> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/mtp3.md). # MTP3 parameters MTP3 signalling links, point codes and routing. 50 parameters. ## A | Parameter | Description | | ----------------------- | ------------------------------------------------------------------------------------------- | | **Adjacent Point Code** | The Origin Point Code parameter is used to associate an object with an adjacent point code. | ## B | Parameter | Description | | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | **Bind Confirmation Timer** | Timeout for connection between an SS7 service access point. | | **Broadcast** | The Broadcast parameter is used when the MTP3 is configured as an STP and you want to forward the MTP3 management messages TFA/TFP/TFR. | | **BSN Request Timer** | As part of the changeover procedure on a link, MTP3 sends a status request to layer 2 to return the BSN for that link (Allowed values are from 100ms to 6500000ms. | ## D | Parameter | Description | | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Desired State** | The Desired State parameter indicates whether an object is to be active or inactive upon creation. | | **Discard Priority** | In networks supporting multiple levels of congestion, if a message is received by MTP3 with a priority less than the current congestion priority of the link (in case the link is congested), then the message is dropped. | ## F | Parameter | Description | | --------------------------------- | --------------------------------------------------------------------------------------------------------------------- | | **False Congestion Detect Timer** | This is the same as timer T31 in ANSI specification (Allowed values are from 100ms to 6500000ms. | | **Flow Control Request Timer** | MTP3 link polling timer to MTP2 link about flow control status. | | **Flush Continue Flags** | Specifies whether FLUSH BUFFER and CONTINUE requests are required to be sent to layer 2 on processor outage recovery. | ## L | Parameter | Description | | ----------------------------- | --------------------------------------------------------------------------------------------- | | **Layer 2 Connect Timer** | Used by MTP3 to periodically send a connect request to layer 2, if layer 2 is not responding. | | **Link Referral Craft Timer** | This is the same as timer T19 in the ANSI specification. | | **Link Type** | The Link Type parameter is used to set a protocol type for signaling links. | ## M | Parameter | Description | | ------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | | **Messages Priority** | Specifies the priority when sending MTP3 management messages. | | **Msg Q Len Prio0** | Priority 0 message queue length (ratio from 0 to 100) | | **Msg Q Len Prio1** | Priority 1 message queue length (ratio from 0 to 100) | | **Msg Q Len Prio2** | Priority 2 message queue length (ratio from 0 to 100) | | **Msg Q Len Prio3** | Priority 3 message queue length (ratio from 0 to 100) | | **MTP3 C Link** | Indicates whether the link is a C link (links between the mated STPs are C links) | | **MTP3 SLTA Timer** | Supervision timer for signalling the link test acknowledgement message (SLTA). | | **MTP3 Ssf Validation** | Determines whether every message is verified against the Ssf mask. | | **MTP3 T1 Timer** | Delay to avoid mis-sequencing on changeover timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T12 Timer** | Waiting for uninhibit ack timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T13 Timer** | Waiting for force uninhibit timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T14 Timer** | Waiting for inhibition ack timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T15 Timer** | Waiting to start signalling route set congestion test timer. | | **MTP3 T16 Timer** | Waiting for route set congestion status update timer. | | **MTP3 T17 Timer** | Delay to avoid an oscillation of the initial alignment failure timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T18 Timer** | Waiting for links to become available during restart timer. | | **MTP3 T19 Timer** | Waiting to receive all traffic restart timers. | | **MTP3 T2 Timer** | Waiting for changeover ack timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T21 Timer** | Waiting to restart traffic routed through an adjacent SP timer. | | **MTP3 T22 Timer** | Local inhibit test timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T23 Timer** | Remote inhibit test timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T26 Timer** | Waiting to repeat the "traffic restart waiting" message timer. | | **MTP3 T3 Timer** | Delay to avoid mis-sequencing on changeback timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T4 Timer** | Waiting for change-back ack (first) timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T5 Timer** | Waiting for change-back ack (second) timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 T7 Timer** | Waiting for link connection ack timer (Allowed values are from 100ms to 6500000ms. | | **MTP3 Transfer Restricted required** | Route management procedure for national networks. | ## P | Parameter | Description | | ------------------------------------ | ------------------------------------------------------------------------------------------------ | | **Periodic SLTM timer** | Interval timer for sending signalling link test messages (SLTM). | | **Priority** | Priority for the link inside the linkset. | | **Probation Link Oscillation Timer** | This is the same as timer T33 in ANSI specification (Allowed values are from 100ms to 6500000ms. | ## R | Parameter | Description | | --------------------- | --------------------------------------------------------------------------------------------------------------------------- | | **Restart Procedure** | The Restart Procedure parameter is used to indicate the standard by which a configuration will carry out a restart process. | | **Route to Adjacent** | The Route to Adjacent parameter is used when an MTP3 route is directed toward an adjacent network. | ## S | Parameter | Description | | ------------------------------------- | ------------------------------------------------------------------------------------------------------------- | | **Second Concerned Point Code** | | | **Service Point Code** | Destination point code of the remote service node. | | **Signaling Point Type** | The Signaling Point Type parameter indicates the intended purpose of an SS7 MTP3 layer object. | | **SLTM Maximum Retry** | Maximum number of SLTM message to retry before declaring the link DOWN | | **SSf Validation** | The SSf Validation parameter allows the activation of sub-service field validation for an MTP3 configuration. | | **Suspension Link Oscillation Timer** | This is the same as timer T34 in ANSI specification. | --- # Agent Instructions This documentation is published with GitBook. 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