Patent · US Active

Systems and methods to detect and recover from a loop in an Ethernet ring protected network

US10091023B2 · kind B2 · utility

1Cited by

11References

20Claims

0Family size

Assignee

Ciena Corporation · US

Inventors

Balaji Subramaniam · Abdulrahman Khaleefah Street, US
Paul Simon Nahlous · San Anselmo, US
Terry Mitchell · Robbinsdale, US
Phil Schaefer · Petaluma, US

Key dates

Filing date	Dec 21, 2015
Grant date	Oct 2, 2018
Priority date	—
Expiry date	May 10, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L49/354
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Loop detection systems and methods in an Ethernet Ring Protected network include, subsequent to creating a loop detection service on all nodes in the network, periodically transmitting a loop detection frame on both ports of the node; responsive to failing to receive the loop detection frame at the node, determining no loop exists in the ring; and, responsive to receiving the loop detection frame on a received port at the node, determining a loop exists in the ring and automatically implementing one or more recovery actions.

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