Differentiated service behavior based on differentiated services code point (DSCP) bits

Patent metadata

Field	Value
Publication number	US-9515864-B2
Application number	US-201414339638-A
Country	US
Kind code	B2
Filing date	Jul 24, 2014
Priority date	Jul 24, 2014
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A device may be configured to receive an Internet Protocol (IP) packet from a client device. The IP packet may include DiffServ Code Points (DSCP) information and payload data. The device may read the DSCP information included in the IP packet. The device may determine a module to load based on the DSCP information and before reading the payload data included in the IP packet. The device may load the module and provide a service to the client device based on the loaded module and the IP packet.

First claim

What is claimed is:

1. A device, comprising:
a memory to store instructions; and
one or more processors, connected to the memory, to execute the instructions to:
receive an Internet Protocol (IP) packet,
the IP packet including DiffServ Code Points (DSCP) information and payload data,
the DSCP information being set to a first value by a client device, and
the DSCP information being set to a second value based on an inspection of the payload data by a network device that forwards the IP packet from the client device to the device;

read the DSCP information included in the IP packet received from the network device;
determine, before reading the payload data, a module to load based on the DSCP information;
load the module; and
provide a service to the client device based on the loaded module and the IP packet.

2. The device of claim 1 ,
where the one or more processors, when receiving the IP packet, are to:
receive the IP packet via a socket, and

where the one or more processors are further to:
copy the DSCP information in a memory associated with the socket.

3. The device of claim 1 , where the one or more processors, when reading the DSCP information included in the IP packet, are to:
read the DSCP information through a socket option.

4. The device of claim 1 , where the one or more processors are further to:
cause a server device application to receive the DSCP information through a socket option,
the server device application being used to determine the module to load.

5. The device of claim 1 , where the one or more processors, when determining the module to load, are to:
determine the module to load by querying a reference data structure based on the DSCP information.

6. The device of claim 1 , where the first value is different from the second value.

7. The device of claim 1 , where the payload data includes a request to provide a particular service.

8. A computer-readable medium storing instructions, the instructions comprising:
one or more instructions that, when executed by one or more processors of a device, cause the one or more processors to:
receive a packet,
the packet including a packet header and payload data,
the packet header including DiffServ Code Points (DSCP) information,
the DSCP information being set to a first value by a client device, and
the DSCP information being set to a second value based on an inspection of the payload data by a network device that forwards the packet from the client device to the device;

read the DSCP information included in the packet received from the network device;
determine, before reading the payload data, a module to load based on the DSCP information;
load the module; and
provide a service to the client device based on the loaded module and the packet.

9. The computer-readable medium of claim 8 ,
where the one or more instructions, that cause the one or more processors to receive the packet, cause the one or more processors to:
receive the packet via a transmission control protocol (TCP) socket, and

where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to:
store the DSCP information in a memory associated with the TCP socket.

10. The computer-readable medium of claim 8 , where the one or more instructions, that cause the one or more processors to read the DSCP information, cause the one or more processors to:
read the DSCP information through a socket option.

11. The computer-readable medium of claim 8 , where the one or more instructions further cause the one or more processors to:
cause a server device application to receive the DSCP information through a socket option,
the server device application being used to determine the module to load.

12. The computer-readable medium of claim 8 , where the one or more instructions, that cause the one or more processors to determine the module to load, cause the one or more processors to:
determine the module to load by querying a reference data structure based on the DSCP information.

13. The computer-readable medium of claim 8 , where the first value is different from the second value.

14. The computer-readable medium of claim 8 , where the payload data includes a request to provide a particular service.

15. A method, comprising:
receiving, by a server device, an Internet Protocol (IP) packet,
the IP packet including an IP header and payload data,
the IP header including DiffServ Code Points (DSCP) information,
the DSCP information being set to a first value by a client device, and
the DSCP information being set to a second value based on an inspection of the payload data by a network device that forwards the IP packet from the client device to the server device;

reading, by the server device, the DSCP information included in the IP header of the IP packet received from the network device;
determining, by the server device and before reading the payload data, a module to load based on the DSCP information;
loading, by the server device, the module; and
providing, by the server device, a service to the client device based on the loaded module and the IP packet.

16. The method of claim 15 ,
where receiving the IP packet comprises:
receiving the IP packet via a socket, and

where the method further comprises:
copying the DSCP information into a memory associated with the socket.

17. The method of claim 15 , where reading the DSCP information included in the IP header comprises:
reading the DSCP information through a socket option.

18. The method of claim 15 , further comprising:
causing a server device application to receive the DSCP information through a socket option,
the server device application being used to determine the module to load.

19. The method of claim 15 , where determining the module to load comprises:
determining the module to load by querying a reference data structure based on the DSCP information.

20. The method of claim 15 , where the first value is different from the second value.

Assignees

• Verizon Patent & Licensing Inc

Inventors

• Soni Shailendra

Classifications

• H04L29/06095

  Electricity · mapped topic

• H04L47/12

  Avoiding congestion; Recovering from congestion · CPC title

• H04L12/56

  Packet switching systems · CPC title

• H04L47/2441 Primary

  relying on flow classification, e.g. using integrated services [IntServ] · CPC title

• H04L29/0653 Primary

  Electricity · mapped topic