Signaling Cross Connect

The Signaling Cross Connect object defines the association between a physical DS0 connection and the MTP2 Resource that processes the signaling data received on this connection. It is a child of the Signaling Cross Connects object.

For initial configuration, set the following parameters:

During initial link setup and testing, you may also want to use the Run in loopback mode parameter to configure the NE for running a Bit Error Rate Test on the new link.


If the DS0 that you intend to use for a Signaling Cross Connect has previously been used by an ISUP Circuit Group, you need to make sure the ISUP Circuit Group is no longer using it, then deactivate the DS1 Port and re-activate it (in order to free the DS0 for use by MTP2) before you configure the Signaling Cross Connect to use this DS0. In the ISUP Circuit Group, the DS1 Port is identified by the TDM port parameter (representing the Call Agent's view of the DS1 Port on the Media Gateway), and the DS0s used by the Circuit Group are identified by the Base CIC and Number of circuits parameters.


Parameter

Access

Description
M2UA identifier Change An identifier for this link at the MTP2 User Adaptation Layer (M2UA), which is used to associate the Cross Connect with a Signaling Link. Specify a name of up to 32 ASCII characters, which must not match any other M2UA identifier on this Media Gateway.
MTP2 Protocol Profile Change Inactive MTP2 Protocol Profile to associate with the Cross Connect. Select from the displayed list of profiles. This field defaults to the default MTP2 Protocol Profile.
MTP2 Resource Change Inactive Name of the MTP2 Resource which will be used to terminate the MTP2 DataLink. Select from the displayed list of MTP2 Resources.
MTP2 DataLink Change Inactive Identifies a DS0 carrying the MTP2 signaling data associated with this Cross Connect. Click on the ellipsis symbol at the end of the field to select from the configured adaptors, then from DS3s on that adaptor (if applicable), then from DS1s on the selected DS3 or adaptor, and then from DS0s on the selected DS1. Note that the list of DS1s excludes any that have Clock Reference set to BITS.
Run in loopback mode Change Inactive Specifies whether this Cross Connect is looping back SS7 signaling traffic in order to run a Bit Error Rate Test. You must deactivate and disable the Signaling Cross Connect before you can change this parameter. Values:
  • True
    The link is running in loopback mode. The NE sends back all received SS7 signaling data unchanged (so that the sender can check it for errors against the original sent data), and does not attempt to process it.
  • False (default)
    The link is running in normal operational mode.
Alarm state Read only Specifies whether any alarms are currently raised for this object. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - the object is not operating normally, and needs operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which this object depends is not operating normally.
Alarm log correlator - Attention Required Read only Identifier of the log message for the event that caused the last Attention Required alarm state for this object. This field is reset when the Attention Required alarm events field is reset to zero.
Attention Required alarm events Read only / Reset Number of times (since the alarm count was reset) that this object's alarm state has gone to Attention Required.
Attention Required alarm events reset timestamp Read only The time at which the Attention Required alarm events was last reset to zero.
Alarm log correlator - Attend To Dependent Read only Identifier of the log message for the event that caused the last Attend To Dependent alarm state for this object. This field is reset when the Attend To Dependent alarm events field is reset to zero.
Attend To Dependent alarm events Read only / Reset Number of times (since the alarm count was reset) that this object's alarm state has gone to Attend To Dependent.
Attend To Dependent alarm events reset timestamp Read only The time at which the Attend To Dependent alarm events was last reset to zero.
Alarm state changed timestamp Read only The time at which the Alarm state last changed.
Diagnostics - logging - log level Change Specifies the level of logs recorded for this object. Logs with a priority equal to or greater than the priority specified are recorded. Set to Default level to use the system-wide default level. Values:
  • Level 10 (diagnostics)
  • Level 20 (verbose statistics)
  • Level 30 (verbose operational)
  • Level 40 (statistics)
  • Level 50 (audit)
  • Level 60 (operational)
  • Level 70 (unexpected)
  • Level 80 (error)
  • Level 90 (fatal)
  • Default level (default)
Diagnostics - API trace - enabled Change Specifies whether API tracing is enabled for this object. Values:
  • True
  • False (default)
Diagnostics - API trace - trace tag Change An optional diagnostics tag inserted into API tracing and PD logging for this object. This tag may include any ASCII characters.
Requested status Read only Specifies whether an administrator has attempted to activate the Signaling Cross Connect. Values:
  • Active
    The object has been activated.
  • Inactive
    The object has not been activated or has been deactivated.
  • Disabled
    The object has been disabled.
Actual status Read only Specifies the current status of the Signaling Cross Connect. Values:
  • Active
    The object is active.
  • Activating
    Activation is in progress.
  • Deactivating
    Deactivation is in progress.
  • Inactive
    The object is inactive.
  • Disabled
    The object has been disabled.
  • Activation Failed
    The object is inactive because an activation attempt has failed.
  • Failed
    The object was active but has failed.
  • Quiescing
    The object is preparing for normal deactivation. It is operating normally but will not accept any new users.
  • Waiting For Parent
    The object cannot be used because its parent object is not yet active.
  • Parent Failed
    The object cannot be used because its parent object has failed.