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What is a Soft-Permanent Virtual Circuit (Soft-PVC)?

April 26, 2017circuit virtual

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What is a Soft-Permanent Virtual Circuit (Soft-PVC)?

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A. A Soft-PVC is a PVC that is established manually across a UNI and dynamically across a User-to-Network Interface (NNI). The Soft-PVC stays up through the ATM network at all times. If there is an ATM switch failure, the Soft-PVC reroutes over the ATM network. Soft-PVC configuration provides the best of PVCs and SVCs because it provides the flexibility of SVCs in the core of the network and the stability of PVCs at the edge. Soft-PVCs can be configured only in ATM switches. Refer to Configuring SVCs, PVCs, Soft PVCs, PVPs, and VP Tunnels for more detailed information on how to configure Soft-PVCs. This figure shows where the PVCs and SVCs are configured.