Every node can be queried individually by service personnel via AMO. After the OpenScape 4000/HiPath 4000 network nodes have been booted and assuming the feature is activated (which it is as standard), establishment of the partner tables can be commenced automatically in each node following a stabilization period (approx. 5 min.). As the cross-node exchange of information is handled via the CorNet-NQ messages SETUP or CONNECT, the network must be carrying switching loads. The time taken until the complete topology is established depends on the load situation and the configuration of the ZAND Polling Timer.

The feature is designed in such a way that only long-term changes (of an order of magnitude of 10 min.) are detected and network performance is not impaired.

In this context, it must be noted that, although the automatic mechanism is started immediately in the case of newly configured lines / B-channel groups or activated lines, an entry is only initiated upon the presence of a switching load.

In the event of faults (interrupted/deactivated lines, defective or deactivated nodes), the entries are not deleted until after an intentional delay. A node is only deleted from the partner table automatically if it does not respond despite multiple repetitions, with the repetition interval likewise depending on the ZAND Polling Timer. A switching load has no effect on the deletion.