220.127.116.11.3 Interpretation of Tower Encodings
These extensions change some details on how the tower encodings, as specified in [C706] Appendix L, are interpreted. All provisions specified in [C706] that are not specifically overridden here are assumed to be the same as specified in [C706].
Implementations of these extensions MUST ignore the network address portion of the tower. Therefore, the endpoint mapper MUST only accept interface registration of interfaces that are running locally on the machine.
As specified, [C706] allows for any number of floors in the tower encoding. Implementations of these extensions SHOULD reject towers with more than six floors.