US 6,188,670 B1 · Method and system in a data processing system for dynamically controlling transmission of data over a network for end-to-end device flow control

Abstract

A method and system provide end-to-end flow control between a sender and a receiver attached to a network. The data is divided into a plurality of packets. A priority hierarchy of a plurality of priority levels is established. Each packet of data is associated with one of the priority levels. Transmission of the plurality of packets is initiated from a transmitter to a receiver transmitting the plurality of packets in the priority hierarchy. The real-time data is divided into a plurality of frames. Each of the plurality of frame is divided into multiple packets. Each of the plurality of frames is stored in a frame buffer included within the receiver. During transmission, a level of a plurality of frames included within the frame buffer is monitored. In response to the level crossing a first buffer threshold, a determination is made as to whether a first plurality of the multiple packets are associated with a first priority level. In response, the priority level associated with the first plurality of the multiple packets is then modified to be a second priority level. Transmission is then continued where the first plurality of the multiple packets are transmitted utilizing only the second priority level.

Claims16

Dependent claims

A method in a data processing system for dynamically controlling end-to-end data flow over a network, wherein said data includes a plurality of packets to be transmitted, and wherein said data includes real-time and non-real-time data, said real-time data including a plurality of frames, each of said plurality of frames including multiple packets, said method comprising the steps of:

associating each of said plurality of packets with only one of a plurality of priority levels, said plurality of priority levels being established in a priority hierarchy;
initiating transmission of said plurality of packets from a transmitter to a receiver in said priority hierarchy;
storing said plurality of frames in a frame buffer included within said receiver;
during said transmission, monitoring a level of said plurality of frames stored within said frame buffer;
in response to said level of said plurality of frames crossing a first buffer threshold, determining if a first plurality of said multiple packets are associated with a first priority level;
in response to said first plurality of said multiple packets being associated with a first priority level, modifying said first priority level associated with each of said first plurality of said multiple packets, wherein each of said plurality of packets are associated with only a second priority level;
and
continuing transmission of said plurality of packets, wherein each of said first plurality of said multiple packets are transmitted utilizing said second priority level.

5 more elements

A data processing system for dynamically controlling end-to-end data flow over a network, wherein said data includes a plurality of packets to be transmitted, and wherein said data includes real-time and non-real-time data, said real-time data including a plurality of frames, each of said plurality of frames including multiple packets, comprising:

means for associating each of said plurality of packets with only one of a plurality of priority levels, said plurality of priority levels being established in a priority hierarchy;
means for initiating transmission of said plurality of packets from a transmitter to a receiver in said priority hierarchy;
means for storing said plurality of frames in a frame buffer included within said receiver;
means for during said transmission, monitoring a level of said plurality of frames stored within said frame buffer;
means responsive to said level of said plurality of frames crossing a first buffer threshold, for determining if a first plurality of said multiple packets are associated with a first priority level;
means responsive to said first plurality of said multiple packets being associated with a first priority level, for modifying said first priority level associated with each of said first plurality of said multiple packets, wherein each of said plurality of packets are associated with only a second priority level;
and
means for continuing transmission of said plurality of packets, wherein each of said first plurality of said multiple packets are transmitted utilizing said second priority level.

5 more elements

Dependencies are inferred from the claim text.

Method and system in a data processing system for dynamically controlling transmission of data over a network for end-to-end device flow control

Life of this patent

Method and system in a data processing system for dynamically controlling transmission of data over a network for end-to-end device flow control

Life of this patent

Abstract

Claims16