2.2 Message Syntax

This protocol places the following syntax restrictions on [RFC2371] specification:

• TIP command line restrictions:

  • Messages received by this protocol restrict the TIP command line specified in [RFC2371] section 11, as follows:

    • The TIP command line MUST NOT cross 1,024 character boundaries.

  • Messages sent by this protocol MUST restrict the TIP command line specified in [RFC2371] section 11, as follows:

    • A message MUST contain at most one TIP command line.

    • The TIP command line MUST NOT exceed 1,024 characters.

• Transaction identifier restrictions:

  • A transaction identifier created by this protocol MUST restrict the TIP transaction identifier specified in [RFC2371] section 5 to the following Augmented Backus-Naur Form (ABNF)

   OleTxTipTransactionIdentifier 
       = %x4F %x6C %x65 %x54 %x78 "-" LowerCaseUUID
  

  where LowerCaseUUID is defined to be the same as the glossary term GUID with the restriction that alpha characters MUST be lowercase. For example: OleTx-725d5246-2217-11dc-8314-0800200c9a66.

• Transaction manager address restrictions:

  • A transaction manager address created by this protocol MUST restrict the transaction manager address specified in [RFC2371] section 7 to the following ABNF

   %x74 %x69 %x70 %x3A %x2F %x2F HostName %x2F
  

  where HostName is defined to be one of the following:

  • A computer name with the restriction that the first character cannot be an underscore or a number.

  • An IPv4 address in string format.

The following subsections specify which TIP command parameters have the preceding syntax restrictions. These subsections include only those TIP commands that place restrictions as specified in [RFC2371].