125 KNMAT - Administer node connection matrix


Definitions	Interrelationships	Parameter description
Functions	Functions of the AMO	Error messages and advisories

The AMO KNMAT administers the node connection matrix which is responsible for

•

restricting connections (for example for preventing network loops) and

•

modifying station numbers.

The node connection matrix is set individually at each network node: it is not identical across the entire network. These two separate functions are briefly explained below. The only thing they have in common is that both are based on the "node numbers". For KNMAT 2 kind of node numbers are to be used:

•

Virtual node numbers, which are configured by AMO KNDEF. Virtual nodes can extend over several physical nodes. Moreover, one physical node can comprise several virtual nodes.

•

Fictitious node numbers of PBXs which cannot handle the node numbers. These numbers are assigned to a circuit using one of the AMOs TDCSU, TACSU or TSCSU.

Physical node numbers as configured by AMO ZAND, parameter PNNO at each network node, are not to be used for the AMO KNMAT.

Note:

This AMO is used for network configuration. Reconfiguration measures during live operation can temporarily lead to implausibilities which, in turn, can disrupt operation.

For further definitions of network-relevant addresses and for examples of network configurations and cases where KNMAT applies for station number modification and the prevention of network loops, refer to the Service Manual (AMO Usage Examples/Networking). The explanation of the several kind of node numbers (e.g. virtual node number) can be found in chapter ’General Networking Terminology’ in the service manual.

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