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Benefits of Metro Ethernet in Telecommunication Network

Posted By: technopediasite
How work Metro Ethernet
Metro Ethernet

Ethernet History
The University of Hawaii’s ALOHA network is considered to be the ancestor of all shared media networks. In 1968, Norman Abramson pioneered the precepts of Ethernet by developing this packet radio networking system that ran at 4800bp/s and 9600bp/s. A few years later (1973), Robert Metcalfe and David Boggs at Xerox Corporation in Palo Alto, CA applied the ALHOA network principles and created the world’s first Local Area Network (LAN). Initially named ALTO ALOHA, the name was later changed to Ethernet. This first version of Ethernet ran at speeds up to 2.94Mbps. One of the first customers of Ethernet was the White House – it was used for word processing. Beyond that, this version of Ethernet was not successfully commercialized.

First commercial released was by DEC, Intel and Xerox (DIX, the Gang of Three) in 1980 as Ethernet, Version 1 (commonly referred to as Ethernet DIX80). The second revision release was in 1982 as Ethernet, Version 2 (commonly referred to as Ethernet DIX82). This is the standard we know today as Ethernet & now Ethernet subdivision is metro Ethernet. Our main purpose is discuss about the METRO ETHERNET. Now I will try to discuss that "what is Metro Ethernet & what is the benefits of Metro Ethernet in telecom network. Why Metro Ethernet is important in telecom network these days.

What is Metro Ethernet
Use of Metro Ethernet
Use of Metro Ethernet
Metro Ethernet is the use of Carrier Ethernet technology in metropolitan area networks (MANs). Because it is typically a collective endeavor with numerous financial contributors, Metro Ethernet offers cost-effectiveness, reliability, scalability and bandwidth management superior to most proprietary networks. We can say in other words that “ Metro Ethernet is an Ethernet transport network  that provides point-to-point or multipoint connectivity services over a metropolitan area network (MAN). Ethernet originated as a LAN technology, and became a replacement for low-speed WAN technologies.

Metro Ethernet can connect business local area networks (LANs) and individual end users to a wide area network (WAN) or to the Internet. Corporations, academic institutions and government agencies in large cities can use Metro Ethernet to connect branch campuses or offices to an intranet. use Metro Ethernet to:
Interconnect business offices or data centers. Metro Ethernet can connect two sites or hundreds of sites.

Connect residential subscribers or businesses to the Internet.
Provide connectivity to public or private cloud data centers.
Provide wholesale mobile backhaul services.
Provide multicast delivery used by business customers for video conferencing, and used by residential subscribers for IPTV and video applications.

Benefits of Metro Ethernet
Metro Ethernet provides the following benefits:
Manage Risk Smartly : Though multiple network functions converge on a single chassis, all the functions run independently, benefiting from operational, functional, and administrative separation. Partitioning a physical system, such as Broadband Network Gateway (BNG), into multiple independent logical instances ensures that failures are isolated. The partitions do not share the control plane or the forwarding plane, but only share the same chassis, space, and power. This means failure in one partition does not cause any widespread service outage.

Flexibility—Supports a wide variety of services and transports.
Reliability—Ethernet operations, administration, and maintenance (OAM) performs path discovery, detects and reports connection failures, and measures performance.
Cost effectiveness/Ease of Use—Networks are less complicated and easier to maintain than WAN networks, which lowers equipment and ownership costs.
Quality of Service (QoS)—Supports QoS features, such as: classification, marking, policing, queuing, and scheduling.
Scalability—Supports speeds from one Mbps to 10 Gbps. Customers can increase bandwidth dynamically, and often without the need to purchase or install new equipment.
Juniper Networks Metro Ethernet Solutions
Juniper Networks Metro Ethernet solutions support zero touch deployment and are MEF CE2.0 certified. This certification:
➤Saves time and reduces testing costs

Provides faster rollout of services

Facilitates inter-carrier connectivity

Metro Ethernet Features and Benefits
Benefits of Metro Ethernet
Benefits of Metro Ethernet

Metro Ethernet over Seamless MPLS : You can run Ethernet services over your MPLS network from the core to the access segment. It provides service flexibility and scaling of the MAN where you can terminate Metro Ethernet services at any point in the network.
Metro Ethernet over Optical Transport Networks: Juniper Networks product line of BTI packet optical equipment delivers high-performance for Metro Ethernet services.
ACX Series Universal Access Routers: These compact, power-efficient, and MEF CE 2.0–certified Carrier Ethernet access and aggregation routers offer rich Layer 2, Layer 3, and MPLS features, programmability, and Ethernet OAM support.
MX Series Universal 3D Routers: These routers offer high performance for converged residential, mobile, and Metro Ethernet services on a single platform.

Cloud Exchange Networks

With cloud exchange networks (shown in Figure 3), you can augment Ethernet resources by sharing them with multiple customers. Instead of committing bandwidth to each customer, you can dynamically allocate bandwidth as needed enabling you to maximize network utilization and reduce infrastructure costs.

"Pure" Ethernet technology in the MAN environment is relatively inexpensive compared with Synchronous Digital Hierarchy (SDH) or Multiprotocol Label Switching (MPLS) systems of similar bandwidth. However, the latter technologies can be applied to Metro Ethernet in urban areas willing to devote the necessary financial resources to the task.
Overall Metro Ethernet was first used outside of the LAN in metropolitan areas, called MANs (Metropolitan Area Network). We use fiber cabling because of the support for longer distances.

Metro Ethernet Services and Topologies

There are several different Metro Ethernet services, each service has a different topology. The MEF (Metro Ethernet Forum) is a non-profit consortium that defines standards and services for Metro Ethernet. In the remaining of this lesson, we’ll discuss some of the most common services:
E-Line (Ethernet Line Service)

E-LAN (Ethernet LAN Service)
E-Tree (Ethernet Tree Service)


You have now learned the basics of Metro Ethernet:
Ethernet technology is interesting because it is used in so many products, making it cheaper compared to some other technologies.
Ethernet was first used outside of the LAN in MANs (Metropolitan Area Network), which is why we call it Metro Ethernet.
Ethernet is also used on WAN connections, which is why we also call it carrier Ethernet. 
The provider might use another technology on their network but the end-to-end protocol in use is Ethernet.

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