ccna 200 301 syllabus uaeh gestion des

ccna 200 301 syllabus uaeh gestion des.Successrate is 100 percent(20/20), round-trip min/avg/max == 12/23/48 ms RI#6. traceroute commandThe ping command can be used to test the connectivity of the network. If the network is not working, the ping command cannot locate which intermediate device is the problem.In this case, you can use the traceroute command to test which intermediate devices are passed and where the problem lies. Execute "traceroute" on router R123.1.1.3" command on router R1, the result is shown in Figure 4-4-3 ± half, we can send, 113Ui Chapter 4 Cisco Router* 04The problem is found on the router 12Sympathy 1.2, at this time the following paragraph on the computer test is also carried out at the same time. The first time I saw the router, I was able to get to the router.Figure 4-4-3 Traceroute Testing on a RouterThe working principle of traceroute is: the sending device will set the TTL in the packet to 1, the packet will be dropped by the first hop router and return an error code message, according to which the source device determines the intermediate devices passed and the delay information, the source device generally sends 3 duplicate packets, in Figure 4-4-3, you can see 3 return times " 112.1.1.212msec36msec12msec"; the source device then sends a packet with TTL 2 and then sends a packet with TTL 3 until it reaches the target device or until the TTL reaches 30. Under normal circumstances, the TTL will not exceed 30 to reach the destination device, except in the presence of a routing loop, when the TTL increases to 30.