Method and network device for loop detection
US9137137B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Apr 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for loop detection and a network device applying such method are provided. The method includes: receiving, by a port, a loop detection frame; detecting, by a loop detection unit, whether the loop detection frame is transmitted via a port of the network device; analyzing, by a frame analyzer unit, the loop detection frame when the loop detection frame is transmitted via the port, and determining whether there is any loop in the network device; and shutting down the port of the network device or not perform any action, by a port switching unit when the frame analyzer unit determines that there is a loop in the network device, wherein the loop detection frame is a loop detection protocol data unit (LDPDU) frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.