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1) In IP networks, a network
that shares a particular subnet address. Subnetworks are networks arbitrarily
segmented by a network administrator in order to provide a multilevel,
hierarchical routing structure while shielding the subnetwork from the
addressing complexity of attached networks. Sometimes called a subnet.
See also IP address, subnet address, and subnet mask.
2)
In OSI networks, a collection of ESs and ISs under the control of a single
administrative domain and using a single network access
protocol.
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