Distributed spanning tree protocol on a multi chassis port channel
US8325630B2 · kind B2 · utility
9Cited by
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17Claims
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Key dates
| Filing date | Feb 29, 2008 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Dec 8, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a technique for routing traffic in networks represented by logical topologies, such as Multi Chassis Port Channel (MCPC) or Multi Chassis Ether Channel (MCEC) topologies, is provided. By modifying a port priority vector (PPV) to include an additional “Switch ID” field that identifies a designated bridge ID or a local switch ID, depending on whether the corresponding port is used as an MCT, a routing protocol designed to avoid loops in routing paths, such as STP, may avoid blocking MCT ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.