Segment routing packet policies and functions providing processing signaling and packet forwarding efficiencies in a network
US10516610B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Mar 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, segment routing network processing of packets is performed, including using segment routing packet policies and functions providing segment routing processing signaling and packet forwarding efficiencies in a network. A segment routing node signals to another segment routing node using a signaled segment identifier in a segment list of a segment routing packet with the segments left identifying a segment list element above the signaled segment identifier. A downstream segment routing node receives the segment routing packet, obtains this signaled segment identifier, and performs processing of one or more packets based thereon. In one embodiment, a provider edge node replaces its own segment identifier in a received customer packet, with a downstream customer node using the replaced (signaling) segment identifier (of a provider edge node/segment routing function) for accessing a return path through the provider network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.