Why is the interface still in Down state after I create an MFR interface and configure the PVC and IP address on the interface

The following conditions must be met for a multilink frame relay (MFR) interface to be in the Up state:

1. The MFR interface must work in data circuit-terminating equipment (DCE) mode. You can run the fr interface-type dce command to change the MFR interface type to DCE.
2. The MFR interface must be bound to a physical interface. Run the link-protocol fr mfr interface-number command to bind an interface to the MFR interface.

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