Status indication

Direction

MTP 2 -> MTP 3

Description

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.