First hop router identification in distributed virtualized networks
US11032186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Nov 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for identifying a first hop router (“FHR”) in a distributed virtualized network is presented. In an embodiment, a method comprises receiving a multicast message on an incoming interface. In response to receiving the multicast message, the router determines whether the router is a FHR for the multicast message, i.e., whether, in response to generating and transmitting a hello multicast message, the router does not receive a response on the incoming interface; or whether an interface to a RP for the multicast message is different than the incoming interface. If the router is the FHR for the multicast message, then the router determines an IP address of a RP for the multicast message. The router also encapsulates the multicast message into a unicast message, includes in the unicast message the IP address of the RP as a destination address, and transmits the unicast message to the RP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.