Segment routing—egress peer engineering (SP-EPE)
US9912577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/46
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a controller device in a computer network domain learns border gateway protocol (BGP) egress peering segments from one or more border routers of the domain, and determines a selected flow to segment route via a particular egress peering segment, the selected flow from a given routing device within the domain to a given destination of a remote domain. As such, the controller device may then instruct the given routing device to segment route the selected flow via the particular egress peering segment. In another embodiment, an egress border router shares its BGP egress peering segments, and receives a flow to segment route. The egress border router may determine, from a segment route contained within the flow, to which particular egress peering segment of the border router to segment route the flow, and forwards the flow out of the domain via the particular egress peering segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.