Failure localisation in a MPLS-TP network

Failure localisation in a MPLS-TP network

The present invention relates to methods and arrangements in an MPLS-TP network. comprising a plurality of interconnected routers configured for MPLS-TP, wherein at least a first router is defined as an originating Maintenance End Point, MEP, a second router is defined as a targeting MEP and the thi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANDERSSON, LOA, ZHAO, WEI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:The present invention relates to methods and arrangements in an MPLS-TP network. comprising a plurality of interconnected routers configured for MPLS-TP, wherein at least a first router is defined as an originating Maintenance End Point, MEP, a second router is defined as a targeting MEP and the third router is defined as a Maintenance Intermediate Point, MIP. The basic idea of the present invention is to associate information related to the MEPs of the MPLS-TP network with each MIP and MEP. The information is inserted in the reply packets and forwarded packets. By using this information, the OAM packets can find the subsequent MIP or MEP and failure localization may be performed.