An ultra-fast universal incremental update algorithm for trie-based routing lookup

Tong Yang, Zhian Mi, Ruian Duan, Xiaoyu Guo, Jianyuan Lu, Shenjiang Zhang, Xianda Sun, Bin Liu

Abstract: With the rapid growth of the Internet, the update messages in backbone routers become more and more frequent due to the ever-increasing dynamic changes on network topologies and new emerging functionalities of the Internet. In addition, update messages often come as a burst. Update action interrupts the packet lookup operation in the router's data plane, thus inefficient incremental update algorithm slows down IP lookup speed, and potentially badly degrades the system performance during bursty updates.