8-10 CHAPTER 8: ROUTING WITH APPLETALK TECHNOLOGY
About AARP The AppleTalk Address Resolution Protocol (AARP) maps the hardware
address of an AppleTalk node to an AppleTalk protocol address. AARP
maps for both extended and nonextended networks.
When a node on the network initializes, it randomly selects an AppleTalk
address for itself. At the same time, the node sends 10 AARP probe
packets. The probe packets determine whether any other nodes on the
network are using the selected address. If the address already exists, the
initializing node randomly selects another address and sends another set
of probe packets.
The AARP maintains an Address Mapping Table (AMT) with the most
recently used hardware addresses and their corresponding AARP
addresses. If an address is not in this table, AppleTalk sends a request to
the protocol address and adds the hardware address to the table when
the destination node replies. You view this table, called the AARP cache,
through the CoreBuilder 2500 Administration Console.
To Next Page
Loading...
