internet_router_map_planetlab-20030412 (04/12/2003 to 04/21/2003)

This Router-level map of the Internet was compiled in Spring 2003 by active tracerouting from PlanetLab machines. It was further refined in the next 3 months by alias resolution process done from ISI.本互联网路由器级映射（Router-level map）于2003年春季通过在PlanetLab节点上发起主动路由追踪（active tracerouting）操作构建完成。随后的三个月内，依托ISI完成的别名解析流程，该映射得到了进一步细化完善。