The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2018
Filed:
Sep. 25, 2012
Tejas Networks Limited, Bangalore, Karnataka, IN;
Somnath Ojha, Maharashtra, IN;
Vinod Kumar Madaiah, Karnataka, IN;
Other;
Abstract
The present invention relates to a protection switching method and system for a Multi-Rooted Point-to-Multi-point Service in a Provider Backbone Bridge (PBB) network. In one embodiment, this is accomplished by assigning at least one communication device as Root node, a plurality of intermediate nodes and Leaf nodes, receiving, on at least one of the edge nodes (i.e. Root or leaf), the data packets from a client network interfacing with the PBB network, configuring all the communication edge devices to create a MAC-in-MAC data packet from the received data packet, configuring the Root node to add ISID R and leaf nodes to add ISID L in the I-tag of MAC-in-MAC data packets, determining a fault, if integrity check messages are not received in a predetermined time period between the Root node and the Leaf Nodes and switching the traffic by changing the designated backbone destination MAC address of the MAC-in-MAC data packets from the present root node MAC address to other available superior root node MAC address; wherein switching is performed when integrity failure is detected, or upon network operator request.