Reverse path forwarding lookup with link bundles
US8873558B2 · kind B2 · utility
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17Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 3, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Apr 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method includes receiving a packet at an interface at a network device having a plurality of interfaces connected to a plurality of links forming a bundle, performing a Reverse Path Forwarding (RPF) check on the received packet, and forwarding the packet if it passes the RPF check. The RPF check includes a lookup in an RPF table having a plurality of entries for the bundle, each of the entries including the bundle and one of the links in the bundle, and verification that the interface receiving the packet is connected to one of the links in the bundle identified in the lookup. An apparatus is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.