| 1. | On the other hand, permanent virtual circuits are preconfigured into the network.
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| 2. | Tymnet II's different method of constructing virtual circuits allowed for much better scalability.
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| 3. | A DLR may describe an end-to-end circuit that comprises physical or virtual circuits.
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| 4. | Connection-oriented communication may be a circuit switched connection, or a packet-mode virtual circuit connection.
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| 5. | LMI virtual circuit status messages provide communication and synchronization between Frame Relay DCE devices.
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| 6. | In " LLC Encapsulation " the hosts use a single virtual circuit for multiple protocols.
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| 7. | With virtual circuit multiplexing, the communicating hosts agree on the high-level protocol for a given circuit.
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| 8. | Virtual circuits are especially useful in building robust failover mechanisms and allocating bandwidth for delay-sensitive applications.
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| 9. | Multiple virtual circuits can be active on the same physical end-points ( performed by using subinterfaces ).
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| 10. | The VPI is useful for reducing the switching table of some virtual circuits which have common paths.
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