| 主权项 |
1. A method of processing an asynchronous transfer mode (ATM) cell of data into an ATM adaptation layer (AAL) packet, the method comprising:
identifying a first connection identifier (CID) of one or more minipackets in the ATM cell based on a source address and a destination address of the one or more minipackets in the ATM cell; reassembling the one or more minipackets having the first CID into one or more common part sublayer (CPS) packets; reassembling the one or more CPS packets having the first CID into a portion of a service specific segmentation and reassembly (SSSAR) conversation; determining, by a preprocessor, an occurrence of a trigger by:
identifying a second CID of one or more subsequent minipackets based on a source address and a destination address of the one or more subsequent minipackets; anddetermining whether the second CID differs from the first CID, and,
if so, generating the trigger;if not, checking an indication field of the one or more minipackets; anddetermining, based on the indication field of a selected minipacket, whether the selected minipacket is a last minipacket having the first CID, and, if so, generating the trigger,wherein the indication field is a part of an overhead bytes of the selected minipackets; in response to determining the occurrence of the trigger, sending the portion of the reassembled minipackets having the first CID to a destination processor. |
