The Frame Relay Trace utility (FRTRACE) can be used locally at the router or server console, or remotely from a workstation that is running RCONSOLE. FRTRACE offers the following features:
- Real-time protocol trace facility
- Capture to RAM (for high-speed, high-utilization link traffic) or to disk (for moderate traffic)
- Real-time capture trace playback from RAM or disk
- Network interface level statistics (with throughput calculations)
- Virtual circuit level statistics
- Support for all links and protocols
- Network interface summary information
- Raw-mode display option
- Autodecode, which enables the automatic detection and decode of either LMI, Annex A, or Annex D protocols, in addition to manual decode selection
- Upper-level protocol encapsulation decode option, per RFC 1490
- Decode and display traffic in one of three modes (hex, ASCII, or EBCDIC)
- DLCI filtering, which enables you to configure a list of DLCIs whose traffic will be displayed in the data capture and helps you to focus on only the traffic that you want to examine
- Print utility that reads an FRTRACE capture file, converts the file contents from hex to ASCII, decodes the file contents for the link management protocol and RFC 1490 (if specified), and writes the contents to an output file that can be printed or viewed with an ASCII editor or browser
The command for this DOS executable file has the following format: FRDISP <saved_file> <output_file> /d, with the /d option causing a decode for the link management protocol and RFC 1490.
