Internet Layer Connection Measurement Method Using Internet Group Management Protocol Message and Related Topology

Abstract

By using the Internet layer connection measurement method of the Internet group management protocol message and the related topology, the detection message in the prior art is easily identified as an attack behavior and filtered, which destroys the integrity of the topology measurement. The method of the present invention includes: determining a measurement range represented by a group of Internet protocol IP address blocks, and selecting a group of router interface IP addresses as the measurement target address set from within the measurement range; for each IP address in the target address set , fill in the IP detection message that encapsulates the Internet Group Management Protocol IGMP Neighbor Solicitation type message, and then send the detection message; receive the response message within a given time, then implement the processing of the response message according to the response message type ; If no response message is received within a given period of time, the waiting time will be timed out; according to the measured IP connection and alias information, an IP-level or router-level network topology map can be constructed. The invention is used for the measurement method of anti-filtering in IP network.

Description

Technical field:

[0001] The invention relates to an Internet layer connection measurement method using an Internet group management protocol message and related IP-level topology and router-level topology. Background technique:

[0002] The traditional method of measuring Internet Protocol IP connection and network topology mainly adopts the measurement method of traceroute mechanism. First, a detection message with TTL=1 is sent from the measurement source point S to a certain measurement target D, and the returned ICMP timeout message is received. , or wait for a predetermined time t 0 (for example, 5 seconds), then send a message with TTL=2, and so on, until a message indicating that the target is reached is received from the detection target, or the TTL increases to a predetermined threshold (for example, 30). At this point, the path detection process for the measurement target D ends. According to the source IP addresses contained in the returned packets in turn, the ...