METHOD FOR ANALYZING CODED DATA STREAMS SIMULTANEOUSLY TRANSMITTED IN IP NETWORKS

摘要

One network protocol (RTP) each, having data packets (dp) comprising an expandable header (KE) is provided for a data stream (dsl..n) encoded in a manner individual to said data stream, and the key information (sil..n) formed in a data stream manner individual to said data stream is inserted into an expandable header (RTPH) of a data packet (dp) of the respective data stream (dsl..n) and transmitted. The key information (spl..n) is selected in a manner individual to said data stream from the expanded headers (KE) of received data packets (dp) of the respective data stream (dsl..n), and the associated encoded data stream (dsl..n) is decoded by means of at least one piece of selected data stream individual key information (sil..n). The forming and inserting of key information (sil..n) into standard expanded headers (KE) can be performed with little additional expense, thus significantly reducing the expenditure for the analysis or diagnosis of the simultaneously transmitted encoded data streams (dsl..n). Advantageously, the insertion of key information (sil..n) can be activated or initiated only if the diagnosis or analysis and/or the recording of the data streams is currently being performed.