A.An update packet with init flag set from a known, already established neighbor relationship was received by one of the routers.
B.The ARP cache was cleared.
C.The counters were cleared.
D.The IP EIGRP neighbor relationship was cleared manually.
簡(jiǎn)述相同的網(wǎng)段的互相訪問(wèn)問(wèn)題。