Patent ID: 7808914

Claim:
A method for realizing Operation and Maintenance (OAM) function interworking between Ethernet and Multi-Protocol Label Switching (MPLS) networks, wherein when it is required to convert Ethernet OAM functions into MPLS OAM functions, the method comprises: determining whether the Ethernet OAM functions affect the MPLS OAM functions; if yes, executing the next step; otherwise transferring Ethernet OAM frames in an MPLS network transparently and terminating the present process; and converting, by a first interworking function entity between a first Ethernet network and the MPLS network, the Ethernet OAM frames into corresponding types of MPLS OAM packets, processing the MPLS OAM packets according to processing modes of the MPLS network for the corresponding types of MPLS OAM packets, and restoring, by a second interworking function entity between a second Ethernet network and the MPLS network, the MPLS OAM packets into the Ethernet OAM frames, wherein the Ethernet OAM frames are Ethernet Link Trace (ETH-LT) frames, and wherein converting the Ethernet OAM frames into corresponding types of MPLS OAM packets, processing the MPLS OAM packets and restoring the MPLS OAM packets into the Ethernet OAM frames comprises: converting, by the first interworking function entity, the ETH-LT frames into MPLS LSP Path Trace OAM packets, processing the MPLS LSP Path Trace OAM packets according to LSP Path Trace function in the MPLS network, and converting, by the second interworking function entity, the LSP Path Trace OAM packets into the Ethernet ETH-LT frames.