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Implementing WINS
In this environment, when CLIENT_PC1 wants to communicate with CLIENT_PC2, it
queries the WINS server for the address of CLIENT_PC2. Upon receipt of the address, it
goes directly to CLIENT_PC2 without broadcasting. Because the name queries go directly
to the WINS server, p-node avoids loading the network with broadcasts. Because broad-
casts are not used and because the address is received directly, computers can span
routers.
The most significant problem with the p-node mode is the following:
If the WINS server is down, computers that rely on the WINS server to resolve
addresses cannot get to any other systems on the network.
All computers must be configured to know the address of the WINS server.
M-Node (Multi-Node)
The m-node mode was created primarily to solve the problems associated with b-node and
p-node. In an m-node environment, a computer first attempts registration and resolution
using b-node. If that fails, it switches to p-node.
The advantages of the m-node mode are the following:
The m-node can cross routers.
Because the b-node always is tried first, computers on the same side of a router
continue to operate as usual if the WINS server is down.
In theory, it should increase local area network (LAN) performance.
H-Node (Hybrid Node)
The h-node mode solves the most significant problems associated with broadcast
messages and with routed-environment operations. It is a combination of b-node and
p-node that uses broadcast messages as a last effort. The h-node mode does more than
change the order for using b-node and p-node. If the WINS server is down — making
broadcast messages a necessity — the computer continues to poll the WINS server. When
the WINS server can be reached again, the system returns to p-node.
Because p-node is used first, no broadcast messages are generated if the WINS server is
running, and computers can be on opposite sides of routers. If the WINS server is down,
b-node is used allowing computers on the same side of a router to continue to operate as
usual.
i
Product Manual
For Microsoft TCP/IP users who configure TCP/IP manually, h-node is used by
default unless the user does not specify addresses for WINS servers when
configuring TCP/IP.
Name Resolution Services
U7613-J-Z815-6-76
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Table of Contents
Troubleshooting
