MTP 2 -> MTP 3
Notifies the layer 3 application of an MSU (message signal unit) received on the specified data link.
The following table lists the message parameters:
Type |
Field |
Description |
U8 |
Message Type |
0x16 |
S16 |
Service User ID |
Application reference number for the link from Bind request. |
Variable |
Data |
Contents of the received MSU. The first byte of data is typically the SIO (service information octet), followed by the routing label, and protocol dependent data. Layer 2 strips the flags, sequence number, length indicator, and frame check sequence. The maximum length of the data field is 274 octets including the SIO. There is no field to specify the length of the data field. The application derives the length of the data from the message start and end offsets in the message. |