TDS is the Sybase-proprietary protocol for handling communication between a client application and Adaptive Server.
jConnect includes a PROTOCOL_CAPTURE connection property that allows you to capture raw TDS packets to a file.
If you are having problems with an application that you cannot resolve within either the application or the server, use PROTOCOL_CAPTURE to capture the communication between the client and the server in a file. You can then send the file, which contains binary data and is not directly interpretable, to Sybase Technical Support for analysis.