Effects of cordon link changes

Editing the cordon links (Fundamentals: Main nodes) of a main node (create or delete) or the allocations of nodes to main nodes (Finding a main node) can have an effect on the network and other network objects.

However, modifications of inner links, nodes and turns, or the deletion of these objects do not have an effect on the network or other network objects.

Modification	Impact
Creating a cordon link	If you create a new cordon link, two new main turns will be generated from the new cordon link to each existing cordon link. Based on the turn standards, they provided with default values (Managing turn standards).
Deleting a cordon link	If you delete a cordon link, all associated main turns will also be deleted.
Adding a node to a main node	Reassigning a node to a main node has the following effect: All links originating from this node which lead to nodes that were already assigned to a main node turn into inner links (Fundamentals: Main nodes). All links originating from this node which do not lead to nodes that were already assigned to a main node turn into new cordon links. Main turns between cordon links that were not edited persist. Main turns from new cordon links to existing cordon links will be generated and preset with data based on the turn standards. If no nodes were assigned to the main node beforehand, the turns will be preset with data based on shortest paths. Main turns from existing cordon links to inner links will be deleted.
Removing nodes from a main node	Removing a node from a main node has the following effect: All links originating from and leading to this node will turn into new cordon links. All links originating from this node which lead to nodes that are not assigned to a main node turn into outer links. Main turns between cordon links that were not edited persist. Main turns from new cordon links to existing cordon links will be generated and preset with data based on the turn standards. Main turns from existing cordon links to outer links will be deleted.