External loop detection for an ethernet fabric switch
US9007958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Feb 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/586
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a switch. The switch includes a local identifier associated with the switch, a receiving interface, a loop detection mechanism, and an interface control mechanism. The receiving interface identifies a loop-detection frame which includes an identifier associated with originating switch of the frame. The loop detection mechanism detects a loop based on a match of the identifier associated with the originating switch and the local identifier. The interface control mechanism is coupled to the loop detection mechanism and precludes, in response to detecting a loop, the receiving interface from forwarding frames corresponding to the loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.