Inducing symmetry via multi topology routing
US8036118B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Aug 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/306
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a technique for selecting a topology, in a multi-topology routing network, based on a source-destination pair of a packet is provided. The packet may be routed on a preferred path of the selected topology. By selecting the same topology for the source-destination pair even if the source and destination addresses are swapped, upstream and downstream traffic may be routed in a symmetrical manner. For some embodiments, a topology may be selected using a hash value that is generated using an algorithm that is commutative with respect to the source and destination addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.