4.4.3 Packet-Pair Bandwidth Estimation Using TCP

The following sequence occurs between a client and server when conducting the packet-pair experiment over TCP:

  1. The client sends a Describe (section 2.2.7.2) request.

  2. The server sends a "200 OK" response that includes the SDP record.

  3. The client sends a TcpPacketPair (section 2.2.7.12) request with a content type of application/x-rtsp-packetpair (section 2.2.6.3.2).

  4. The server sends a "200 OK" response with three $P packets in the message body (section 2.2.7.12).

 The following illustration shows the sequence described above.

Packet-pair experiment sequence over TCP

Figure 14: Packet-pair experiment sequence over TCP