Library /sys$common/syshlp/ctf$help.hlb Tracepoints, OSITP tracepoints  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 OSITP CR MESSAGES shows all Connect Request protocol data units.

 OSITP ER MESSAGES shows all Error protocol data units.

 OSITP LSP <lsp_address or *> RSP <rsp_address or *> shows
     all protocol data units exchanged between the specified
     local and remote service providers.

     The form of an lsp_address or rsp_address is the 6-byte
     physical address, without hyphens:

     CTF> trace start "OSITP LSP AA00040089FF RSP 08002B112233"