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Telecom Broker Network News
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 connection can support up to hundreds of desktop computers depending upon the applications and bandwidth being utilized.
Many VoIP service providers guarantee that phone calls will not travel over the public Internet, but are converted and transmitted over the traditional telephone network directly from the VoIP provider's private Internet network that usually adheres to a defined Quality of Service (QoS).
The ADSL downstream receiving rate from the Internet usually varies from 1.5 to 9Mbps while the upstream sending rate usually varies from 16 to 640 Kbps.
The main limitation on DSL bandwidth speed is the distance from the customer premise to the local telephone company central office.
Multiprotocol Label Switching (MPLS) is a data communication standard that creates separate data paths for specific sequences of packets. Each packet is identified by a label that is encapsulated into each packet. This eliminates the need for Internet Protocol (IP) routers to look up the IP address of the next router in the network in order to forward the packet and as a result, speeds up the network.
Internet access via Ethernet is becoming more and more popular to meet the growing demand for dynamic high bandwidth increases. For example, an increase from 10 to 100 Mbps can be accomplished by a High Speed Internet over Ethernet provider by simple changing the settings on already installed Ethernet switches. This scalability is cost effective for customers in that bandwidth can be increased or decreased quickly and easily, on demand, without the necessity of adding or changing datacom equipment as would be required with T1 / T3 or E1 / E3 local access lines.
Digital Subscriber Line (DSL) connects end users (subscribers) to the Internet via a plain old telephone service (POTS) line that uses an existing copper pair but has been sped up by a Digital Subscriber Line Access Multiplexer (DSLAM) located at the service provider centeral office (CO) to form a continuous digital high-speed data connection from the customer premise to the Internet.
Exlpore why Ethernet is probably the next killer broadband delivery platform.
Telecom Links mission is to be a comprehensive source of telecommunications information on the World Wide Web.
Layer 2 MPLS VPNs (L2VPNs) are similar to Frame Relay, Asynchronous Transfer Mode, or point-to-point Wide Area Networks (WANs).
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