What information do OSPF hello packets contain?()<br /> <img src="https://img.ppkao.com/2018-08/gelingxia/2018080817375429092.jpg" /><p> What information do OSPF hello packets contain?()<br /> <img src="https://img.ppkao.com/2018-08/gelingxia/2018080817375429092.jpg" /></p>
A、A.A
B、B.B
C、C.C
D、D.D
E、E.E