subnet number

subnet number

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subnet ID

The second part of a TCP/IP address that defines the subnetwork in which the device resides. The subnet ID number is shared with the host ID. See subnet mask and subnet mask tables.
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As expected, a collision may occur, and subnet number with a higher index substitutes for a subnet with a lower index based on the processing order of the nodes.
The same applies in a Layer 3 switch; it looks at the globally unique destination IP subnet number or IPX network number in order to forward traffic.
After subnetting is put in effect for a given network, individual LANs can be given their own subnet number within a given network number.