As the main protocol of IGP (Internal Gateway protocol), the IS-IS routing protocol nowadays has been deployed widely in the Internet.

IS路由协议作为内部网关协议的主流协议，在现今的网络中有广泛的部署。

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Some weaknesses, already well-known to hackers, foreign governments and, most likely, jihadists, have been exposed in two areas: the Domain Name System that VeriSign oversees and the Border Gateway Protocol, which governs how Internet service providers and large networks exchange routing information.

FORBES: The Next Threat