题目内容

While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）

A. Some query or reply packets are lost between the routers
B. The neighboring router starts receiving route updates from this router
C. A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）
D. The neighboring router stops receiving ACK packets from this router

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