Cable Management Improvement

There are several limitations in GLPI 10 regarding cable & socket management:

1. You cannot define sockets with both front and rear contacts (this is required by patch panels)
2. Impact analysis does not consider cables (it considers connections only)
3. PDU plugs cannot be connected to assets (computers, network devices, etc)
4. Lines cannot be connect

So here is my proposal:

1. Sockets always have front & rear ports
2. Currently connections can only be established between
   • Network ports
   • USB devices and computers
     This needs to be expanded to allow
   • Network ports to socket (specifying if rear or front port is used)
   • Lines to network ports & sockets
   • Socket to socket (this is the case of connecting patch panels with rooms)
   • PDU plug to asset
   • PDU plug to PDU plug (to connect a power rail to a UPS plug)
3. Cables should be optional attributes of a connection (for those having numbered cables)
4. Impact analysis should show socket names, port numbers, and cable names (probably when clicking the connection line)

This can be done by other tools (such as netbox), but having it integrated in GLPI would be superb.

Also reported in forum https://forum.glpi-project.org/viewtopic.php?id=292630