A geographical identification forwarding method for area-oriented addressing. The geographic location information is used as a transmission identification, and the communication process based on the geographical identification is realized by constructing the SDN-based geographical identification transmission architecture. In this method, a geographical identification is used instead of a traditional IP identification for network transmission, which effectively alleviates the problem of narrow waist of IP single bearing in the current network. At the same time, through a flow table decomposition design, the flow table size of the switch is effectively controlled. The method provided by the present invention can be extended to a plurality of geographical identification areas to realize large-area real-time cross-domain transmission. The method is simple to operate, easy to realize and high in real-time; the method has a wide application range, and can be used to build new networks and improve network performance.

A geographical identification forwarding method for area-oriented addressing. The geographic location information is used as a transmission identification, and the communication process based on the geographical identification is realized by constructing the SDN-based geographical identification transmission architecture. In this method, a geographical identification is used instead of a traditional IP identification for network transmission, which effectively alleviates the problem of narrow waist of IP single bearing in the current network. At the same time, through a flow table decomposition design, the flow table size of the switch is effectively controlled. The method provided by the present invention can be extended to a plurality of geographical identification areas to realize large-area real-time cross-domain transmission. The method is simple to operate, easy to realize and high in real-time; the method has a wide application range, and can be used to build new networks and improve network performance.

A network device provides a search key corresponding to a packet to a TCAM. The TCAM determines that the search key matches one or more search patterns stored in the TCAM. The network device selects one search pattern among the one or more search patterns at least by analyzing respective priority information associated with the one or more search patterns. The respective priority information indicates one or more respective priority levels that are independent from one or more physical locations of the one or more search patterns within the TCAM. In connection with selecting the one search pattern, the network device determines one or more actions to be performed on the packet by the network device, the one or more actions corresponding to the selected one search pattern.

In one embodiment, a method is provided. The method includes receiving a data packet via an ingress interface of the network device. The method also includes determining whether the data packet comprises an Internet Protocol version 4 (IPV4) or an Internet Protocol version 6 (IPV6) packet. The method further includes in response to determining that the packet comprises an IPV4 packet, identifying a first entry in an adjacency table. The first entry is associated with an address prefix. The address prefix is associated with first Internet Protocol (IP) address of the data packet. The first entry indicates a next hop for the data packet. The adjacency table comprises a second entry associated with the address prefix. The method further includes forwarding the packet to the next hop indicated by the first entry in the adjacency table, via an egress interface of the network device.

In one embodiment, a method is provided. The method includes receiving a data packet via an ingress interface of the network device. The method also includes determining whether the data packet comprises an Internet Protocol version 4 (IPV4) or an Internet Protocol version 6 (IPV6) packet. The method further includes in response to determining that the packet comprises an IPV4 packet, identifying a first entry in an adjacency table. The first entry is associated with an address prefix. The address prefix is associated with first Internet Protocol (IP) address of the data packet. The first entry indicates a next hop for the data packet. The adjacency table comprises a second entry associated with the address prefix. The method further includes forwarding the packet to the next hop indicated by the first entry in the adjacency table, via an egress interface of the network device.

The systems and methods discussed herein provide for classifying CDN connections to the originating application on the first packet. In some implementations, the system identifies application connections established within a predetermined time period prior to the CDN connection and increments a value associated with these connections. The system classifies the CDN connection as corresponding to the application connection with the highest associated value, allowing routing of network traffic to take advantage of QoS benefits and reduce the need for deep packet inspection.

The systems and methods discussed herein provide for classifying CDN connections to the originating application on the first packet. In some implementations, the system identifies application connections established within a predetermined time period prior to the CDN connection and increments a value associated with these connections. The system classifies the CDN connection as corresponding to the application connection with the highest associated value, allowing routing of network traffic to take advantage of QoS benefits and reduce the need for deep packet inspection.

A traffic forwarding method includes determining, by a first network device, a first address resolution protocol (ARP) entry of the access device, where the first ARP entry is used to indicate a mapping relationship among a media access control (MAC) address, an Internet Protocol (IP) address, and an egress port, the egress port includes a standby egress port, and the first network device is connected to the protection link through the standby egress port, receiving traffic sent by a network side, determining whether a fault exists in the first multi-chassis link aggregation group (MC-LAG) link, and when the first network device determines that a fault exists in the first MC-LAG link, sending the traffic to the second network device through the protection link based on a standby egress port number in the first ARP entry, where the standby egress port number is used to indicate the standby egress port.

A method and device for processing routing table entries are provided. The method includes: determining a first portion and a second portion in a network portion of an ipv6 address and a first virtual route forwarding instance identifier corresponding to the ipv6 address, the first portion being high 32 bits of the network portion and the second portion being low 32 bits of the network portion; combining the first portion and the first virtual route forwarding instance identifier to obtain first combined information, determining a first prefix index corresponding to the first combined information, and combining the second portion and the first prefix index to obtain second combined information; and correspondingly storing the first combined information and the first prefix index in a first routing table as routing table entry in the first routing table, and storing the second combined information in a second routing table as routing table entry in the second routing table. The problem of waste of storage resources for ipv6 route storage in the related art is solved.

A method and device for processing routing table entries are provided. The method includes: determining a first portion and a second portion in a network portion of an ipv6 address and a first virtual route forwarding instance identifier corresponding to the ipv6 address, the first portion being high 32 bits of the network portion and the second portion being low 32 bits of the network portion; combining the first portion and the first virtual route forwarding instance identifier to obtain first combined information, determining a first prefix index corresponding to the first combined information, and combining the second portion and the first prefix index to obtain second combined information; and correspondingly storing the first combined information and the first prefix index in a first routing table as routing table entry in the first routing table, and storing the second combined information in a second routing table as routing table entry in the second routing table. The problem of waste of storage resources for ipv6 route storage in the related art is solved.