cisco 200 301 book volume 2

cisco 200 301 book volume 2.IOS> ping 192.168.1.10Type escape sequence to abort. sending 5, 100-byte ICMP Echos to 192.168.1.10,Timeout is 2 seconds:Success rate is 100 percent (5/5), round-trip min/avg/max = 2/4/6 ms.In this example, five test packets are sent to the target device, and the target device responds to all of them, using the exclamation point (!) ). The default timeout is 2 seconds - if no response to the packet is received from the target device during this time, a period (.) is displayed Table 16.4 lists the ping messages you may see in the output ° The success rate is indicated at the end of the output: how many responses were received and the shortest, longest, and average round-trip times (in milliseconds) for the ping packets sent. This information can be used to determine if there is a delay between the current device and the target device.Exam Point Be sure to familiarize yourself with the output descriptors used by the command ping listed in Table 16.4.You may see periods (.) in the output for one of two reasons: the response was received after the timeout period had expired; no response was received at all. If a response is received after the timeout period has expired, it may be due to the need to perform ARP to learn the MAC address of a connected device, or congestion, which can occur in multiple segments. Come see two kinds: .!!!!Chapter 16 Managing IOS Devices 407and !!!! ; if the device must perform ARP to learn the MAC address of the next-hop device, you will typically see the first output; if the output is similar to the second, it indicates that there may be congestion or performance problems.