Autonomous systems graphs

The graph of routers comprising the Internet can be organized into sub-graphs called Autonomous Systems (AS). Each AS exchanges traffic flows with some neighbors (peers). We can construct a communication network of who-talks-to- whom from the BGP (Border Gateway Protocol) logs.构成互联网的路由器互联拓扑图可被划分为若干被称为自治系统（Autonomous Systems，AS）的子图。每个自治系统均会与部分邻居（对等节点，peers）交换流量流。我们可从边界网关协议（Border Gateway Protocol，BGP）日志中构建出反映"谁与谁通信"的通信网络。