MPLS-TP OAM introduction

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Multiprotocol Label Switching Protocol Transport Profile (MPLS-TP) is a transport technique that integrates the MPLS packet switching and conventional transport techniques. An MPLS-TP network can function as a future-proof bearer network that replaces the existing transport networks. Working at MPLS-TP client layer and server layer, MPLS-TP operation, administration and maintenance (OAM) can effectively detect, identify, and locate faults at the client layer and quickly switch traffic when links or nodes become defective. OAM is an important means to reduce network maintenance expenditure. MPLS-TP OAM implements O&M at the MPLS-TP layer.

Other related questions:
Whether OSN 8800 MPLS-TP supports encapsulation only of Ethernet services
Currently, the MPLS-TP protocol in OSN 8800 supports only encapsulation of Ethernet services and cannot encapsulate the MPLS label for SDH services.

TP-Assist function license
1. TP-Assist Basic Function License -- Basics (1) License name: TP-Assist basic function fee (2) License function: determines whether a subrack supports the basic functions of TP-Assist. (3) License applicable object: physical subrack (by equipment type) (4) License applicable object unit: Equipment of the MS-OTN I, MS-OTN II, and MS-OTN III types Each subrack needs one corresponding license. (5) One such license is required by each subrack for which TP-Assist is enabled.

MPLS
Based on IP routing and control protocols, MPLS is a technology that provides connection-oriented switching for the network layer. MPLS uses short labels of fixed length to encapsulate packets at different link layers, and switches tags based on the encapsulated labels. MPLS has two planes: control plane and forwarding plane. The control plane is connectionless, featuring powerful and flexible routing functions to meet network requirements of various new applications. It is mainly responsible for label distribution, setup of label forwarding tables, and setup and removal of label switched paths (LSPs). The forwarding plane is also called the data plane. It is connection-oriented and supports Layer 2 networks such as ATM and Ethernet networks. The forwarding plane adds or deletes the labels of IP packets, and forwards the packets according to the label forwarding table.

Can EFM OAM be associated with an Eth-Trunk
EFM OAM cannot be associated with an Eth-Trunk. EFM OAM can be associated with an interface.

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