System and Method for Implementing Network Enhanced Gateway Functionality

• US 20160330140A1
• Filed: 05/06/2016
• Published: 11/10/2016
• Est. Priority Date: 04/03/2014
• Status: Active Grant

• Current Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Original Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Inventors: Cook, Charles I., Bugenhagen, Michael K., McBride, Kevin M., Cook, Andrew V.
• Granted Patent: US 10,616,377 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 10/27 Arrangements for networking
• CPC Class Codes: H04L 12/28 characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] wireless communication networks H04W ; arrangements for dividing the transmission path H04W40/00
• CPC Class Codes: H04L 12/2878 Access multiplexer, e.g. DSLAM generic distributed time multiplexers, e.g. TDM/TDMA H04J3/1694
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/4629 using multilayer switching, e.g. layer 3 switching
• CPC Class Codes: H04L 45/64 using an overlay routing layer
• CPC Class Codes: H04L 49/25 Routing or path finding in a switch fabric
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

Novel tools and techniques are provided for implementing network enhanced gateway functionality, and, in particular embodiments, for implementing network enhanced gateway functionality using network functions virtualization (“NFV”) and/or software defined networks (“SDNs”). In some embodiments, a network switch, which is disposed within a gateway device, might route network traffic to a host computing system, at least a portion of the network traffic being originally directed to a client device via a corresponding client port among a plurality of client ports. Based at least in part on one or more characteristics of the at least a portion of the network traffic, the host computing system selects one or more virtual network functions (“VNFs”), which are then sent to the host computing system via the network switch. According to some embodiments, the network switch and the host computing system are under control of a NFV entity and/or a SDN controller.

Claims

1. A method, comprising:

receiving, with a network switch disposed within a gateway device, network traffic, at least a portion of the network traffic being directed to a client device via the network switch and via corresponding client port among a plurality of client ports;

routing, with the network switch, the network traffic to a host computing system;

selecting, with the host computing system, one or more virtual network functions (“

VNFs”

), based at least in part on one or more characteristics of the received network traffic; and

sending, via the network switch, at least one VNF of the selected one or more VNFs to the host computing system, the at least one VNF being selected by the host computing system based at least in part on one or more characteristics of the at least a portion of the network traffic that is directed to the client device.

2. The method of claim 1, wherein the network switch and the host computing system are under control of at least one of a network functions virtualization (“

NFV”

) entity or a software defined network (“

SDN”

) controller.

3. The method of claim 2, wherein the NFV entity comprises at least one of a NFV orchestrator, a network functions virtualization infrastructure (“

NFVI”

) system, a NFV management and orchestration (“

MANO”

) system, a VNF manager, a NFV resource manager, a virtualized infrastructure manager (“

VIM”

), a virtual machine (“

VM”

), a macro orchestrator, or a domain orchestrator.

4. The method of claim 1, wherein the host computing system and the network switch are disposed within a single gateway device.

5. The method of claim 1, wherein the host computing system is located external to the gateway device in which the network switch is disposed, wherein the gateway device comprises a host port, and wherein the host computing system communicatively couples to the network switch via the host port.

6. The method of claim 1, wherein the host computing system hosts an instantiated network functions virtualization infrastructure (“

NFVI”

) system.

7. The method of claim 1, wherein the network switch comprises at least one network-to-network interface (“

NNI”

) and at least one user network interface (“

UNI”

), the NNI receiving the network traffic and communicatively coupling with the host computing system, and the UNI communicatively coupling with the client device via the corresponding client port of the plurality of client ports.

8. The method of claim 1, wherein the network switch is a virtual network switch that utilizes a network switch VNF to provide network switching functionality.

9. The method of claim 1, wherein the gateway device is selected from a group consisting of a customer premises equipment (“

CPE”

), a router, a switch, a network element, a demarcation device, a WiFi gateway device, a hypervisor platform, and one or more virtual machine-based host machines.

10. The method of claim 9, wherein the CPE comprises at least one of an optical network terminal (“

ONT”

), a network interface device (“

NID”

), an enhanced NID (“

eNID”

), a residential gateway (“

RG”

) device, a business gateway (“

BG”

) device, or a virtual gateway (“

vG”

) device, wherein the gateway device is located at or near a customer premises associated with a user of the client device.

11. The method of claim 1, wherein the client device includes a user device comprising one of a tablet computer, a smart phone, a mobile phone, a portable gaming device, a laptop computer, or a desktop computer.

12. The method of claim 1, wherein the client device includes a device selected from a group consisting of a small form factor pluggable (“

SFP”

) device, an enhanced SFP (“

SFP+”

) device, a compact SFP (“

CSFP”

) device, a gigabit interface converter (“

GBIC”

), and a universal serial bus (“

USB”

) pluggable device.

13. The method of claim 12, wherein at least one of the SFP device, the SFP+ device, or the CSFP device comprises at least one of a SFP network interface device (“

NID”

), a SFP router, a SFP modem, or a SFP wireless access point.

14. The method of claim 12, wherein the USB pluggable device comprises one of a printer, a scanner, a combination printer/scanner device, an external hard drive, a camera, a keyboard, a mouse, a drawing interface device, or a mobile device.

15. The method of claim 1, wherein the client device includes a VNF-capable user device comprising one of a set-top box or an Internet of Things (“

IoT”

) controller, wherein the method further comprises;

sending, with the host computing system and via the network switch and the corresponding client port, at least one second VNF of the selected one or more VNFs to the client device, the at least one second VNF being selected by the host computing system based at least in part on one or more characteristics of the at least a portion of the network traffic that is directed to the client device.

16. The method of claim 15, wherein sending, with the host computing system and via the network switch and the corresponding client port, the selected one or more VNFs to the client device comprises bursting, using an application programming interface (“

API”

), the one or more VNFs from the NFV entity to the client device.

17. The method of claim 1, wherein the one or more VNFs provide the client device with one or more functions, the one or more functions comprising at least one of an activation function, an operation function, a deletion function, a specialized function, a firewall function, an Internet of Things (“

IoT”

) proxy function, an application-related function, or an operations, administration, and management (“

OAM”

) function.

18. The method of claim 1, wherein each of the plurality of client ports comprises one of a local area network (“

LAN”

) port, a Wi-Fi port, an advanced technology attachment (“

ATA”

) port, a serial ATA (“

SATA”

) port, an external SATA (“

eSATA”

) port, a powered eSATA (“

eSATAp”

) port, a mini SATA (“

mSATA”

) port, a SATA Express port, a M.2 port, or a universal serial bus (“

USB”

) port.

19. The method of claim 1, wherein the network traffic between the network switch and the host computing system is at least one of uni-directional network traffic, bi-directional network traffic, or split directional network traffic that originates from at least one of one or more of the plurality of client ports or one or more network ports.

20. The method of claim 1, wherein the one or more characteristics of the received network traffic comprises at least one of one or more attributes of an Ethernet frame, one or more media access control (“

MAC”

) source addresses, one or more MAC destination addresses, one or more Internet Protocol (“

IP”

) source addresses, one or more IP destination addresses, one or more transmission control protocol (“

TCP”

) source ports, one or more TCP destination ports, one or more priority bits, one or more particular bit patterns, bandwidth of a flow, one or more switch ports, one or more ingress ports, one or more Ethernet type identifiers, one or more virtual local area network (“

VLAN”

) identifiers, one or more network protocol identifiers, or one or more action instructions.

21. A gateway device, comprising:

a transceiver;

a plurality of client ports;

a network switch communicatively coupled to the transceiver and to each of the plurality of client ports, wherein the network switch;

receives network traffic, at least a portion of the network traffic being directed from the transceiver to a client device via the network switch and a corresponding client port among the plurality of client ports;

routes the network traffic to a host computing system; and

forwards one or more virtual network functions (“

VNFs”

) to the host computing system, the one or more VNFs being selected by the host computing system based at least in part on one or more characteristics of the at least a portion of the network traffic that is directed to the client device.

22. The gateway device of claim 21, further comprising:

the host computing system.

23. The gateway device of claim 21, further comprising:

a host port, wherein the host computing system communicatively couples with the network switch via the host port.

24. The gateway device of claim 21, wherein the host computing system comprises at least one of an x86 host computing device or an advanced reduced instruction set computer (“

RISC”

) machine (“

ARM”

) computing device.

25. The gateway device of claim 21, wherein the host computing system comprises one or more computing cores.

26. The gateway device of claim 21, wherein the network switch and the host computing system are under control of at least one of a network functions virtualization (“

NFV”

) entity or a software defined network (“

SDN”

) controller.

27. The gateway device of claim 26, wherein the NFV entity comprises at least one of a NFV orchestrator, a network functions virtualization infrastructure (“

NFVI”

) system, a NFV management and orchestration (“

MANO”

) system, a VNF manager, a NFV resource manager, a virtualized infrastructure manager (“

VIM”

), a virtual machine (“

VM”

), a macro orchestrator, or a domain orchestrator.

28. The gateway device of claim 21, wherein the network switch is a virtual network switch that utilizes a network switch VNF to provide network switching functionality.

29. The gateway device of claim 21, wherein the transceiver is a virtual transceiver that utilizes a transceiver VNF to provide transceiver functionality.

30. The gateway device of claim 21, wherein the gateway device is selected from a group consisting of a customer premises equipment (“

CPE”

), a router, a switch, a network element, a demarcation device, a WiFi gateway device, a hypervisor platform, and one or more virtual machine-based host machines.

31. The gateway device of claim 30, wherein the CPE comprises at least one of an optical network terminal (“

ONT”

), a network interface device (“

NID”

), an enhanced NID (“

eNID”

), a residential gateway (“

RG”

) device, a business gateway (“

BG”

) device, or a virtual gateway (“

vG”

) device, wherein the gateway device is located at or near a customer premises associated with a user of the client device.

32. A system, comprising:

a network switch;

a host computing system; and

at least one of a network functions virtualization (“

NFV”

) entity or a software defined network (“

SDN”

) controller, the at least one of the NFV entity or the SDN controller controlling;

the network switch to route network traffic, at least a portion of which is directed to a client device via the network switch and a corresponding client port among a plurality of client ports, to the host computing system;

the host computing system to select one or more virtual network functions (“

VNFs”

), based at least in part on one or more characteristics of the received network traffic; and

the network switch to forward at least one VNF of the selected one or more VNFs to the host computing system, the at least one VNF being selected by the host computing system based at least in part on one or more characteristics of the at least a portion of the network traffic that is directed to the client device.

33. The system of claim 32, wherein the NFV entity comprises at least one of a NFV orchestrator, a network functions virtualization infrastructure (“

NFVI”

) system, a NFV management and orchestration (“

MANO”

) system, a VNF manager, a NFV resource manager, a virtualized infrastructure manager (“

VIM”

), a virtual machine (“

VM”

), a macro orchestrator, or a domain orchestrator.

34. The system of claim 32, wherein the host computing system and the network switch are disposed within a single gateway device.

35. The system of claim 32, wherein the host computing system is located external to a gateway device in which the network switch is disposed, wherein the gateway device comprises a host port, and wherein the host computing system communicatively couples to the network switch via the host port.

36. The system of claim 32, wherein the host computing system hosts an instantiated network functions virtualization infrastructure (“

NFVI”

) system.