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:
Nov. 25, 2014
Filed:
Nov. 02, 2010
Zhenlong Cui, Tokyo, JP;
Hiroyuki Takagi, Tokyo, JP;
Masaki Umayabashi, Tokyo, JP;
Kazuo Takagi, Tokyo, JP;
Akira Sakurai, Tokyo, JP;
Hiroshi Tanaka, Tokyo, JP;
Zhenlong Cui, Tokyo, JP;
Hiroyuki Takagi, Tokyo, JP;
Masaki Umayabashi, Tokyo, JP;
Kazuo Takagi, Tokyo, JP;
Akira Sakurai, Tokyo, JP;
Hiroshi Tanaka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A node according to the present invention is used in an MPLS (Multi Protocol Label Switching) network, and the node includes an input unit which receives an OAM (Operation Administration and Maintenance) frame including TTL (Time To Live) from outside of the node and an output unit which transmits an OAM frame to outside of the node, wherein the input unit sets the TTL to a specific value and transmits the received OAM frame to the output unit in case a termination destination which an OAM frame received from outside indicates is the node and the received OAM frame is to be transmitted to the output unit and the output unit terminates an OAM frame transmitted from the input unit.