Packet processing apparatus and method capable of generating modified packets by modifying payloads of specific packets identified from received packets

摘要

A packet processing apparatus includes a packet identifying unit and a packet modifying unit. The packet identifying unit is utilized for receiving a plurality of packets and checking identification information and data length information which are derived from the received packets to identify first packets from the received packets. The packet modifying unit is coupled to the packet identifying unit, and is utilized for checking payloads of the first packets to identify second packets from the first packets, where each of the second packets has specific data included in a payload thereof, and for modifying at least the payload of each of the second packets.

主权项

1. A packet processing apparatus, comprising:
a packet identifying unit, for receiving a plurality of packets and checking identification information and data length information which are derived from the received packets to identify first packets from the received packets; and a packet modifying unit, coupled to the packet identifying unit, for checking payloads of the first packets that are identified from the received packets to identify second packets from the first packets, where each of the second packets has specific data included in a payload thereof, and for modifying at least the payload of each of the second packets that are identified and selected from the first packets; wherein any packet in the first packets that is not selected as a second packet is not modified by the packet modifying unit, a payload of each of the first packets carries data of a table section, and a payload of each of the second packets carries data of at least one descriptor of the table section.