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:
Aug. 20, 2013
Filed:
Jan. 13, 2011
Richard Bradford, Lancaster, MA (US);
Richard Stewart, Beverly, MA (US);
Richard Bradford, Lancaster, MA (US);
Richard Stewart, Beverly, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques are provided for detecting connectivity failures within an OTV network using CFM. In an embodiment, a method and apparatus for using E-OAM to accurately test connectivity in an OTV network is provided. In an embodiment, one method comprises: in a first edge router that is in a local area network (LAN) and that is coupled to a core network: maintaining, for each node of the LAN, a mapping of a source address to one or more delivery multicast groups, each delivery multicast group comprising a set of other edge routers, each of the other edge routers having a connection to a distinct LAN; receiving a frame from a particular source node of a particular source address; sending the frame to a plurality of the delivery multicast groups that are mapped, in the mapping, to the particular source address.