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Ethernet Today

March 15, 2010
6:46 AM
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Bandwidth to Support Convergence
Convergence means combining or converging voice, data and video onto a single network. Enterprises usually need to expand their LAN bandwidth and set up a QoS or Quality of Service priority system to give priority to real-time streams such as telephone calls or video conference feeds, which are more sensitive to network delays than data transfers. Most often, the common protocol for convergence is IP.

How is PoE used for IP Phones?
PoE or Power over Ethernet is a standard that defines a way to transmit electric power to network devices as well as information packets. When PoE equipment is installed in equipment lockers, an IP telephone gets its power from the network and does not need a separate AC power supply.

What's the difference between MAN and WAN?
MAN stands for Metropolitan Area Network. MANs are set up to provide broadband network connections within a city or metropolitan network. WAN means Wide Area Network, a term applied to any network outside the control of the enterprise. A MAN is a limited case of WAN.

How does managed security work?
Companies that specialize in network security install VPNs and managed firewalls that they remotely monitor from a network operations center. A dedicated security team that specializes in knowing what threats are out there, when they are coming for your network and what to do to mitigate the threat provides the vigilance for a multitude of clients.

Will Carriers "Light Buildings"?
Some will if their closest point of presence (POP) is within a mile or so of your location. The farther away you are, the higher the bandwidth commitment needs to be in order to justify the carrier's construction costs.


VPLS Network Services
Virtual Private LAN Services or VPLS are full-mesh protocol transparent WAN services intended to connect multiple site LANs into a single Ethernet LAN. Find out in seconds if your building or a nearby location is already lit for carrier Ethernet services. Simply enter your building address and check the map results. Even if not wired, you may qualify for free or low cost buildout or wireless service.

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