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  • bitdays.co.kr/2021/10/23/roadm-wss-%ea%b5%ac%ec%84%b1-%ec%9a%94%ec%86%8c-%ec%8b%9c%ec%9e%a5-%ea%b7%9c%eb%aa%a8-%ec%84%b1%ec%9e%a5-%eb%b6%84%ec%84%9d-%eb%b3%b4%ea%b3%a0%ec%84%9c-2021-2026-%ed%8c%90%eb%a7%a4-%ec%88%98/ (port 80)