A.網(wǎng)關(guān)網(wǎng)元是在通訊過程中充當(dāng)其它網(wǎng)元與網(wǎng)管通訊轉(zhuǎn)發(fā)的網(wǎng)元
B.網(wǎng)關(guān)網(wǎng)元在通訊過程中不能充當(dāng)其它網(wǎng)元與網(wǎng)管通訊轉(zhuǎn)發(fā)的網(wǎng)元
C.非網(wǎng)關(guān)網(wǎng)元不能設(shè)置多個網(wǎng)關(guān)網(wǎng)元管理
D.主備網(wǎng)關(guān)網(wǎng)元的切換工作由SOSC單板完成