Minimum disruption MST reconfiguration (MDMR)
US9112724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2009 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Aug 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/48
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a first multiple spanning tree (MST) region configuration for an MST process may be maintained at a switch in a computer network, where the first configuration has a virtual local area network (VLAN)-to-instance (VI) mapping that maps each of one or more VLANs to one of one or more MST instances in the MST region. The switch may subsequently receive a second MST region configuration that has a different VI mapping than the first configuration, and may determine one or more VLANs of the second configuration that have a different VI mapping from the first configuration (“affected VLANs”). Accordingly, in response to a trigger to apply the second configuration at the switch, the affected VLANs are blocked for a delay, and the second configuration may be applied at the switch without restarting the MST process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.