Media Gateway

The Media Gateway object provides an overall view of the NE's hardware. This object is pre-configured (configuration information is delivered with the NE), and you cannot create or delete it, but it provides status information about the hardware.

The Media Gateway object is a child of the MetaSwitch object.


Parameter

Access

Description
Call Agent IP address Read only The IP address of the Call Agent associated with this Media Gateway. This is configured through the NE craft interface, as described in the IS, CA and MG Craft Interface Guide.
Call Agent name Read only The name of the Call Agent associated with this Media Gateway. This name is displayed only when the Media Gateway has successfully established contact with the Call Agent and can determine its name.
TDM Protection Switching mechanism Change This field appears only for a VP3500 or MG3500. Specifies whether the NE uses the EPS3500 protection switching mechanism to provide backup for TDM links. Values:
  • None (default)
  • EPS3500
Packetization interval for internal RTP connections Change Specifies the intervals at which data on RTP connections internal to the switch is divided into packets. Values:
  • 5 milliseconds
  • 10 milliseconds (default)
Using the lower value reduces latency on calls between local subscribers, but increases the bandwidth required on connections between adaptors in the NE. If your existing system uses the higher value, please talk to your MetaSwitch support representative before changing it to use the lower value.
Required clock stratum Change Specifies the clock stratum at which the NE must operate in order to work correctly with the rest of the network. Values:
  • 3E
  • 3 (default)
  • 4
Primary clock master Read only The card type, controller, and slot number of the SG* adaptor acting as the primary master of the clocking.
Primary clock master - stratum Read only The clock stratum at which the primary clock master is currently operating. Values:
  • 3E
  • 3
  • 4
  • None
  • Unknown
    This status typically indicates a hardware error on the adaptor that is providing the primary clock master. To clear this status, you can remove and replace the adaptor.
Primary clock master - status Read only The status of the primary clock master. This field does not appear if Primary clock master - stratum is set to None. Values:
  • Locked onto reference 1
    The clock master is locked onto the first clock reference source.
  • Locked onto reference 2
    The clock master is locked onto the second clock reference source.
  • Holdover mode
    The clock master cannot access either reference source, but is running on its internal clock which has previously been locked on to one of the reference sources.
  • Free running mode
    The clock master has not yet been able to access a clock reference source, but is running on its internal clock.
  • Unknown
    The clock master's status cannot be determined. This status is normal if the clock master is an SG1000 adaptor, which does not report status information. For an SG1100 or SG1200 clock master, this typically indicates a hardware error on the adaptor; to clear this status, you can remove and replace the adaptor.
Primary clock master - end of range alarm Read only Specifies whether the primary clock master is reporting an End of Range (EOR) alarm. This field does not appear if Primary clock master - stratum is set to None. This alarm occurs when the clock master is locked on to a reference source, but at a frequency at the end of its accessible range; this may indicate a network problem or a hardware error on the adaptor. Values:
  • Clear
  • Alarmed
  • Unknown
    This status is normal if the clock master is an SG1000 adaptor, which does not report status information. For an SG1100 or SG1200 clock master, this typically indicates a hardware error on the adaptor; to clear this status, you can remove and replace the adaptor.
Secondary clock master Read only The card type, controller, and slot number of the SG* adaptor acting as the secondary master of the clocking. In a VP3500 or MG3500, this card cannot be on the same shelf as the primary clock master; if one shelf does not contain an active SG* adaptor, there will be no secondary clock master.
Secondary clock master - stratum Read only The clock stratum at which the primary clock master is currently operating. Values:
  • 3E
  • 3
  • 4
  • None
  • Unknown
    This status typically indicates a hardware error on the adaptor. To clear this status, you can remove and replace the adaptor.
Secondary clock master - status Read only The status of the secondary clock master. This field does not appear if Secondary clock master - stratum is set to None. Values are the same as for Primary clock master - status above.
Secondary clock master - end of range alarm Read only Specifies whether the secondary clock master is reporting an End of Range (EOR) alarm. This field does not appear if Secondary clock master - stratum is set to None. This alarm occurs when the clock master is locked on to a reference source, but at a frequency at the end of its accessible range; this may indicate a network problem or a hardware error on the adaptor. Values:
  • Clear
  • Alarmed
  • Unknown
    For an SG1100 or SG1200 clock master, this typically indicates a hardware error on the adaptor; to clear this status, you can remove and replace the adaptor.
Clock reference 1 Read only The port providing the external clocking source for the first clock reference.
Clock reference 1 - status Read only The status of the first clock reference. Values:
  • Available
  • Alarmed
  • Alarmed on Primary only
  • Alarmed on Secondary only
  • Unknown
    The status cannot be determined. This status is normal if the clock master is an SG1000 adaptor, which does not report status information. For an SG1100 or SG1200 clock master, this typically indicates a hardware error on the adaptor; to clear this status, you can remove and replace the adaptor.
  • Not applicable
Clock reference 2 Read only The port providing the external clocking source for the second clock reference. In a VP3500 or MG3500 this cannot be on the same shelf as clock reference 1, unless the primary clock master and clock reference 1 are on the same SG* adaptor. To ensure that separate clock references 1 and 2 can be set up, you are recommended to ensure that at least one port on each shelf is configured as a clock reference.
Clock reference 2 - status Read only The status of the second clock reference. Values:
  • Available
  • Alarmed
  • Alarmed on Primary only
  • Alarmed on Secondary only
  • Unknown
    The status cannot be determined. This status is normal if the clock master is an SG1000 adaptor, which does not report status information. For an SG1100 or SG1200 clock master, this typically indicates a hardware error on the adaptor; to clear this status, you can remove and replace the adaptor.
  • Not applicable
Congestion - system load Read only The congestion level of the media gateway. This is typically around 10% in normal conditions. A higher value means that the media gateway is overloaded (in terms of its capacity to set up and tear down calls). 100% indicates the gateway's maximum tolerated level of overload; when the gateway reaches this level, the Call Agent can no longer use it to set up any new calls.
Congestion - RTP resources Read only The congestion level of the media gateway's RTP resources, expressed as a percentage of its total capacity. A sudden jump in this value may indicate that a piece of hardware has failed or has been deactivated.
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 state changed timestamp Read only The time at which the Alarm state last changed.
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 this field 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 this field 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.
Line Cards Attention Required alarms Read only The total number of Attention Required alarms for the Line Cards child object of this Media Gateway (and its child objects).
Line Cards Attention Required alarm events Read only / Reset The total number of times that the alarm state for the Line Cards child object of this Media Gateway (or one of its child objects) has gone to Attention Required.
Line Cards Attend To Dependent alarms Read only The total number of Attend To Dependent alarms for the Line Cards child object of this Media Gateway (and its child objects).
Line Cards Attend To Dependent alarm events Read only / Reset The total number of times that the alarm state for the Line Cards object (or one of its child objects) has gone to Attend To Dependent.
Virtual Ports Attention Required alarms Read only The total number of Attention Required alarms for the Virtual Ports child object of this Media Gateway (and its child objects).
Virtual Ports Attention Required alarm events Read only / Reset The total number of times that the alarm state for the Virtual Ports object (or one of its child objects) has gone to Attention Required.
Virtual Ports Attend To Dependent alarms Read only The total number of Attend To Dependent alarms for the Virtual Ports child object of this Media Gateway (and its child objects).
Virtual Ports Attend To Dependent alarm events Read only / Reset The total number of times that the alarm state for the Virtual Ports object (or one of its child objects) has gone to Attend To Dependent.
Signaling Cross Connect Attention Required alarms Read only The total number of Attention Required alarms for Signaling Cross Connect child objects of this Media Gateway.
Signaling Cross Connect Attention Required alarm events Read only / Reset The total number of times that the alarm state for a Signaling Cross Connect child object has gone to Attention Required.
Signaling Cross Connect Attend To Dependent alarms Read only The total number of Attend To Dependent alarms for Signaling Cross Connect child objects of this Media Gateway.
Signaling Cross Connect Attend To Dependent alarm events Read only / Reset The total number of times that the alarm state for a Signaling Cross Connect child object has gone to Attend To Dependent.
Connected Hardware Attention Required alarms Read only The total number of Attention Required alarms for the Connected Hardware child object of this Media Gateway (and its child objects).
Connected Hardware Attention Required alarm events Read only / Reset The total number of times that the alarm state for the Connected Hardware object (or one of its child objects) has gone to Attention Required.
Connected Hardware Attend To Dependent alarms Read only The total number of Attend To Dependent alarms for the Connected Hardware child object of this Media Gateway (and its child objects).
Connected Hardware Attend To Dependent alarm events Read only / Reset The total number of times that the alarm state for the Connected Hardware object (or one of its child objects) has gone to Attend To Dependent.
Total child Attention Required alarms Read only The total number of child objects associated with this Media Gateway that are in Attention Required state.
Total child Attention Required alarm events Read only / Reset The total number of times that the alarm state for any child object of this Media Gateway has gone to Attention Required.
Total child Attend To Dependent alarms Read only The total number of child objects associated with this Media Gateway that are in Attend To Dependent state.
Total child Attend To Dependent alarm events Read only / Reset The total number of times that the alarm state for any child object of this Media Gateway has gone to Attend To Dependent.
Summary child alarm state Read only Summarizes the alarm status for all children of this object. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - one or more child objects are not operating normally, and need operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which one or more child objects depend is not operating normally.
Requested status Read only Specifies whether an administrator has attempted to activate the Media Gateway. 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 Media Gateway. 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.