Dual-homing layer 2 switch
US7602705B1 · kind B1 · utility
5Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2006 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/557
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment relates to a method of providing dual-homing in a layer 2 switch. A determination is made as to whether a link is available to an upstream network on for a currently active port. If the link is unavailable, then the layer 2 switch a) performs a switchover such that the currently active port becomes a newly passive port, and a currently passive port becomes a newly active port, b) clears entries in an address table of the layer 2 switch, and c) spoofs MAC addresses out of the newly active link. Other embodiments are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.