Multicast data forwarding method and device supporting virtual terminal
US9344286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2012 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/201
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a multicast data forwarding method and device supporting a virtual terminal. The method includes: a bridge forwarding module receiving multicast data sent by an end station and determining output ports; when a certain output port is the same with the input port of the multicast data and the input port has enabled reflective relay function, not carrying Ingress extended channel identifier (Ingress_E-CID) in the forwarded message information or the value of the Ingress_E-CID being zero. By modifying the source port filtering mechanism, the present invention enables a Port Extender (PE) supporting the virtual terminal technology to transmit and receive data normally while multicasting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.