Due to the physical nature of Sites, devices may exist in only one network and one site . This is logical, considering that a switch or router can physically exist in only one rack, in one room, on one floor, in one building, and in one geography at any time. However, symbolic links for any device can be placed in other sites or networks. This allows connected neighboring devices (that may exist in other networks or sites) to be accessible in the local site, for management convenience.
Security for managing symbolically-linked devices comes from the original device, or its primary network. Therefore, a user with no permissions to a device or its primary network, would visually see that device symbolically-linked in another network site, but they will not be able to view or manage that device.
See Network Security for more information on device security.