M3rl Options

The Message Transfer Part level 3 (MTP3) Options are configuration values that govern the overall MTP3 functionality.

The M3rl Options resources can only be updated and cannot be created or deleted.

Select the VSTP, and then Configuration, and then M3rl Options page. The page displays the elements on the M3rl Options View, Insert, and Edit pages.

Note:

Data Input Notes apply to the Insert and Edit pages only; the View page is read-only.

Table 5-38 M3rl Options Elements

Element Description Data Input Notes
CnvAInat This parameter sets the value of the called party/calling party address Reserved for National Use bit when the message is routed to the ITU national network. Default - 1 , Minimum,Maximum - 0,1
CnvCgda This parameter enables discarding of the CGPA point code in SCCP messages if the destination network type is Ansi, and the point code or alias point code of the destination network type is not defined.
CnvCgdi This parameter enables discarding of the CGPA point code in SCCP messages if the destination network type is Itui, and the point code or alias point code of the destination network type is not defined.
CnvCgdn This parameter enables discarding of the CGPA point code in SCCP messages if the destination network type is Itun, and the point code or alias point code of the destination network type is not defined.
CnvCgdn24 This parameter enables discarding of the CGPA point code in SCCP messages if the destination network type is Itun24, and the point code or alias point code of the destination network type is not defined.
CnvClgItu This parameter enables or disables the CGPA conversion for Itui/Itui_s/Itun/Itun_s domain crossing during SCCP conversion.
GtCnvDflt This parameter enables routing of SCCP messages using system defaults when an appropriate entry is not found in the Default GT Conversion Table.
Incoming SLS Bit Rotation This parameter indicates whether an Incomig SLS Bit Rotation is enabled or not.If it is turned on and Incoming SLS Bit Rotation is applied to an MSU then the outgoing SLS bit rotation is not applied for that MSU.
Linkset On Hold timer Link addition/deletion changeover timer duration. This timer introduces a delay to help prevent message mis-sequencing on link add/deletion. Typical value is 60. Range = 10,2000
Randsls Random SLS (signaling link selection).This parameter is used to apply random SLS generation on a per linkset basis.
Signaling Link Supervision Timer Supervision timer for signaling link test acknowledgement message. Typical value is 12000.Range = 4000,12000
Signaling Link Interval Timer Interval timer for sending signaling link test messages. Typical value is 30000.Range = 30000,90000
SlsRotation This parameter specifies whether the signaling link selector (SLS) of the incoming ANSI linkset is rotated before routing the messages to network. When set to true, 8 bit SLS of the incoming linkset is considered for bit rotation.
Slscnv This parameter is used as Per node SLS conversion indicator.
SlsReplace This parameter allows to replace the SLS for an ANSI message with a random generated SLS value by Random SLS feature
SlsocbEnabled This parameter turns on the Other CIC (Circuit Identification Code) Bit Used feature
Timer 10 Timer 10 - Wait to repeat signaling route set test (SRST) message. Typical value is 30000

Range = 20000,90000

Timer 11 Timer 11 - Transfer restricted; in milliseconds. Typical value is 30000

Range = 1000,90000

Timer 15 Timer 15 - Wait for repeat route set congestion test (RSCT). Typical value is 3000

Range = 200,4000

Timer 16 Timer 16 - Wait for route set congestion test (RSCT) updates. Typical value is 1400

Range = 200,3000

Timer 18 Timer 18 - Repeat transfer restricted (TFR) once by response method. Typical value is 10000

Range = 2000,20000

Timer 1 Timer 1 - Changeover delay. Also used as isolation timer for ITU MTP Restart. Typical value is 800

Range = 100,2000

Timer 2 Timer 2 - Wait for changeover acknowledgement (COA). Typical value is 1400

Range = 100,3000

Timer 3 Timer 3 - Time controlled diversion on changeback. Typical value is 800

Range = 100,2000

Timer 4 Timer 4 - Wait for changeback acknowledgement (CBA) #1. Typical value is 800

Range = 100,2000

Timer 5 Timer 5 - Wait for changeback acknowledgement (CBA) #2. Typical value is 800

Range = 100,2000

Timer 6 Timer 6 - Controlled reroute. Typical value is 800

Range = 100,2000

Timer 8 Timer 8 - Transfer prohibited (TFP) inhibit. Typical value is 800

Range = 500,2000

SparePCSupportEnabled Checks whether the support for ITUN-Spare and ITUI-Spare is enabled or disabled

You can perform edit task on VSTP>Configuration>M3rl Options page.

Editing a M3rl Option

Use this procedure to change the field values for a selected M3rl Option. :
  1. On the VSTP>Configuration>M3rl Options page, enter the updated values in the input fields.
  2. Click OK, Apply, or Cancel