According to this picture, we can judge:
According to this picture, we can judge:
The IS-IS neighbor between R3 and R1 is not established. According to the information in this figure, what is the possible cause?
The network administrator A wants to use ACL to match only the four routing entries 1, 3.5, and 7 in the figure. How many ACL rules does the network administrator A need to configure at least?
As shown in the figure, an engineer uses 4 routers to test branch network interoperability. Among them, R1, R2, and R3 in branch 1 deploy OSPF to achieve network interoperability. R2, R3, and R4 in branch 2 deploy IS-S to achieve network interoperability.Now the engineer wants to realize the loopback address of R1 to R4. Which of the following operations can meet this requirement?
In order to speed up the perception of link failures in the IS-IS network, IS-IS can be linked with BFD.
