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Some efforts have been taken to generalize the Internet architecture by treating content as a primitive instead of focusing on endpoint addresses of hosts because today's network is increasingly dominated by content distribution. One of the representative works in such aspect is known as Content-Centric Networking (CCN), which reuses the existing functions in IS-IS or OSPF for interworking between the content routers. This paper however shows that CCN architecture may yield the excessive maintenance overhead even though the network size is small due to the fact that the routing decision in CCN router is made upon the Longest Prefix Matching (LPM) method that is widely exploited in the existing IP routers.
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