例21.3（续 ping fhda.edu PING fhda.edu(153.18.8.1)56(84)bytes of data. 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=0 ttl=62 time=1.91 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=1 ttl=62 time=2.04 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=2 ttl=62 time=1.90 ms 64 bytes from tiptoe.fhda.edu (153.18.8.1):icmp_seq=3 ttl=62 time=1.97 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=4 ttl=62 time=1.93 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=5 ttl=62 time=2.00 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=6 ttl=62 time=1.94 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=7 ttl=62 time=1.94 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=8 ttl=62 time=1.97 ms 64 bytes from tiptoe.fhda.edu (153.18.8.1):icmp_seq=9 ttl=62 time=1.89 ms 64 bytes from tiptoe.fhda.edu(153.18.8.1):icmp_seq=10 tt1=62 time=1.98 ms - fhda.edu ping statistics- 11 packets transmitted,11 received,0%packet loss,time 10103ms rtt min/avg/max 1.899/1.955/2.041 ms 21.3021.30 例 21.3 (续)