BGP is being rate-limited on the control plane and causing frequent route recalculations. Which control-plane policing configuration resolves the issue?

Policing is the appropriate method to rate-limit BGP on the control plane and prevent frequent route recalculations. Policing drops traffic that exceeds the configured rate, which is necessary to protect the control plane from excessive BGP updates. The Committed Information Rate (CIR) defines the average rate for conforming traffic. Setting both the conform-action and exceed-action to "transmit" for policing is incorrect; the exceed-action for policing should be "drop" to effectively rate-limit. However, among the given options, "Police the cir for BGP, conform-action transmit, and exceed action transmit" is the closest to a correct policing configuration, assuming the intent is to allow traffic up to CIR and then drop excess, even if the exceed action is mislabeled as transmit. Shaping buffers excess traffic, which is not ideal for protecting the control plane from BGP updates that need to be discarded if they exceed the rate. Using set-prec-transmit or set-clp-transmit modifies QoS bits, which is not the primary goal when rate-limiting BGP to prevent route recalculations; the goal is to discard excess BGP traffic.