The imaGroupRowStatus object allows create, change, and delete operations on imaGroupTable entries.

To create a new conceptual row (or instance) of the imaGroupTable, imaGroupRowStatus must be set to 'createAndWait' or 'createAndGo'. If settable, a successful set of the following objects must be performed before the imaGroupRowStatus of a new conceptual row can be set to 'active':

imaGroupMinNumTxLinks imaGroupMinNumRxLinks imaGroupTxImaId

Some objects in the imaGroupTable control settings which can only be established or changed at group start-up time. These objects include:

imaGroupTxImaId imaGroupSymmetry imaGroupTxFrameLength

To change (modify) the imaGroupTxImaId object, the manager must first set imaGroupRowStatus to 'notInService'. However, changes to the following two objects can be optionally allowed while the imaGroupRowStatus is 'active':

imaGroupSymmetry imaGroupTxFrameLength

These two objects can be changed when the imaGroupRowStatus is 'active' in order to allow the far-end to recover from its Config-Aborted state without having to force the near-end Group State machine to go to the 'Not Configured' state. Changing these object values after group start-up has completed causes a restart of the IMA group.

Alternatively, as noted above, the agent implementation may simply require the imaGroupRowStatus object to first be set to 'notInService' before allowing changes to either of these two objects.

To remove (delete) an imaGroupTable entry from this table, set imaGroupRowStatus to 'destroy'.

Setting the imaGroupRowStatus to 'active' has the effect of activating the Group Startup Procedure. The Group Startup Procedure uses provisioned links that have imaLinkRowStatus set to 'active' and imaLinkGroupIndex set to the imaGroupIndex in this conceptual row.

When the imaGroupRowStatus is not in 'active' state, the Group State machine is in its 'Not Configured' state.