| 摘要 |
C .NRPonbl/DCC/TRN/2K761 1_1DOC2(f4/2012 A network device comprising: a forwarding engine, wherein 5 said forwarding engine comprises a lookup table, and a lookup table controller, coupled to said lookup table, said forwarding engine is configured to determine whether a packet is an inter-layer binding protocol packet by virtue of being configured to analyze a 10 header of said packet, said inter-layer binding protocol packet indicates an inter-layer binding between a first protocol layer address and a second protocol layer address, said first protocol layer address is at a first protocol layer, and said second protocol layer address is at a second protocol layer; and 15 an inspection engine, coupled to said forwarding engine, wherein said lookup table controller is configured to cause said forwarding engine to forward said packet to said inspection engine, if said forwarding engine determines said packet is said inter-layer binding protocol packet, and said inspection engine is configured to determine whether said inter-layer 20 binding is a legal inter-layer binding by virtue of being configured to inspect said inter-layer binding protocol packet. start Pass packet on for Receive packe further processing or forwardhngbI next network node destination 310 binding prooo packet? 33D Yes Analyze packet bas ad on filtering rules Is packet Tk cin T acceptable, basedon No Tk cini epne filtering rules? receipt of bad padt Yes Fig. 3 |
