A GroupTerminationPoint (GTP) is simply a list of CTPs in the same ME.
GTPs can be cross connected.
Either the EMS or the NMS can create a GTP. In the case of EMS initiated creation, the NMS would receive an Object Creation notification. The GTP can be modified by the NMS (via modifyGroupTerminationPoint()) or the EMS.
The CTPs comprising a GTP need not have to be contiguous and need not to be at the same layer rate.
All the CTPs in a GTP are either bidirectional or unidirectional. Note that every CTP in a GTP must have the same TPConnectionState and be in the same network access domain. 
GTP names are set by the EMS and must be unique within an ME.
A GTP can serve as an end point as well as an interior point of an SNC. However, a GTP is not a CTP.
For further information refer to attached supporting document on bundled SNCs.

Object Lifecycle: Created and deleted by EMS or NMS.

Object Creation Notification Issued? Yes
Object Deletion Notification Issued? Yes
