Method of multi-port virtual local area network (VLAN) supported by multi-protocol label switch (MPLS)
US7848333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2004 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/507
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method of supporting a multi-port virtual local area network (VLAN) with a multi-protocol Label switch (MPLS), comprising steps of: establishing a label switching path (LSP) by the label distribution protocol (LDP), and obtaining information binding a forwarding equivalence class (FEC) and a label or information binding an ingress label and an egress label, and an address of a LDP peer entity at an opposite end, which is a next-hop IP address; the MPLS table item managing module creating a forwarding-relation table, and adding a forwarding-relation table item based upon the obtained information; obtaining an egress port corresponding to the forwarding-relation table item based upon the next-hop IP address; and accomplishing the MPLS via the egress port. With the present invention, it is possible to support the multi-port VLAN in a three-layer switch with the function of the MPLS and implement the MPLS in the VLAN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.