A.100M B.155M C.622M D.1G
A.ATM B.SDH C.DWDM D.以太網(wǎng)交換技術(shù)
A.封裝協(xié)議 B.虛級(jí)聯(lián) C.鏈路容量調(diào)整機(jī)制(LCAS) D.載波監(jiān)聽(tīng)多路訪問(wèn)及沖突檢測(cè)技術(shù)