Graceful port shutdown protocol for fibre channel interfaces
US7593324B2 · kind B2 · utility
22Cited by
94References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2004 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/357
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A port shutdown protocol coordinates among various components involved in the process of administratively bringing down a link at both ends of a link connecting two switches. Execution of the protocol avoids or reduces frame drops and/or reordering. In this protocol, peer switches perform various actions when bringing down an ISL in a synchronized manner. In one implementation, this protocol uses the Exchange Peer Protocol (EPP) as the underlying transport to carry the port shutdown protocol frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.