CAIDA UCSD IPv4 Routed /24 Topology

This dataset contains information useful for studying the topology of the Internet. Data is collected by a globally distributed set of Ark monitors. The monitors use team-probing to distribute the work of probing the destinations among the available monitors. We collect data by sending scamper probes continuously to destination IP addresses. Destinations are selected randomly from each routed IPv4 /24 prefix on the Internet such that a random address in each prefix is probed approximately every 24 hours (one probing cycle). Because team-probing distributes the probing work across all monitors, a single destination /24 will be probed by only one monitor in each probing cycle.本数据集包含可用于研究互联网拓扑结构的相关信息。数据由全球分布式部署的Ark监测节点（Ark monitors）采集。这些监测节点采用团队探测（team-probing）机制，将目标探测任务分配至所有可用监测节点。我们通过持续向目标IP地址发送scamper探测包来采集数据。目标地址从互联网上所有已路由的IPv4 /24前缀中随机选取，确保每个前缀内的一个随机地址约每24小时（即一个探测周期）被探测一次。由于团队探测机制将探测任务分发至所有监测节点，因此在每个探测周期内，单个目标/24前缀仅会被一台监测节点执行探测。

搜集汇总

背景与挑战

背景概述

该数据集是一个IPv4路由拓扑数据集，由CAIDA组织维护，用于研究互联网IP和AS拓扑结构。数据自2007年起持续收集，通过全球分布的Ark监测器进行团队探测，每24小时探测每个IPv4 /24前缀，总大小达23.62 TB。数据以warts格式存储，包含IPv4路径和往返时间等信息，访问分为公开和受限两部分。