MPLS VPNs transport layer 2 packets across the network and encapsulate transport protocols such as ATM, Ethernet, and SONET, allowing MPLS networks to seemlessly upgrade and replace legacy layer 2 networks without requiring network reconfiguration or using protocols higher than layer 2. In comparison, layer 3 VPNs must use the layer 3 Internet Protocol (IP).

An Internet T1 (or T-1) T1 is a symmetrical local access connection to an Internet port that allows for downloads and uploads of up to 1.5 Mega Bits Per Second (Mbps) which is 30 times as fast as a 56 Kilo Bits Per Second (Kbps) dial-up connection over a standard Plain Old Telephone Service (POTS) phone line.

Voice over IP (VoIP) sends voice data in packets using the Internet Protocol (IP) instead of analog waves as does plain old telephone service (POTS) lines.

Our clients include Fortune 500 Companies, Small-to-Medium Businesses (SMBs) Governmental Agencies, Defense Contractors, Hospitals, Law Offices, Internet Service Providers, Wireless ISPs, State Universities, Web Hosting Companies, etc.

Ethernet can be used to connect twisted copper pair networks and to connect fiber optic cable networks.

As business networks face increasing numbers of applications with low latency and high bandwidth demands, MPLS allows network administrators to specify which applications should be prioritizes above others so that data flows across the network is an organized fashion that reflects the relative business importance of various type of data.

The wide-spread use of Ethernet has reduced the cost of Ethernet switches and also the space required to deploy Ethernet networks either via twisted pair copper or fiber and virtually all computer manufacturers include an Ethernet card as a standard component on Personal Computer (PC) motherboards which eliminates having to install an Ethernet card as a peripheral device.

Digital Subscriber Line (DSL) is a voice and data access service that supports both voice and data communication across a copper plain old telephone serivce (POTS) line and significantly increases the digital capacity of analog POTS access lines.

You can compare MPLS to Frame Relay and ATM technologies.

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MPLS can be used to create highly-scalable IP networks with layer 2 level security as well as easy network configuration, management, and provisioning.