Patent · US Active

Method and system for identifying instability or a spanning tree protocol loop in a network

US7609658B2 · kind B2 · utility

3Cited by

2References

22Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Muhammad Sarosh Niazi · San Jose, US
Muhammad Moizuddin · San Jose, US

Key dates

Filing date	Aug 3, 2006
Grant date	Oct 27, 2009
Priority date	—
Expiry date	Oct 11, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L45/02
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and systems for identifying instability or a loop in a network. In one method, a first BPDU message is received at a switch indicating a topology change. The message includes a bridge identifier identifying a network device originating the first BPDU message. A second BPDU is generated at the switch and includes the bridge identifier identifying the network device originating the first BPDU message. The method further includes transmitting the second BPDU message indicating the topology change from the switch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.