| 摘要 |
For many years yet, subscriber access to the network, for all but a few business sites will be on copper using the existing STM infrastructure. From this has been developed a bridging interface between an STM network and an ATM network. In this interface the information is carried in cells in fixed-size multi-octet timeslots, the cells being concatenated into packets having a two-octet header, the header including an address field, the packet size and a header parity bit. The header further includes a type field for use by external Adaption Layer Units. <IMAGE> |
