Electrical computers and digital processing systems: multicomput – Network computer configuring – Initializing
Reexamination Certificate
1998-11-02
2002-05-07
Harrell, Robert B. (Department: 2154)
Electrical computers and digital processing systems: multicomput
Network computer configuring
Initializing
Reexamination Certificate
active
06385648
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to the field of data communications networks and, more specifically, the present invention relates to the method for initializing data communications network devices.
2. Background Information
Computer networks are used to interconnect many boxes or computing resources, such as for example computers, workstations, servers, printers, modems, storage devices and the like. For example, two or more computers may be connected together through a network. Network users are able to share files, printers and other resources, send messages and run applications on remote computers. An important part of any computer network includes the physical components or network communications devices used to interconnect the computing resources.
To illustrate, 
FIG. 1
 shows a plurality of networks 
111
, 
113
 and 
115
. In computing resources including boxes 
101
, 
103
, 
105
, 
107
 and 
109
 are interconnected through network 
111
. As illustrated in 
FIG. 1
, box 
107
 links network 
111
 to network 
113
 and box 
105
 links network 
111
 to network 
115
. As such, boxes 
105
 and 
107
 may be bridges, routers, switches or the like.
Computing resources in a network communicate with one another by using identifiers or addresses in accordance with the particular protocol used by the network. Therefore, when a box is added to a network, the box must be initialized with a network identifier or address so that it will be recognized by and can communicate with other computing resources in the network.
To illustrate, assume for example that network 
111
 uses the Transmission Control Protocol/Internet Protocol (TCP/IP) suite of communications protocols to interconnect resources on network 
111
. Accordingly, in order for a box, device, computing resource, etc. to be identified on network 
111
, each box must have an Internet protocol (IP) address. Networks using the TCP/IP protocol route messages based on the IP address of the destination.
FIG. 1
 shows that the IP address 
121
 of the box 
105
 is set using a configuration device 
117
. In some instances, configuration device 
117
 may be a feature on the back panel of box 
105
 enabling a network administrator to manually set the IP address 
121
 of box 
105
. In other instances, configuration device 
117
 may be a separate device that is coupled to box 
105
 using a serial connection 
119
. 
FIG. 1
 also shows that other configuration parameters of box 
105
 may be set using configuration device 
117
. These configuration parameters include subnet mask 
123
 and default gateway 
125
.
An inconvenience with the arrangement illustrated in 
FIG. 1
 is that whenever a box or computing resource is added to the network, the network administrator must manually set the network identifier before the box is recognized in the network. As a consequence, in some instances the network administrator must connect configuration device 
117
 through serial connection 
119
 to each box that must be initialized. In situations where more than one box is added to the network, the network administrator must separately initialize the network identifier of each box.
SUMMARY OF THE INVENTION
A method of initializing an uninitialized box in network is disclosed. In one embodiment, the method includes the step of broadcasting a service announcement over the network from a configuration utility. The service announcement is used to indicate to the uninitialized box that it may be initialized. After receiving the service announcement, the uninitialized box may transmit an acknowledgement message directed to the configuration utility or the network in response to the service announcement. The acknowledgement message directed to the configuration utility includes a unique identifier of the uninitialized box. Once the acknowledgement is received from the uninitialized box, the configuration utility broadcasts an initialization message over the network to the uninitialized box. The initialization message includes the unique identifier of the uninitialized box and a network identifier that the box can use to be recognized in the network. Additional features and benefits of the present invention will become apparent from the detailed description, figures and claims set forth below.
REFERENCES:
patent: 6105100 (2000-08-01), Dean et al.
Droms, R.: “Interoperation Between DHCP and BOOTP”, RFC 1534, Bucknell University, Oct. 1993.
Droms, R.: “Dynamic Host Configuration Protocol”, RFC 2131, Bucknell University, Mar., 1997.
Hannigan Kerry M.
Hoglund Gary W.
Philippou James A.
Blakely & Sokoloff, Taylor & Zafman
Harrell Robert B.
Nortel Networks Limited
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