RJ-45:The name for the connector type used with UTP cabling.

Subnetwork: Small discrete physical networks connected via gateways which share the same network address space. Refer to the Installing and Administering LAN/9000 Software manual for detailed information about subnetworks and subnet addressing.

Subnet mask: A 32-bit mask which, when AND'd with an internet address, determines a subnetwork address. When the internet address is AND'd with the subnet mask, the ones in the host portion of the subnet mask will “overwrite” the corresponding bits of the host portion of the internet address, resulting in the subnet address. Refer to the Installing and Administering LAN/9000 Software manual for detailed information about subnet masks.

Switch: A network interconnection device that allows multiple connected senders and receivers to communicate simultaneously in contrast to a hub (repeater) where only one device can send at a time. Some switches have fixed port speeds (10

Mbit/s or 100 Mbit/s) while others allow port speeds to be configured or autonegotiated.

Topology: The physical and logical geometry governing placement of nodes in a computer network. Also, the layout of the transmission medium for a network.

UTP (Unshielded Twisted Pair) Cabling: A data cable type consisting of pairs of wires twisted together without an electrically shielding jacket.

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