Applying attestation tokens to the intermediate system to intermediate system (ISIS) routing protocol
US11277264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Apr 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0876
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes receiving an ISIS hello message including an attestation token from a second network apparatus, determining that the attestation token is valid for the second network apparatus at a current time, establishing an adjacency to the second network apparatus in response to the determination, computing, based at least on the attestation token, a trust level for a first link from the first network apparatus to the second network apparatus and a trust level for first prefixes associated with the first link, and sending an LSP comprising the trust level for the first link and the trust level for the first prefixes to neighboring network apparatuses, where the trust level for the first link and the trust level for the prefixes are used by the network apparatuses in the network to compute a routing table of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.