| 摘要 |
<p>A packet switch device is provided with a forwarding process unit (112-n) that determines an address for an input packet and outputs it as an output packet, an ingress interface card (115) that checks whether the input packet has a sequential patrol number, and an egress interface card (116) that generates a sequential patrol number and grants it to the output packet. The ingress interface card and the egress interface card are provided with a first memory interface unit (408, 508) and a second memory interface unit (409, 509) that carry out two dividing processes by doing one access process for check managing memories (407, 507) at continuing first and second memory access points (n, n+1), respectively, thereby making it possible to complete necessary processing in several clock cycles that are allowed at one-time table access by the forwarding process unit.</p> |
