telefonica Argentina Selects Juniper Networks for National IP Network". Business Wire. Oct 19, 2006. Archived from the original on 2009-05-02. Retrieved 2009-04-25.
  7. ↑ "Juniper Networks, Inc. (Nasdaq)". Reuters . Archived from the original on 2008-10-09. Retrieved 2009-04-25.
  8. 1 2 "Juniper Networks E-Series Broadband Service Routing Platform". Thinkcp Technologies. Retrieved 2009-04-25.
  9. ↑ "Juniper Networks Release E-120 Router – Making IPTV More Provider & User Friendly". webtvwire.com. July 30, 2007. Retrieved 2009-04-25.
  10. 1 2 3 "Juniper Aims E-Series at IPTV". Light Reading. June 6, 2005. Retrieved 2009-04-25.
  11. ↑ "China Telecom Shanghai Chooses Juniper Networks". China Tech News. February 17, 2006. Retrieved 2009-04-25.
  12. ↑ "Juniper Offers New Features for E-series Edge Routing Platform". Enterprise Networks & Servers. Nov 2004. Retrieved 2009-04-25.[ permanent dead link ]
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