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There are four types of node defined in NBT: the B, P, M, and
H node. The B node issues a broadcast on the network every time it
needs to locate a computer on the network that owns a given NetBIOS
computer name. A P node uses point-to-point directed calls to a
known NetBIOS name server, which will reply with the node address of
a specified computer name. The M node is a mixture of B and P node
operation. An M node will first issue a broadcast to locate a
machine, and if that fails, it will query an identified name server.
The H node does things the other way around, i.e., it will contact a
known name server first, and if that fails, send out a broadcast to
locate a host. |
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