EPL：即以太網(wǎng)專線，實(shí)現(xiàn)點(diǎn)對點(diǎn)業(yè)務(wù)（即相當(dāng)于透傳）；

EVPL：即以太網(wǎng)虛擬專線，實(shí)現(xiàn)點(diǎn)對點(diǎn)業(yè)務(wù)；

EPTREE：即以太網(wǎng)專樹，實(shí)現(xiàn)多點(diǎn)到點(diǎn)的匯聚型業(yè)務(wù)；

EVPTREE：即以太網(wǎng)虛擬專樹，實(shí)現(xiàn)多點(diǎn)到點(diǎn)的匯聚型業(yè)務(wù)；

EPLAN：即以太網(wǎng)專網(wǎng)，實(shí)現(xiàn)多點(diǎn)到多點(diǎn)的以太網(wǎng)業(yè)務(wù)；

EVPLAN：即以太網(wǎng)虛擬專網(wǎng)，實(shí)現(xiàn)多點(diǎn)到多點(diǎn)的以太網(wǎng)業(yè)務(wù)。