We propose a cost effective protection architecture and its algorithms in the OLT (Optical Line Termination) and the ONUs (Optical Network Units) for Ethernet Passive Optical Network (EPON). The proposed protection architecture can accommodate various types of protection demands of subscribers. We show that our protection mechanism can recover within 50111s. Finally we prove the proposed architecture as a cost effective solution compared with other similar protection architectures Kepvordr-EPON; protection architecture; access nehvorh
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