System and method for providing support for multipoint L2VPN services in devices without local bridging
US7633956B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Oct 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2898
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device has a network interface to allow the device to send and receive traffic across a network. The device also has a cable connection to allow the device to exchange data with at least one cable modem and a processor to associate a cable interface and cable service identifier with a cable modem; receive a packet from the cable modem; and insert a layer 2 network identifier, the identifier comprising two service provider VLAN (SP-VLAN) tags, into the packet. The processor in the network device identifies a virtual trunk interface based on the outer SP-VLAN tag and identifies the virtual private network based on the inner SP-VLAN tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.