每周聚焦CWEEK自防御网络(Self-DefendingNetwork,SDN),听起来似乎和弹道导弹防御系统一样,承担着安危大任。确实,这两者都是保护安全的一种手段,只不过一种保护的是国家主权,而另一种保护的是互联网的主权。和国家主权一样,网络主权同样不容侵犯。面对大量网络入侵的威胁,网络 A weekly focus on the CWEEK Self-Defending Network (SDN) sounds as if it were a ballistic missile defense system, with a big stake. Indeed, both are a means of safeguarding security, except that one protects national sovereignty while the other protects the sovereignty of the Internet. Like national sovereignty, cyber sovereignty is equally inviolable. In the face of the threat of massive network intrusion, the network