Legacy Document

Inside Macintosh: Networking /

Chapter 12 - Multinode Architecture / Using Multinode Architecture

Handling an AppleTalk Cable-Range-Change Transition Event

A cable range is a range of network numbers beginning with the lowest network number and ending with the highest network number defined by a seed router for a network. All node addresses, including multinode addresses, that a system on a network acquires must have a network number within the defined cable range.

An AppleTalk cable-range-change transition event occurs when the current cable range for a network changes. Your multinode application needs to be able to receive notifica-
tion of a cable-range-change transition and respond to that event by checking the new cable range to determine if all the multinode IDs that the application acquired before the transition event occurred are still valid. If you discover multinode IDs that are no longer valid, you must remove them with the RemoveNode function. You can obtain new multinodes to replace them with the AddNode function.