Which control plane process allows the MPLS forwarding state to recover when a secondary RP takes over from a failed primary RP?
MP-BGP uses control plane services for label prefix bindings in the MPLS forwarding table
LSP uses NSF to recover from disruption *i control plane service
FEC uses a control plane service to distribute information between primary and secondary processors
LDP uses SSO to recover from disruption in control plane service
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