The segmentation method is the most important method for isolating faults on the transport network. Different methods are used for different fault…

The segmentation method is the most important method for isolating faults on the transport

network. Different methods are used for different fault types, such as Optical Time Domain

Reflectometry (OTDR) for fiber faults, Radio Frequency Interference Measurement (RFI) for radio

interference, and Signal-to-Noise Ratio (SNR) for signal noise. By segmenting the network, faults can

be

easily

identified

and

isolated.

Reference:

https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/L2L3_VPN_Optimiza

tion_Solution/2-1_L2L3_VPN_Optimization_Solution_Chapter.html