# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1f:c6:eb:71:43
          inet addr:10.0.0.106  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::21f:c6ff:feeb:7143/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:120 (120.0 B)  TX bytes:468 (468.0 B)
          Interrupt:18

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

# ping -c5 10.0.0.1
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_req=1 ttl=64 time=0.823 ms
64 bytes from 10.0.0.1: icmp_req=2 ttl=64 time=0.856 ms
64 bytes from 10.0.0.1: icmp_req=3 ttl=64 time=0.831 ms
64 bytes from 10.0.0.1: icmp_req=4 ttl=64 time=0.824 ms
64 bytes from 10.0.0.1: icmp_req=5 ttl=64 time=0.830 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3998ms
rtt min/avg/max/mdev = 0.823/0.832/0.856/0.038 ms

# ping -c5 -s86 10.0.0.1
PING 10.0.0.1 (10.0.0.1) 86(114) bytes of data.
94 bytes from 10.0.0.1: icmp_req=1 ttl=64 time=1.25 ms
94 bytes from 10.0.0.1: icmp_req=2 ttl=64 time=0.861 ms
94 bytes from 10.0.0.1: icmp_req=3 ttl=64 time=0.895 ms
94 bytes from 10.0.0.1: icmp_req=4 ttl=64 time=0.868 ms
94 bytes from 10.0.0.1: icmp_req=5 ttl=64 time=0.864 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3998ms
rtt min/avg/max/mdev = 0.861/0.949/1.259/0.157 ms
# ethtool -S eth0
NIC statistics:
     tx_bytes: 5651
     rx_bytes: 78580
     tx_broadcast: 1
     rx_broadcast: 5
     tx_multicast: 6
     rx_multicast: 0
     tx_unicast: 60
     rx_unicast: 75
     tx_mac_pause: 0
     rx_mac_pause: 0
     collisions: 0
     late_collision: 0
     aborted: 0
     single_collisions: 0
     multi_collisions: 0
     rx_short: 0
     rx_runt: 0
     rx_64_byte_packets: 9
     rx_65_to_127_byte_packets: 12
     rx_128_to_255_byte_packets: 9
     rx_256_to_511_byte_packets: 0
     rx_512_to_1023_byte_packets: 0
     rx_1024_to_1518_byte_packets: 50
     rx_1518_to_max_byte_packets: 0
     rx_too_long: 0
     rx_fifo_overflow: 0
     rx_jabber: 0
     rx_fcs_error: 0
     tx_64_byte_packets: 4
     tx_65_to_127_byte_packets: 55
     tx_128_to_255_byte_packets: 8
     tx_256_to_511_byte_packets: 0
     tx_512_to_1023_byte_packets: 0
     tx_1024_to_1518_byte_packets: 0
     tx_1519_to_max_byte_packets: 0
     tx_fifo_underrun: 0