Protocol independent multicast sparse mode (PIM-SM) support for data center interconnect
US9948472B2 · kind B2 · utility
15Cited by
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18Claims
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Key dates
| Filing date | Dec 22, 2014 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Mar 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for utilizing Protocol Independent Multicast Sparse Mode (PIM-SM) to transport BUM (broadcast, unknown unicast, and multicast) traffic in a Virtual Extensible LAN (VXLAN) underlay of a data center, where the BUM traffic is received on active-active, multi-homed Ethernet virtual private network (EVPN) interconnects between multiple physical data centers. For example, the techniques may readily be applied to support usage of PIM-SM where provider edge (PE) routers of the EVPN operate as gateways between the EVPN and the VXLAN spanning the data center interconnect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.