- Find lower prices on MPLS Networks to link your multiple business locaitons.
      Home | Articles | IP VPN Networks | MAN & WAN | MPLS Networks | VPLS Networks | Network Services




LAN to MAN to WAN Connectivity
Standardization on Ethernet LAN technology for metro and wide area networks eases connectivity issues and reduces costs

By: John Shepler

We’re in something of a network revolution right now. Computer networking has deployed many different protocols for communication. Some of these have been borrowed from the telephone industry. But there’s a consolidation underway that is moving toward a single IP networking standard. From LAN to MAN to WAN, it’s all headed toward IP.

Standardization Starts On The LAN
The standardization really started in the LAN or Local Area Network. Nearly all LANs are now constructed using Ethernet network interfaces? It’s not that other network architectures don’t have merit. It’s simply economy of scale. Perhaps the PC, more than anything else, helped to settle the issue with 10/100 Mbps NICs (Network Interface Cards) being included as standard equipment. Today’s faster machines offer 10/100/1000 interfaces with RJ-45 as the standard connector. If you want anything else, you have to pay extra.

Economy of Scale Reduces Cost
This economy of scale encompasses not only desktop computers, but laptops, network switches, routers, servers, cabling and various appliances. The higher the volume produced, the cheaper each interface circuit becomes. Until something very much better comes along, Ethernet is the low cost solution.

The situation has been quite different beyond the company premises. The telephone industry has about a 100 year lead on the computer industry. If you’ve wanted to connect two business locations together or join the Internet, you had to convert your Ethernet protocol to something the telephone system could understand. Remember dial-up modems? Today’s equivalent is the T1 line. It’s all digital and offers rock solid 1.5 Mbps connectivity, but it’s a telco standard service.

Leaving The LAN
The LAN to MAN or WAN connection is most often made with an interface called a CSU/DSU. This can be a stand alone box or a card that plugs in an edge router. It provides the protocol and signal level conversion between Ethernet on the LAN and T1 line connecting through the central office.

More recently, the T1 connection and faster speed DS3 and OCx services have been challenged by the rise of Metro Ethernet services. With MetroE, you connect directly from your Ethernet LAN to an Ethernet MAN and back again at other locations around town. Since this is a Level 2 switched service, it’s like having a way to expand your LAN over a much larger area to include other offices, a factory, warehouses, and an offsite data center.

Common Ethernet Protocol for LAN and MAN
Metro Ethernet melds LAN and MAN with one common service protocol. But what about the WAN or wide area needs? WANs often encompass regional areas of the country or even the entire US. Very large WANs include locations around the world. These, too, can now be joined by Ethernet through MPLS networks. While MPLS has an IP core, it uses its own tag switching system insteadof IP routing whileon the network. But being a multi-protocol system, it can easily transportEthernet. Some larger providers have national and international service footprints, making it easier than ever to connect from LAN to MAN to WAN.

Free Consulting Support plus Pricing & Availability
Find the best prices on virtual private networks, including MPLS VPN Networks, Ethernet LAN Service, VPLS networking Fixed Wireless and SSL-VPN encrypted Internet tunneling. Call now or find out in seconds if your building or a nearby location is already lit for low cost high bandwidth services. Simply enter your commercial building address in the form below and check the map results....

Instant Fiber Bandwidth Service Locator

  Enter your building address here:

Street Address
City | State | Zip Code

Accurate business information is needed to provide correct results and prompt assistance. Your information will only be used for this applicaiton and will not be shared. Click here for the Telarus Shop For Ethernet privacy policy.

Our extensive telecom and network services are provided by Telarus, Inc., a premier bandwidth broker and master agency. Please provide accurate phone & email contact information or call toll free for support anytime at 1-888-848-8749. All information you provide will be used only to support your inquiry and will not be shared. Note: These services are appropriate for business addresses only.




Affordable VPN Home | About Us | Articles | Business Broadband | International DIA | IP VPN Networks | MAN & WAN Bandwidth | MPLS Quote | MPLS Networks | MPLS VPN | VPN Providers | VPLS Networks | Network Services Quote | Security as a Service Providers | Site Map

(c) 2011 - 2017 by John Shepler Profile+, All Rights Reserved.
Please contact us by writing to VPNcontact (at)
View John Shepler's LinkedIn profileView John Shepler's profile