Abstract: A water environmental DNA collection apparatus, including a lower box body and collection components, where a clear water chamber, a motor chamber, a water pump chamber and a power supply chamber are provided in the lower box body, a motor is provided in the motor chamber, a water pump is provided in the water pump chamber, the lower box body is fixedly connected with a first filtering mechanism, the water pump communicates with the first filtering mechanism, a support column is fixedly connected outside the lower box body, and a turntable is fixedly connected with the support column; and a plurality of groups of collection components are provided, each collection component includes a press filter, a cylinder and a bottom shell, a transverse plate is fixedly connected inside the cylinder, the cylinder is divided into a filter pressing chamber and a filtering chamber through the transverse plate.

Abstract: A method for identifying a Stream Control Transmission Protocol (SCTP) packet is provided, which includes: acquiring a feature tuple of a received SCTP packet, in which the feature tuple includes at least one piece of the following information: a source Internet Protocol (IP) address, a destination IP address, and a verification tag (V_tag); matching the acquired feature tuple of the SCTP packet with a SCTP tuple identification table, in which the SCTP tuple identification table includes a mapping relation between a feature set tuple and an SCTP association, and the feature set tuple includes at least one piece of the following information: a source IP address set, a destination IP address set, and the V_tag; and acquiring an SCTP association to which the SCTP packet belongs, if the acquired feature tuple of the SCTP packet matches one or more records of the SCTP tuple identification table.

Abstract: A method for identifying a Stream Control Transmission Protocol (SCTP) packet is provided, which includes: acquiring a feature tuple of a received SCTP packet, in which the feature tuple includes at least one piece of the following information: a source Internet Protocol (IP) address, a destination IP address, and a verification tag (V_tag); matching the acquired feature tuple of the SCTP packet with a SCTP tuple identification table, in which the SCTP tuple identification table includes a mapping relation between a feature set tuple and an SCTP association, and the feature set tuple includes at least one piece of the following information: a source IP address set, a destination IP address set, and the V_tag; and acquiring an SCTP association to which the SCTP packet belongs, if the acquired feature tuple of the SCTP packet matches one or more records of the SCTP tuple identification table.