Extended layer two tunneling protocol applications and architectures

Patent metadata

Field	Value
Publication number	US-9338024-B2
Application number	US-8249808-A
Country	US
Kind code	B2
Filing date	Apr 11, 2008
Priority date	Apr 11, 2007
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A device, deployed at the edge of a provider network, includes logic to receive traffic from one or more customer edge devices, and to encapsulate the customer traffic into a Layer 2 tunnel of an IP frame. The IP frame in further included within an Ethernet frame, and quality of service priority bits are promoted from the customer traffic into both the IP frame and the Ethernet frame.

First claim

What is claimed is:

1. An edge device of a provider network, the edge device comprising:
non-transitory machine-readable media and circuitry comprising logic to receive customer traffic from a customer edge device;
logic to encapsulate the customer traffic into a Layer 2 tunnel of an Internet Protocol frame (IP IP frame) to form an encapsulated Layer 2 tunnel;
logic to include the IP frame in an Ethernet frame; and
logic to promote quality of service priority bits from the customer traffic into both the IP frame and the Ethernet frame.

2. The edge device of claim 1 , further comprising:
logic to map the quality of service priority bits promoted from the customer traffic into Data Over Cable Service Interface Specification service flows (DOCSIS service flows).

3. The edge device of claim 1 , further comprising:
Virtual Switching Instance logic (VSI logic).

4. The edge device of claim 1 , further comprising:
Internet Protocol Security logic (IPSec logic) to secure the encapsulated Layer 2 tunnel.

5. The edge device of claim 1 , further comprising:
logic to support Internet connections by the customer edge device separate from the encapsulated Layer 2 tunnel.

6. The edge device of claim 1 , further comprising:
multimedia terminal adapters logic (MTA logic).

7. The device of claim 1 , further comprising:
logic to implement a hierarchical Layer 2 tunnel protocol architecture.

8. A method performed in a provider edge device, comprising:
encapsulating customer traffic in a Layer 2 tunnel within an IP packet;
including the IP packet in an Ethernet packet; and
promoting priority bits of the customer traffic into a header of the IP packet and a header of the Ethernet packet.

9. The method of claim 8 , further comprising:
passing the Ethernet packet to a DOCSIS classifier.

10. The method of claim 9 , further comprising:
routing the Ethernet packet via VSI logic.

11. The method of claim 8 , further comprising:
processing hosted voice services separate from the Layer 2 tunnel.

12. The method of claim 8 , further comprising:
processing hosted voice services within the Layer 2 tunnel.

13. The method of claim 8 , further comprising:
securing the Layer 2 tunnel using IPSec logic.

14. A cable network, comprising a plurality of edge devices, each edge device comprising:
non-transitory machine-readable media and circuitry comprising logic to receive customer traffic from a customer edge device and to encapsulate the customer traffic into a Layer 2 tunnel of an IP frame; and
logic to include the IP frame in an Ethernet frame, and to promote quality of service priority bits from the customer traffic into both the IP frame and the Ethernet frame.

15. The cable network of claim 14 , wherein each of the plurality of edge devices further comprises logic to map the quality of service priority bits promoted from the customer traffic into DOCSIS service flows.

16. The cable network of claim 14 , wherein each of the plurality of edge devices further comprises VSI logic implementing an Ethernet Layer 2 bridge.

17. The cable network of claim 14 , wherein each of the plurality of edge devices further comprises IPSec logic to secure the Layer 2 tunnel.

18. The cable network of claim 14 , wherein each of the plurality of edge devices further comprises logic to support Internet connections by the customer edge device separate from the Layer 2 tunnel.

Assignees

• Emmendorfer Michael
• Cloonan Tom
• Arnold Erich
• Arris Entpr Inc

Inventors

• Emmendorfer Michael
• Cloonan Tom
• Arnold Erich

Classifications

• H04L12/2861

  Point-to-multipoint connection from the data network to the subscribers · CPC title

• H04L12/4633 Primary

  Interconnection of networks using encapsulation techniques, e.g. tunneling · CPC title