Set timestamp type and precision during capture

    1. # tcpdump --time-stamp-precision=nano
    2. tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    3. 17:53:08.669795918 IP 192.168.35.211.ssh > 10.217.133.115.56843: Flags [P.], seq 2946671030:2946671138, ack 2526798027, win 317, length 108
    4. 17:53:08.670069187 IP 192.168.35.211.ssh > 10.217.133.115.56843: Flags [P.], seq 108:144, ack 1, win 317, length 36
    5. 17:53:08.670267764 IP 192.168.35.211.ssh > 10.217.133.115.56843: Flags [P.], seq 204:272, ack 1, win 317, length 68
    6. 17:53:08.670356638 IP 192.168.35.211.ssh > 10.217.133.115.56843: Flags [P.], seq 272:340, ack 1, win 317, length 68
    7. ......