Key Terms

Review the following list of key terms:

• bridge— A connectivity device that forwards data based on physical address.

• cut-through switching— A switching method that causes the switch to start forwarding the frame as soon as it obtains the destination address.

• dynamic routing— A routing method in which routing information is supplied dynamically through routing protocols.

• hub— A connectivity device to which network cables are attached to form a network segment. Hubs typically do not filter data and instead retransmit incoming frames to all ports.

• intelligent hub— A hub capable of performing additional tasks such as blocking off a port when a line problem is detected.

• multihomed computer— A computer with multiple network adapters.

• router— A connectivity device that forwards data based on logical address (IP address, in the case of TCP/IP).

• routing table— A table within the router that relates network IDs to network paths.

• static routing— A routing method in which the routing information is input manually by the network administrator.

• store and forward switching— A switching method that causes the switch to receive the entire frame before retransmitting.

• switch— A connectivity device. A switch is aware of the address associated with each of its ports and forwards each incoming frame to the correct port. Switches can base forwarding decisions on a variety of parameters encapsulated in the headers of the protocol stack.