Sunday, February 15, 2009

Label Switching Vs Routing

Label switching is another technology that increases hardware speed and capacity.The hardware has little to do when cell arrives:extraction of the VPI/VCI and table look up can both be implemented directly in hardware,o CPU is required.As a result the raw capacity of an ATM switch is usually quite high.For example:a typical ATM switch,deigned as a LAN replacement,has an aggregate throughput capacity of 2.4 Gbps.

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