A.127開(kāi)頭的本地路由 B.對(duì)端光口IP指向本端光口IP的路由 C.各個(gè)域的IP指向?qū)Χ斯饪贗P的路由 D.各個(gè)光板指向本設(shè)備的路由
A.2M通信 B.NMS系統(tǒng)與SDH網(wǎng)元的以太網(wǎng)通信 C.SDH網(wǎng)元之間的ECC通信 D.SDH網(wǎng)元與網(wǎng)管網(wǎng)元的以太網(wǎng)通信
A.光口輸出抖動(dòng) B.光口輸入抖動(dòng)容限 C.光口頻偏 D.眼圖