RTP Dynamic Flow Detection
The rtp dynamic-flow-detection CLI command, under the ACS Rulebase Configuration mode, enables the Real Time Streaming Protocol (RTSP) and Session Description Protocol (SDP) analyzers to detect the child RTP and RTCP flows. If you configure the RTSP/SIP and SDP analyzers, and rtp dynamic-flow-detection CLI is present, then there's no need for configuring RTP/RTCP explicitly. With the rtp dynamic-flow-detection CLI command, the child RTP or RTCP flows get corelated to their parent RTSP/SIP-SDP flows.
Once the parent flow (RTSP/SIP-SDP) gets cleared, the child RTP/RTCP flows also gets cleared. In the absence of this CLI, the L7 layer analysis for RTP and RTCP needs a separate analyzer configuration. There’s no correlation of RTP/RTCP flows to RTSP/SIP-SDP flow.