US 10,257,097 B1Granted

Connection based selection of a network congestion control process

AssigneeEMC IP Holding Company LLC

InventorsVijayakumar Kandasamy, Karthikeyan Arunachalam

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Abstract

Connection based selection of a network congestion control process is presented herein. A system can comprise a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: storing communication congestion control procedures into a module of a kernel of the system; determining a connection attribute for a connection corresponding to a connection request received from a device; and selecting, via the module based on the connection attribute, a communication congestion control procedure of the communication congestion control procedures for servicing of the connection request. In an example, the determining the connection attribute comprises determining a round-trip time of the connection, determining a bandwidth-delay product of the connection, determining whether the connection is a wireless connection, and determining a bandwidth of the connection.

Claims20

Dependent claims

A system, comprising:

a processor;
and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
storing communication congestion control procedures to a module of a kernel of the system;
determining a connection attribute for a connection corresponding to a connection request received from a device;
and
selecting, via the module of the kernel and based on the connection attribute, a communication congestion control procedure of the communication congestion control procedures for servicing of the connection request, wherein the selecting comprises
in response to first determining, based on the connection attribute, that the connection comprises a high-speed link comprising a bandwidth that is greater than one gigabit per second and is associated with potential data packet loss due to respective transmission errors, first selecting, via the module of the kernel, a first transmission control protocol (TCP) procedure of the communication congestion control procedures for the servicing of the connection request, and
in response to second determining, based on the connection attribute, that duplicate acknowledgments (ACKs) have been received in the connection, second selecting, via the module of the kernel, a second TCP procedure of the communication congestion control procedures for the servicing of the connection request, wherein the first TCP procedure adjusts, based on a determined rate of ACKs that have been received via the connection, congestion control parameters comprising a congestion window of the connection, and wherein the second TCP procedure initiates a retransmission of data via the connection.

6 more elements

A method, comprising:

storing, by a system comprising a processor, congestion control routines in a fault tolerant portion of a memory of the system;
receiving, by the system, a connection request from a client device, wherein the connection request comprises a request to connect to a communication port of the system;
in response to the receiving the connection request, determining, by the system, a characteristic of a communication link between the system and the client device corresponding to the communication port;
and
based on the characteristic of the communication link, selecting, by the system via the fault tolerant portion of the memory, a congestion control routine of the congestion control routines for use to service the connection request via the communication link, wherein the selecting comprises
based on the communication link being determined to comprise a bandwidth that is greater than one gigabit per second and be associated with potential data packet loss due to respective transmission errors, first selecting, via the fault tolerant portion of the memory, a first transmission control protocol (TCP) routine of the congestion control routines and transmitting, using the first TCP routine, data between the system and the client device via the communication link, and
in response to duplicate acknowledgments (ACKs) being determined to have been received in the communication link, second selecting, via the fault tolerant portion of the memory, a second TCP routine of the congestion control routines and transmitting, using the second TCP routine, the data between the system and the client device via the communication link, wherein the first TCP routine adjusts, based on a rate of the ACKs being determined to have been received in the communication link, congestion control parameters comprising a congestion window of the communication link, and wherein the second TCP procedure triggers a retransmission of the data.

4 more elements

A computer-readable storage medium comprising instructions that, in response to execution, cause a server device comprising a processor to perform operations, comprising:

storing communication congestion control routines in a kernel of the server device;
receiving a connection request from a client device to establish a connection between the server device and the client device;
in response to determining a connection characteristic of the connection, choosing, based on the connection characteristic, a communication congestion control routine of the communication congestion control routines;
and
communicating, via the connection, data between the server device and the client device using the communication congestion control routine, wherein the choosing comprises
in response to a bandwidth of the connection being determined to satisfy a defined condition representing the connection corresponds to a high-speed link and a potential data packet loss due to respective transmission errors, first choosing, via the kernel, a first communication congestion control routine of the communication congestion control routines for the communicating the data between the server device and the client device using a Westwood transmission control protocol (TCP), and
in response to duplicate acknowledgements being determined to have been received, second choosing, via the kernel, a second communication congestion control routine of the communication congestion control routines for the communicating the data between the server device and the client device using a New Reno TCP.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/285,335Filed 4 Oct 2016
Granted: 9 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 47/193
At layers above the network layer: at the transport layer, e.g. TCP related
H04L 43/0852
Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters: delays
H04L 47/27
Flow control; Congestion control: evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
H04L 47/283
In relation to timing considerations: in response to processing delays, e.g. caused by jitter or round trip time [RTT]