Bandwidth and latency controller

• US 8,255,536 B2
• Filed: 03/21/2008
• Issued: 08/28/2012
• Est. Priority Date: 03/21/2008
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Chen, Rong Chao
• Primary Examiner(s): Jaroenchonwanit, Bunjob
• Application Number:
  US12/053,267
• Publication Number:
  US 20090240808A1
• Time in Patent Office: 1,621 Days
• Field of Search: None
• US Class Current: 709/226
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 43/0882 Utilisation of link capacity
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/808 User-type aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements

Abstract

Systems and methods described relate to controlling bandwidth and latency in a remote computing environment. A controller establishes a remote session between a client and a remote server. Data transfer between the client and the remote server is routed through the controller. The controller regulates bandwidth consumption and latency in the remote session by simulating a session bandwidth that can be less than the available bandwidth and by injecting delays into data packets transferred in the remote session. Such systems and methods can be used to prioritize remote client sessions and test deployment of applications in a remote computing environment.

Claims

1. A server computer comprising:

a memory;

a processor operatively coupled to the memory; and

a controller stored in the memory and executed by the processor to control bandwidth distribution and latency in a remote computing environment, the controller including;

at least one bandwidth allocator that allocates a session bandwidth to a remote session between the server computer and a client device in the remote computing environment, based on a size of available bandwidth and a predetermined size of bandwidth for the client device, the session bandwidth allocated to test stability and functionality of an application over the remote session to determine at least one minimum bandwidth requirement for remote deployment of the application, the controller operating to test stability and working of one or more applications over the remote session under at least one condition of the allocated session bandwidth, wherein the testing is for development of one or more features of the one or more applications under a limitation of the allocated session bandwidth to determine that the one or more applications are stable when deployed remotely; and

at least one delay injector that injects one or more delays into one or more data packets transferred between the server computer and the client device when a bandwidth consumption in the remote session is greater than the allocated session bandwidth.

2. The server computer of claim 1, wherein the predetermined size of bandwidth is one of a predetermined percentage of the available bandwidth or a numerical value of bandwidth size.

3. The server computer of claim 1, wherein the bandwidth allocator allocates the session bandwidth as the predetermined size of bandwidth based on a determination that the predetermined size of bandwidth is less than the available bandwidth.

4. The server computer of claim 1, wherein the at least one bandwidth allocator determines one or more privileges associated with the client device and allocates the session bandwidth based on the one or more privileges.

5. The server computer of claim 1, wherein the controller sets up a path of communication between the server computer and the client device through the controller.

6. The server computer of claim 1, wherein the at least one delay injector injects the one or more delays into the one or more data packets to regulate an amount of data transferred in one or more time windows of the remote session.

7. The server computer of claim 1, wherein the controller monitors data traffic to track the one or more applications deployed in the remote session.

8. The server computer of claim 7, wherein the bandwidth allocator allocates the session bandwidth further based on a type of the one or more applications.

9. The server computer of claim 1, wherein the controller establishes the remote session with the client device by opening a new port or by establishing the remote session on a port used by a previously established remote session.

10. A method performed at a computing device for allocating bandwidth in a remote computing environment comprising:

under control of one or more processors with executable instructions, receiving a request from a client to establish a connection;

establishing the connection to the client using a port that is determined based at least in part on whether the client is in a user group;

determining available bandwidth for a remote session to the client;

determining one or more control settings corresponding to the client, the control settings including a predetermined bandwidth for the client;

allocating a session bandwidth to the remote session based on the predetermined bandwidth and the available bandwidth;

injecting one or more delays into one or more data packets forwarded to the client, when data traffic in the remote session exceeds the allocated session bandwidth; and

testing stability and working of one or more applications over the remote session under at least one condition of the allocated session bandwidth, wherein the testing is for development of one or more features of the one or more applications under a limitation of the allocated session bandwidth to determine that the one or more applications are stable when deployed remotely.

11. The method of claim 10, wherein establishing the connection includes connecting to a new port or a previously opened port.

12. The method of claim 10, wherein the determining the one or more control settings includes storing the one or more control settings from which the predetermined bandwidth can be ascertained.

13. The method of claim 10, further comprising forwarding the one or more data packets through a path regulated by a controller.

14. The method of claim 10, further comprising receiving one or more bandwidth and latency settings for the remote session, and applying the one or more bandwidth and latency settings to the remote session.

15. A method performed at a server computer, for regulating bandwidth and latency comprising:

under control of one or more processors with executable instructions, receiving a request for deploying one or more applications;

determining one or more control settings corresponding to the one or more applications;

regulating a session bandwidth associated with a remote session between a client device and the server computer;

testing stability and working of the one or more applications over the remote session under at least one condition of the regulated session bandwidth, wherein the testing is for development of one or more features of the one or more applications under a limitation of the regulated session bandwidth to determine that the one or more applications are stable when deployed remotely; and

injecting one or more delays into one or more data packets transferred during the remote session, to ensure that a rate of data transfer in the remote session conforms with the session bandwidth.

16. The method of claim 15, wherein determining the one or more control settings includes determining the session bandwidth allocated to the remote session and a resource requirement of the one or more applications.

17. The method of claim 15, wherein determining the one or more control settings includes allocating a higher session bandwidth while the one or more applications are deployed.

18. The method of claim 15, further comprising:

receiving one or more bandwidth and latency settings for the remote session; and

applying the bandwidth and latency settings to the remote session.