Shelf

The Shelf object defines a group of adaptors controlled by a processor card. The VP3000 contains two shelves, one above the other, with a processor card in each. This arrangement means that you can achieve resilience and fault tolerance by using redundant resources in each of the two shelves. For example, you can have an MTP2 adaptor card active in each shelf, and use two MTP2 links to the same destination, one on each adaptor card; this means that, if one MTP2 adaptor card or one processor card fails, there is still a link to the destination using the other card.

This object is pre-configured (configuration information is delivered with the VP3000), and you cannot create or delete it, but the object provides status information about the shelf and its adaptors. There are two instances of this object for each VP3000 - Shelf A (the top shelf ) and Shelf B (the bottom shelf).

Each Shelf object is a child of the Media Gateway object.

Actions
Create Enable Activate
Delete Disable Deactivate
Apply Reset Statistics Refresh

Parameter

Access

Description
Segment number Read only The value 1 identifies the top shelf in the chassis; the value 2 identifies the bottom shelf.
Deactivation mode Change Specifies how child objects should be deactivated when deactivating this object. Values:
  • Normal (default)
    Shut down child objects normally before deactivating the object.
  • Quiesce
    Wait for existing child objects to become inactive before deactivating the object, but do not allow any new child objects to be activated.
  • Abort
    Deactivate the object and all its child objects immediately. (This may result in errors at remote systems.)
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 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.
Alarm state changed timestamp Read only The time (UTC) at which the Alarm state last changed.
Alarm events reset timestamp Read only The time (UTC) at which the Attention Required alarm events was last reset to zero.
Adaptor Attention Required alarms Read only The total number of Adaptors (and their child objects) associated with this Shelf that are in Attention Required state.
Adaptor Attention Required alarm events Read only / Reset The total number of Attention Required alarms for all Adaptors (and their child objects) associated with this Shelf.
Port Attention Required alarms Read only The total number of Ports (and their child objects) associated with this Shelf that are in Attention Required state.
Port Attention Required alarm events Read only / Reset The total number of Attention Required alarms for all Ports (and their child objects) associated with this Shelf.
Total child Attention Required alarms Read only The total number of child objects associated with this Shelf that are in Attention Required state.
Total child Attention Required alarm events Read only The total number of Attention Required alarms for all child objects associated with this Shelf.
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 Shelf. 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 Shelf. Values:
  • Active
    The object is active.
  • Going Active
    Activation is in progress.
  • Going Inactive
    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.