Multicast flow prioritization
US10999090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/677
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for multicast flow prioritization in protocol independent multicast (PIM) networks with multicast flow limits. According to the disclosed techniques, once a router has reached its multicast flow limit, the router may preempt an installed lower priority multicast flow with a newly requested higher priority multicast flow. For example, if a maximum number of multicast flows are installed on the router, then, upon receiving a PIM join for a higher priority flow as compared to the installed flows, the router replaces one of the installed lower priority flows with the received higher priority flow. Furthermore, according to the disclosed techniques, priority values for multicast flows are consistent across a PIM domain and each of the routers within the PIM domain is configured to use the priority values to select a higher priority flow over a lower priority flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.