M-series Multiservice Edge Routers combine best-in-class IP/MPLS capabilities with unmatched reliability, stability, security, and service richness. They are ideal for enterprises and service providers and can be deployed in small and medium core, multiservice edge, collapsed POP routing, peering, route reflector, campus or WAN gateway applications. They support high density aggregation of a large range of access types including ATM, Frame Relay, Ethernet, SONET/SDH and TDM. M-series platforms leverage the highly programmable Internet Processor II ASIC, Juniper Networks I-chip, and IP/MPLS-rich JUNOS software.

Product Overview
The Juniper Networks M-series multiservice edge routing portfolio spans from 7 Gbps up to 320 Gbps of throughput and includes the M7i, M10i, M40e, M120, and M320 platforms. Because the same scalable and production-hardened JUNOS software runs on all M-series platforms, a consistent set of capabilities is available at all network locations – regardless of customer connection or serving area density.
The M-series platforms are deployed in the world’s largest networks. Why? Because they deliver advanced IP/MPLS services at scale, enabling enterprises and service providers to reduce costs through network consolidation while simultaneously generating new revenues. Constructed with a clean separation between control plane, forwarding plane, and services plane, M-series routers support multiple services over any type of access connection without compromise. They support these services on a single platform – maximizing revenue and minimizing operational and capital costs. The services include a broad array of virtual private networks (VPNs), network-based security, real-time voice and video, bandwidth on demand, rich multicast of premium content, IPv6 services, granular accounting, and much more. The service portfolio continues to grow with every release of JUNOS software, leveraging the tremendous flexibility and performance headroom of the service-built architecture.
Applications
The versatile M-series platforms can be deployed in both the service provider environment and in high-end enterprise environments.
In service provider environments, the M-series platform is deployed predominantly as a multiservice edge router but can also be deployed in small and medium cores, peering, route reflector, multicast, mobile and data center applications.
Large enterprises typically deploy M7i or M10i in a number of different locations, including Internet gateway router, WAN router, campus core router, regional backbone and data center.
Features and Benefits
With its broad interface portfolio, a single M-series platform can provide a single point of edge aggregation for thousands of customers over any access type, including ATM, Frame Relay, Ethernet, and TDM, as well as at any speed from DS0 up to OC-192/ STM-64 and 10 Gigabit Ethernet. Leveraging dense Ethernet and highly channelized interfaces, the M-series platforms boast leading densities for virtually all port types.
Comprehensive VPN Portfolio
The M-series platforms also support the industry’s most comprehensive VPN portfolio. They can simultaneously run and scale Layer 2 virtual circuits, Layer 2 VPNs, Layer 2.5 Interworking VPNs, Layer 3 2547 VPNs, VPLS, IPSec, GRE, IP-IP and other tunneling mechanisms with no performance compromise. This broad set of VPNs meets the needs of the widest possible set of customers, maximizing the enterprises and service provider’s revenue while minimizing required infrastructure. For example, a provider can use Layer 3 VPNs to deliver an outsourced routing service and can also use Layer 2 VPNs to provide a point-to-point ATM service over a common IP/MPLS infrastructure.
Granular QoS and Statistics
Rich packet processing enables the M-series platforms to support multiple levels of granular quality of service (QoS) per-port, per-logical circuit (DLCI, VC/VP, VLAN), and per-channel (to DS0) for traffic prioritization. These comprehensive QoS functions include classification, rate limiting, shaping, weighted roundrobin scheduling, strict priority queuing, weighted random early detection, random early detection, and packet marking. For network convergence applications, Layer 2 class of service (CoS) can be mapped to Layer 3 CoS on a per-DLCI, per-VP/VC, or per- VLAN basis. Simultaneously, extensive statistics can be collected and diagnostics performed at this same level of granularity to enable flexible billing, traffic planning, and rapid troubleshooting.
Rich Packet Processing
What’s more, a broad portfolio of services can be layered on top of VPNs for additional revenue generation. A comprehensive suite of multicast capabilities, including multicast over MPLS VPNs, enables efficient distribution of premium content. Hardware-based IPv6 and a number of IPv6 migration tools such as IPv6 over MPLS, ease access to the benefits of this next-generation IP protocol without performance compromise. Network Address Translation (NAT) and stateful firewall can be configured per VRF to enable networkbased security for additional revenues, and IPSec can be used to support a premium security service for end users with high security requirements. The M-series service-built edge is continuously enhanced with new packet processing capabilities to ensure maximum revenue generation opportunities.
Highly Reliable
The M-series service-built architecture has been designed from the ground up with scale and stability in mind, including the modular and fault-protected design of JUNOS software along with a rigorous system-testing process. Furthermore, all M-series routers offer redundant power and cooling and the M10i, M40e, M120, and M320 offer fully redundant hardware, including redundant Routing Engines and Switching/Forwarding Engine Boards. JUNOS software features enhance this redundant architecture by enabling non-stop forwarding in the event of a routing engine failure via a hitless switchover and when a minor software upgrade is required by supporting in-service software upgrades. This functionality augments other high-availability capabilities that include graceful protocol routing restart, MPLS fast reroute, VRRP, SONET APS, SDH MSP, BFD, and LACP.
Robust Security
All M-series platforms support highly scalable J-Protect filtering capabilities, unicast reverse-path forwarding, and high-performance rate limiting for industry-leading DOS attack protection. The J-Protect security capabilities of the M-series platforms can be further enhanced with the MultiServices Physical Interface Card (PIC) that accelerates, in hardware, additional network-based security services such as high-speed NAT, stateful firewall with attack detection, and J-Flow accounting. With the rich feature set of JUNOS software combined with industry-leading ASIC technology, the M-series service-built edge provides a new level of reliable and secure service delivery at the edge of the network.
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