计算机科学 ›› 2017, Vol. 44 ›› Issue (7): 68-73.doi: 10.11896/j.issn.1002-137X.2017.07.012
耿海军,施新刚,王之梁,尹霞,尹少平
GENG Hai-jun, SHI Xin-gang, WANG Zhi-liang, YIN Xia and YIN Shao-ping
摘要： 当网络中的某条链路出现故障时,互联网部署的域内路由协议需要重新收敛,在收敛过程中经过该链路的报文将会被丢弃。针对该问题,IETF(the Internet Engineering Task Force)提出了快速重路由保护框架,利用该框架可以有效地解决网络中单链路故障造成的报文丢失问题,然而该方案并不能完全保护网络中所有可能的单链路故障。基于该框架研究者提出了一种基于隧道的解决方案,该方案虽然可以提供100%的单链路故障保护,但是需要辅助机制的协助,开销较大,难以实际部署。因此,提出了一种基于逐跳方式的针对单链路故障的全保护方案,该方案可以解决网络中任意的单链路故障造成的报文丢失问题。
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