-bash-2.05b$ netstat -s
tcp:
        352708553 packets sent
                284611637 data packets (1786112092 bytes)
                3682162 data packets (1444233990 bytes) retransmitted
                150327 data packets unnecessarily retransmitted
                865 resends initiated by MTU discovery
                63129363 ack-only packets (62945232 delayed)
                0 URG only packets
                335 window probe packets
                1468 window update packets
                1353604 control packets
        418995899 packets received
                257945755 acks (for 1817017403 bytes)
                12039218 duplicate acks
                7 acks for unsent data
                205736991 packets (3933536656 bytes) received in-sequence
                1387856 completely duplicate packets (22891026 bytes)
                0 old duplicate packets
                228954 packets with some dup. data (4281637 bytes duped)
                0 out-of-order packets (0 bytes)
                6 packets (0 bytes) of data after window
                0 window probes
                46241 window update packets
                34614 packets received after close
                0 discarded for bad checksums
                0 discarded for bad header offset fields
                0 discarded because packet too short
        21 connection requests
        2222005 connection accepts
        123808 bad connection attempts
        0 listen queue overflows
        27224 ignored RSTs in the windows
        2222020 connections established (including accepts)
        2219455 connections closed (including 1074338 drops)
                1927414 connections updated cached RTT on close
                2032580 connections updated cached RTT variance on close
                574685 connections updated cached ssthresh on close
        0 embryonic connections dropped
        241492927 segments updated rtt (of 244250833 attempts)
        4108743 retransmit timeouts
                104444 connections dropped by rexmit timeout
        343 persist timeouts
                3 connections dropped by persist timeout
        289650 keepalive timeouts
                258902 keepalive probes sent
                30748 connections dropped by keepalive
        4146417 correct ACK header predictions
        145070901 correct data packet header predictions
        2222114 syncache entries added
                298 retransmitted
                349 dupsyn
                4 dropped
                2222005 completed
                0 bucket overflow
                0 cache overflow
                11 reset
                0 stale
                0 aborted
                0 badack
                98 unreach
                0 zone failures
        0 cookies sent
        0 cookies received
        45736 SACK recovery episodes
        7 segment rexmits in SACK recovery episodes
        3116 byte rexmits in SACK recovery episodes
        190 SACK options (SACK blocks) received
        0 SACK options (SACK blocks) sent
        0 SACK scoreboard overflow
udp:
        675461 datagrams received
        0 with incomplete header
        0 with bad data length field
        0 with bad checksum
        3771 with no checksum
        36 dropped due to no socket
        1352 broadcast/multicast datagrams dropped due to no socket
        312 dropped due to full socket buffers
        0 not for hashed pcb
        673761 delivered
        2525517 datagrams output
ip:
        420507905 total packets received
        0 bad header checksums
        0 with size smaller than minimum
        0 with data size < data length
        0 with ip length > max ip packet size
        0 with header length < data size
        0 with data length < header length
        0 with bad options
        0 with incorrect version number
        0 fragments received
        0 fragments dropped (dup or out of space)
        0 fragments dropped after timeout
        0 packets reassembled ok
        419671454 packets for this host
        836451 packets for unknown/unsupported protocol
        0 packets forwarded (0 packets fast forwarded)
        0 packets not forwardable
        0 packets received for unknown multicast group
        0 redirects sent
        355710817 packets sent from this host
        1 packet sent with fabricated ip header
        70024 output packets dropped due to no bufs, etc.
        0 output packets discarded due to no route
        0 output datagrams fragmented
        0 fragments created
        0 datagrams that can't be fragmented
        0 tunneling packets that can't find gif
        0 datagrams with bad address in header
icmp:
        0 calls to icmp_error
        0 errors not generated in response to an icmp message
        0 messages with bad code fields
        0 messages < minimum length
        0 bad checksums
        0 messages with bad length
        0 multicast echo requests ignored
        0 multicast timestamp requests ignored
        Input histogram:
                echo reply: 15
                destination unreachable: 832580
                source quench: 29
                routing redirect: 1052
                time exceeded: 2868
        0 message responses generated
        0 invalid return addresses
        0 no return routes
        ICMP address mask responses are disabled
igmp:
        0 messages received
        0 messages received with too few bytes
        0 messages received with bad checksum
        0 membership queries received
        0 membership queries received with invalid field(s)
        0 membership reports received
        0 membership reports received with invalid field(s)
        0 membership reports received for groups to which we belong
        0 membership reports sent
Warning: sysctl(net.inet6.ip6.rip6stats): No such file or directory
-bash-2.05b$