System and method for transmitting data from a server application to more than one client node

• US 5,941,949 A
• Filed: 05/14/1997
• Issued: 08/24/1999
• Est. Priority Date: 05/14/1997
• Status: Expired due to Term

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Pedersen, Bradley J.
• Primary Examiner(s): Dinh, Dung C.
• Assistant Examiner(s): HO, CHUONG T
• Application Number:
  US08/856,051
• Time in Patent Office: 832 Days
• Field of Search: 395/200.79, 395/200.58, 395/200.49, 395/680, 395/200.57, 380/49
• US Class Current: 709/227
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications
• CPC Class Codes: H04L 12/1895 for short real-time information, e.g. alarms, notifications, alerts, updates
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The invention relates to a system and method for transmitting the same data to more than one client node substantially simultaneously. In one embodiment the invention relates to a method for transmitting the same data substantially simultaneously from an application executing on a server node to at least two client nodes. The method includes the steps of providing a connection between a first client node and a first client protocol stack and between the application and the first client protocol stack; associating a first minimal communications protocol stack with the first client protocol stack; providing a connection between the application and the first minimal communications protocol stack and between a second client node and a second client protocol stack; associating a second minimal communications protocol stack with the second client protocol stack; providing a connection between the first minimal protocol stack and the second minimal protocol stack; and between the second minimal protocol stack and said the client protocol stack. The method then transmits data from the application program to the first client protocol stack and the first minimal protocol stack substantially simultaneously.

Claims

1. A method for transmitting the same data substantially simultaneously from an application executing on a server node to at least two client nodes, each client node executing a generalized receiver program, the method comprising the steps of:

(a) providing a connection between a first client node and a first client protocol stack on said server node;

(b) providing a connection between said application executing on said server node and said first client protocol stack;

(c) providing a connection between said application executing on said server node and a first minimal communications protocol stack;

(d) providing a connection between a second client node and a second client protocol stack on said server node;

(e) providing a connection between said first minimal protocol stack and a second minimal protocol stack;

(f) providing a connection between said second minimal protocol stack and said second client protocol stack; and

(g) transmitting data from said application program to said first client protocol stack and said first minimal protocol stack substantially simultaneously.

2. The method of claim 1 wherein said connection between said first client protocol stack and said application program occurs through a multiplexer.

3. The method of claim 1 wherein said connection between said first minimal protocol stack and said application program occurs through a multiplexer.

4. The method of claim 1 wherein said connection between said second client protocol stack and said second minimal protocol stack occurs through a multiplexer.

5. The method of claim 1 further comprises the step of associating said first minimal communications protocol stack with said first client protocol stack.

6. The method of claim 1 further comprising the step of associating said second minimal communications protocol stack with said second client protocol stack.

7. The method of claim 1 further comprising the step of determining whether said application program is suitable for broadcast.

8. A communication system comprising:

a server node comprising;

an application program;

a first client protocol stack in electrical communication with said application program;

a first minimal protocol stack in electrical communication with said application program;

a second minimal protocol stack in electrical communication with said first minimal protocol stack; and

a second client protocol stack in electrical communication with said second minimal protocol stack;

a first client in electrical communication with said first client protocol stack; and

a second client in electrical communication with said second client protocol stack;

whereby said data from said application program is transmitted to said first client protocol stack and said first minimal protocol stack substantially simultaneously.