MPLS OAM introduction

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Operation, administration and maintenance (OAM) is an important means to reduce network maintenance costs. Multiprotocol Label Switching (MPLS) OAM implements O&M at the MPLS layer.

Other related questions:
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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