Disaggregated border gateway protocol (BGP)
US11539615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2020 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Dec 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/74
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disaggregated border gateway protocol (BGP) enables an eBGP session between an internal node an external node to continue despite failover of a perimeter through which the eBGP session is established. eBGP control traffic is trapped by a perimeter router and forwarded to a BGP speaker on the internal node through an IP tunnel. Failover is detected in response to a change in a source address of the IP tunnel over which eBGP control traffic is received. The BGP speaker announces routes to the external node that include a reference to an internal address of an active perimeter router. In response to failover, the BGP speaker announces updated routes referencing the standby router for the perimeter router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.