ATM的地址长20个字节,可以寻址规模很大的网络。ATM分层寻址,类似于电话网,它使用与地址编码相似的前缀,并进行交换。ATM交换与连接的端站共享地址信息,并在路由表中保持端站地址。 ATM源地址和目的地址不包括在每个信元里,但要由建立虚通路和虚信道标识符(VPI/VCD使用。这说明 ATM address 20 bytes long, you can address a very large network. ATM layered addressing, similar to the telephone network, it uses a similar prefix and address encoding, and exchange. The ATM exchange shares the address information with the connected end station and maintains the end station address in the routing table. The ATM source and destination addresses are not included in each cell, but are used by the VPI / VCD to establish the virtual path and virtual channel identifier.