Loop detection and avoidance for segment routed traffic engineered paths
US10182000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2016 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Dec 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is described and in one embodiment includes receiving a packet of a traffic flow at an ingress node of a communications network; routing the packet to an egress node of the communications network via a first path comprising a tunnel if the packet was received from a node external to the communications network; and routing the packet to the egress node of the communications network via a second path that does not traverse the tunnel if the packet was received from a node internal to the communications network. The first path is identified by a first Forwarding Information Base (“FIB”) entry corresponding to the flow and the second path is identified by a second FIB entry corresponding to the flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.