Method and device for determining forwarding rule for data packet
US9197550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/68
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and corresponding device for determining forwarding rule for data packet in Virtual Private LAN Service with Provider Backbone Bridge (PBB-VPLS) network are disclosed. In the method, a value in a backbone service instance identifier (I-SID) field of the received data packet is firstly examined, then a virtual split horizon group corresponding to the data packets is determined based on the I-SID value, wherein the virtual split horizon group defines a forwarding rule for the data packets between different pseudo wire ports of the PBB-VPLS network. With the dynamic split horizon group, the method dynamically adapts to different forwarding rules for multiple I-VPLS instances with different tree topologies, and is capable of supporting multiple I-VPLS instances with different root sites and tree topologies in one B-VPLS instance, thereby ensuring the stability of the backbone network and reducing the network operation cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.