Method and apparatus for providing virtual point to point connections in a network
US6944159B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2001 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Jun 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Transparent point-to-point connectivity is provided between an incoming interface on an ingress node and an outgoing interface on an egress node in a network. An address associated with the egress node is circulated to the nodes in the network and a next hop address toward the egress node address is determined at each node. A label value is circulated along with the egress node address to the nodes. Examples of label values can include VLAN Ids or Multi-protocol Label Switching (MPLS) labels. If data is received having the label value, the node receiving the data identifies the next hop address associated with that label value and transfers the data to the next hop associated with the identified next hop address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.