Data processing system and method for transmission of a network packet specifying a group identifier identifying a selected plurality of clients

• US 6,405,259 B1
• Filed: 12/08/1998
• Issued: 06/11/2002
• Est. Priority Date: 12/08/1998
• Status: Expired due to Fees

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Ellison, Brandon J., Locker, Howard J., Cheston, Richard W., Cromer, Daryl C., Ward, James Peter, Desai, Dhruv M.
• Primary Examiner(s): Follansbee, John A.
• Application Number:
  US09/207,888
• Time in Patent Office: 1,281 Days
• Field of Search: 709/223, 709/245
• US Class Current: 709/245
• CPC Class Codes: H04L 12/1886 with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers

Abstract

A method and system are disclosed for transmitting a network packet which identifies only selected ones of a plurality of client computer systems. The client computer systems are coupled to a server computer system to form a network. A logical group is specified which includes only a first plurality of the plurality of client computer systems by specifying one of a plurality of group identifiers. A network packet is then transmitted utilizing the network to the logical group. The network packet includes the group identifier which identifies the logical group, wherein only the logical group are the intended recipients of the packet.

Claims

1. A method for efficient communication between a server and only selected client computer system types among a plurality of client computer system types coupled together utilizing a network, said method comprising the steps of:

specifying a logical group identifier which includes only client computer systems of a first operating system among said plurality of client computer system types;

transmitting a network packet throughout said network which includes said logical group identifiers;

filtering said network packet at client computer systems within said network to identify said logical group identifier, and

coupling said network packet to only those client computer systems of said first type wherein specific addresses of each client computer system of said first type within said network are not required prior to transmission.

2. The method according to claim 1 wherein said step of specifying a logical group identifier which includes only client computer systems of a first type among said plurality of client computer system types further comprises specifying a logical group identifier which includes only client computer systems utilizing a first network protocol among said plurality of client computer system types.

3. The method according to claim 1 wherein said step of specifying a logical group identifier which includes only client computer systems of a first type among said plurality of client computer system types further comprises the step of specifying a logical group identifier which includes only client computer systems within a first work group among said plurality of client computer system types.

4. The method according to claim 1 wherein said step of filtering said network packet at client computer systems within said network to identify said logical group identifier further comprises the step of providing a network controller including a special purpose processor and a filter to filter said network packet at client computer systems within said network to identify said logical group identifier.

5. The method according to claim 1 wherein said step of transmitting a network packet throughout said network which includes said logical group identifier further comprises the step of generating and transmitting a network packet including a modified magic packet and a data packet, said modified magic packet including a magic packet code identifying said network packet as a magic packet, a global network controller identifier, and said logical group identifier.

6. A data processing system for efficient communication between a server and only selected client computer system types among a plurality of client computer system types coupled together utilizes a network, said system comprising;

a server for specifying a logical group identifier which includes only client computer systems of a first operating system among said plurality of client computer system types;

means for transmitting a network packet throughout said network which includes said logical group identifier;

means for filtering said network packet at client computer systems within said network to identify said logical group identifier; and

means for coupling said network packet to only those client computer systems of said first type wherein specific addresses of each client computer system of said first type within said network are not required prior to transmission.

7. The system according to claim 6 wherein said means for specifying a logical group identifier which includes only client computer systems of a first type among said plurality of client computer system types further comprises means for specifying a logical group identifier which includes only client computer systems utilizing a first network protocol among said plurality of client computer system types.

8. The system according to claim 6 wherein said means for specifying a logical group identifier which includes only client computer systems of a first type among said plurality of client computer system types further comprises the means for specifying a logical group identifier which includes only client computer systems within a first work group among said plurality of client computer system types.

9. The system according to claim 6 wherein said means for filtering said network packet at client computer systems within said network to identify said logical group identifier further comprises a network controller including a special purpose processor and a filter to filter said network packet at client computer systems within said network to identify said logical group identifier.

10. The system according to claim 6 wherein said means for transmitting a network packet throughout said network which includes a logical group identifier comprises means for generating a network packet which includes a modified magic packet and a data packet, said modified magic packet including a magic packet code identifying said network packet as a magic packet, a global network controller identifier and said logical group identifier.