Section: 12.3.11 Discovery of the support of the feature by the peer node
Content: A GTP-C entity shall determine whether to use the overload control feature: - within the PLMN, based on operator's policy (local PLMN-wide configuration); - across the PLMN boundaries, based on operator's policy (local configuration per PLMN). NOTE: The feature can be activated when all or some of the nodes in the PLMN support the feature. The GTP-C entity assumes that all the peer nodes support this feature when the feature is activated, i.e. it does not need to determine which peers support the feature. The above operator policy/local configuration may allow the use of overload control at node level and APN level, or none.