Ccna 00-301, Volume Official

Figure 18-1

  Concept Behind ping 172.16.2.101 on Host A

The ping command is supported on many different devices and many common operating 

systems. The command has many options: the name or IP address of the destination, how 

many times the command should send an echo request, how long the command should wait 

(timeout) for an echo reply, how big to make the packets, and many other options. Example 

18-1 shows a sample from host A, with the same command that matches the concept in 

Figure 18-1: a ping 172.16.2.101 command on host A.

Example 18-1

  Sample Output from Host A’s ping 172.16.2.101 Command

Wendell-Odoms-iMac:~ wendellodom$ ping 172.16.2.101

PING 172.16.2.101 (172.16.2.101): 56 data bytes

64 bytes from 172.16.2.101: icmp_seq=0 ttl=64 time=1.112 ms

64 bytes from 172.16.2.101: icmp_seq=1 ttl=64 time=0.673 ms

64 bytes from 172.16.2.101: icmp_seq=2 ttl=64 time=0.631 ms

64 bytes from 172.16.2.101: icmp_seq=3 ttl=64 time=0.674 ms

64 bytes from 172.16.2.101: icmp_seq=4 ttl=64 time=0.642 ms

64 bytes from 172.16.2.101: icmp_seq=5 ttl=64 time=0.656 ms

^C

--- 172.16.2.101 ping statistics ---

6 packets transmitted, 6 packets received, 0.0% packet loss

round-trip min/avg/max/stddev = 0.631/0.731/1.112/0.171 ms