MTP 2 -> MTP 3
Notifies the application that a processor up or down event occurred, or that level 1 buffer depletion occurred. Level 1 buffer depletion indicates that incoming traffic exceeded the layer 3 ability to read it. The application may or may not be able to do anything to slow the incoming traffic, such as requesting the other side's layer 3 to slow down. A status response is not required for the buffer depletion indication.
The following table lists the message parameters:
Type |
Field |
Description |
U8 |
Message Type |
0x7A |
S16 |
Service User ID |
Application reference number for the link from Bind request. |
U8 |
Status |
The condition being reported. Possible values are: 0 = Remote processor down 1 = Remote processor up 2 = Level 1 buffer depletion |
U8 |
Value |
Buffer depletion level. Unused for processor status notifications. |