Systems and methods for allocation of classes of service to network connections corresponding to virtual channels

• US 9,288,137 B2
• Filed: 05/09/2011
• Issued: 03/15/2016
• Est. Priority Date: 05/09/2010
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Pedersen, Bradley J.
• Primary Examiner(s): Winder, Patrice
• Assistant Examiner(s): TRAN, NAM T
• Application Number:
  US13/103,318
• Publication Number:
  US 20110276699A1
• Time in Patent Office: 1,772 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/193 at the transport layer, e.g. TCP related
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/2475 for supporting traffic characterised by the type of applications
• CPC Class Codes: H04L 47/27 Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
• CPC Class Codes: H04L 47/621 Individual queue per connection or flow, e.g. per VC
• CPC Class Codes: H04L 47/6215 Individual queue per QOS, rate or priority
• CPC Class Codes: H04L 47/781 Centralised allocation of resources
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 47/808 User-type aware

Abstract

A system for allocating a different class of service to each network connection in a plurality of network connections, where each network connection corresponds to one or more virtual channels. The system can include a plurality of virtual channels that connect a first computer and a second computer. Each virtual channel can service at least a portion of the network traffic generated using a remote-display protocol. The system can also include a plurality of network connections, where each network connection corresponds to at least one of the virtual channels. Each network connection of the system can have an assigned port number and an assigned class of service that corresponds to a transmission priority level. The class of service assigned to each network connection can be unique from the classes of service assigned to other network connections.

Claims

1. A system for allocating a different quality of service to each network connection in a plurality of network connections, where each network connection corresponds to one or more virtual channels, the system comprising:

a first computing device; and

a second computing device in communication with the first computing device via a remote-display protocol session, the remote-display protocol session comprising a plurality of virtual channels, each servicing at least a portion of network traffic of the remote-display protocol session,

a plurality of transport layer network connections comprising a network connection between the first computing device and the second computing device, a first transport layer network connection carrying a first virtual channel and assigned a first quality of service, the first virtual channel configured to transmit remote display protocol data via the first transport layer network connection responsive to the first quality of service and one of an application type and a user of the data, and a second transport layer network connection carrying a second virtual channel and assigned a second quality of service, the second quality of service different from the first quality of service; and

an intermediary device to perform network prioritization on the plurality of transport layer network connections, wherein a priority of the second virtual channel corresponding to the second quality of service is assigned responsive to a content type, the content type comprising at least one of voice, video, and audio content.

2. The system of claim 1, wherein the first transport layer network connection is assigned a first port number and the second transport layer network connection is assigned a second port number, the second port number different from the first port number.

3. The system of claim 2, wherein the first port number is based on the type of data communicated via the first virtual channel carried by the first transport layer network connection, and wherein the second port number is based on the type of data communicated via the second virtual channel carried by the second transport layer network connection.

4. The system of claim 1, wherein the first quality of service corresponds to a first transmission priority of the first virtual channel carried by the first transport layer network connection, and wherein the second quality of service corresponds to a second transmission priority of the second virtual channel carried by the second transport layer network connection.

5. The system of claim 4, wherein the first transmission priority is different from the second transmission priority.

6. The system of claim 4, wherein the first transmission priority is based on the type of data communicated via the first virtual channel carried by the first transport layer network connection, and wherein the second transmission priority is based on the type of data communicated via the second virtual channel carried by the second transport layer network connection.

7. A method for allocating a different quality of service to each network connection of a plurality of network connections, where each network connection corresponds to one or more virtual channels, the method comprising:

transmitting, by a first computing device, remote-display protocol data of a first virtual channel of a remote-display protocol session via a first transport layer network connection to a second computing device, the first transport layer network connection assigned a first quality of service;

determining, by the first computing device, to transmit remote-display protocol data of the first virtual channel of the remote-display protocol session via the first transport layer network connection, responsive to the first quality of service and one of an application type and a user of the data;

transmitting, by the first computing device, remote-display protocol data of a second virtual channel of the remote-display protocol session via a second transport layer network connection to the second computing device, the second transport layer connection assigned a second quality of service different from the first quality of service; and

performing, by an intermediary device, network prioritization on the plurality of transport layer network connections, a priority of the second virtual channel corresponding to the second quality of service and assigned responsive to a content type, the content type comprising at least one of voice, video, and audio content.

8. The method of claim 7, wherein the first transport layer network connection is assigned a first port number, and the second transport layer network connection is assigned a second port number different from the first port number.

9. The method of claim 7, wherein the first quality of service is based on a type of remote-display protocol data of the first virtual channel, and the second quality of service is based on a type of remote-display protocol data of the second virtual channel.

10. The method of claim 7, wherein the first quality of service is based on a transmission priority of the first virtual channel different from the priority of the second virtual channel.

11. The method of claim 10, further comprising:

transmitting remote-display protocol data of the first virtual channel of the remote-display protocol session via the first transport layer network connection to the second computing device via the intermediary device performing traffic prioritization based on the first quality of service and agnostic to the remote-display protocol data; and

transmitting remote-display protocol data of the second virtual channel of the remote-display protocol session via the second transport layer network connection to the second computing device via the intermediary device performing traffic prioritization based on the second quality of service and agnostic to the remote-display protocol data.

12. The method of claim 7, further comprising determining to transmit remote-display protocol data of the first virtual channel of the remote-display protocol session via the first transport layer network connection, responsive to the content type.

13. A method for allocating a different quality of service to each network connection in a plurality of network connections, where each network connection corresponds to one or more virtual channels, the method comprising:

establishing, by a first computing device, a remote-display protocol session with a second computing device via a first transport layer connection, the first transport layer connection assigned a first quality of service and the remote-display protocol session comprising a plurality of virtual channels;

establishing, by the first computing device, a second transport layer connection with the second computing device, the second transport layer connection assigned a second quality of service different from the first quality of service;

transmitting, by the first computing device, remote-display protocol data of a first virtual channel of the remote-display protocol session via the first transport layer connection, responsive to a priority of the first virtual channel corresponding to the first quality of service, wherein the priority of the first virtual channel is assigned responsive to one of an application type and a user of the remote-display protocol data of the first virtual channel;

transmitting, by the first computing device, remote-display protocol data of a second virtual channel of the remote-display protocol session via the second transport layer connection, responsive to a priority of the second virtual channel corresponding to the second quality of service; and

performing, by an intermediary device, network prioritization on the plurality of transport layer network connections, the priority of the second virtual channel assigned responsive to a content type, the content type comprising at least one of voice, video, and audio content.

14. The method of claim 13, wherein establishing a remote-display protocol session comprises transmitting a request to establish the remote-display protocol session to the second computing device.

15. The method of claim 13, wherein establishing a remote-display protocol session comprises establishing the remote-display protocol session responsive to receiving a request to establish the remote-display protocol session from the second computing device.

16. The method of claim 13, wherein establishing the second transport layer connection comprises transmitting a request to establish the second transport layer connection to the second computing device.

17. The method of claim 13, wherein establishing the second transport layer connection comprises establishing the second transport layer request responsive to receiving a request to establish the second transport layer connection from the second computing device.

18. The method of claim 13, wherein establishing the second transport layer connection further comprises establishing the second transport layer connection responsive to the priority of the second virtual channel being different from the priority of the first virtual channel.

19. The method of claim 13, wherein transmitting the remote-display protocol data of the first virtual channel comprises transmitting the remote-display protocol data via the intermediary device performing traffic prioritization based on the first quality of service and agnostic to the remote-display protocol data of the first virtual channel, and wherein transmitting the remote-display protocol data of the second virtual channel comprises transmitting the remote-display protocol data via the intermediary device performing traffic prioritization based on the second quality of service and agnostic to the remote-display protocol data of the second virtual channel.