Information Technology Reference
In-Depth Information
Figure13-2 The VINES Address Format
1
32 33
48
Network number
Subnet number
(Server number)
(Host number)
The network number identifies a VINES logical network, which is represented as a two-level tree with
the root at a service node. Service nodes, which are usually servers, provide address resolution and
routing services to clients, which represent the leaves of the tree. The service node assigns VIP addresses
to clients.
When a client is powered on, it broadcasts a request for servers. All servers that hear the request respond.
The client chooses the first response and requests a subnetwork (host) address from that server. The
server responds with an address consisting of its own network address (derived from its key),
concatenated with a subnetwork (host) address of its own choosing. Client subnetwork addresses are
typically assigned sequentially, starting with 8001H. Server subnetwork addresses are always 1. The
VINES address selection process is shown in Figure 13-3.
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