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:
Dec. 27, 2016
Filed:
Apr. 04, 2012
Johan Kölhi, Vaxholm, SE;
Lars Hallström, Vaxholm, SE;
Tomas Thyni, Järfälla, SE;
Annikki Welin, Solna, SE;
Johan Kölhi, Vaxholm, SE;
Lars Hallström, Vaxholm, SE;
Tomas Thyni, Järfälla, SE;
Annikki Welin, Solna, SE;
TELEFONAKTIEBOLAGET L M ERICSSON, Stockholm, SE;
Abstract
The present invention relates to method and arrangements to measure connectivity between Two Way Active Measurement Protocol TWAMP entities comprising a session-server () and session-reflectors (-) in a communication network. The method comprises steps like: Dividing in the session-server (), the session-reflectors (-) into at least one defined group (-) of session-reflectors (----); Transmitting a test session (-) from the session-server () to the session-reflectors (--) by using Source Specific Multicasting, said test session comprising at least one test packet (--)being destined to at least one session-reflector (--) in at least one defined group (-); Replying to the at least one test packet (--) by the at least one session-reflector (--).