Packet loss can cause network connections to seem sluggish because additional time is spent retransmitting dropped data. Use the –s option of the ping command to determine if packets between your host and a remote host are being dropped:
% ping -s hostname
In the following example, the ping -s hostname command continually sends packets to the specified host until you send an interrupt character or a time out occurs:
% ping -s host1.domain8 PING host1.domain8 : 56 data bytes 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=0. time=1.67 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=1. time=1.02 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=2. time=0.986 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=3. time=0.921 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=4. time=1.16 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=5. time=1.00 ms 64 bytes from host1.domain8.COM (172.16.83.64): icmp_seq=5. time=1.980 ms ^C ----host1.domain8 PING Statistics---- 7 packets transmitted, 7 packets received, 0% packet loss round-trip (ms) min/avg/max/stddev = 0.921/1.11/1.67/0.26
The packet-loss statistic indicates whether the host has any dropped packets. If the ping command indicates that there has been packet loss, check the status of the network by using the ipadm and netstat commands. Refer to Monitoring IP Interfaces and Addresses in Configuring and Administering Network Components in Oracle Solaris 11.2 and Monitoring Network Status With the netstat Command for more details.