초록 ▼

Described is a system which includes at least one computer system connected to a main computer system via a data transmission network. The at least one computer system has a network connector for communicating data with the main computer. The network connector is supplied with auxiliary power and is

Described is a system which includes at least one computer system connected to a main computer system via a data transmission network. The at least one computer system has a network connector for communicating data with the main computer. The network connector is supplied with auxiliary power and is operative to communicate with the main computer regardless of whether the at least one computer system is in a normal operating state. The main computer includes a program for detecting when the at least one computer system has been disconnected from the data transmission network. The program sends a first packet to the at least one computer system via the network. The at least one computer system is operative to receive the first packet and respond by sending a second packet to the main computer. The second packet includes data which specifically identifies the at least one computer system.

대표청구항 ▼

[ What is claimed is:] [9.] A system comprising:a plurality of computer systems connected to a main computer system via a data transmission network,each of said plurality of computer systems having a network connector for communicating data with said main computer, said network connectors being supp

[ What is claimed is:] [9.] A system comprising:a plurality of computer systems connected to a main computer system via a data transmission network,each of said plurality of computer systems having a network connector for communicating data with said main computer, said network connectors being supplied with auxiliary power and being operative to communicate with said main computer regardless of whether a corresponding computer system is in a normal operating state,said main computer having means for determining whether each one of said plurality of computer systems has been disconnected from said data transmission network,said means includes a program which sends a first packet to each one of said plurality of computer systems via said network, each one of said plurality of computer systems being operative to receive said first packet and respond by sending a second packet to said main computer regardless of whether said plurality of computer systems are powered on, said second packet including data which specifically identifies said computer system sending the second packet, andwherein if said main computer does not receive said second packet from any one or more of said plurality of computer systems said main computer sends an alert message to a network administrator.