[FUG-BR] freebsd 8.2 - tuning de rede

[kmkz bleh]

Tenho ainda o seguinte, que creio poderá ajudar:

gw# netstat -s
tcp:
        31195 packets sent
                14892 data packets (3236025 bytes)
                24 data packets (3417 bytes) retransmitted
                5 data packets unnecessarily retransmitted
                0 resends initiated by MTU discovery
                15357 ack-only packets (3043 delayed)
                0 URG only packets
                0 window probe packets
                4 window update packets
                918 control packets
        50425 packets received
                13669 acks (for 3236988 bytes)
                60 duplicate acks
                0 acks for unsent data
                28773 packets (21583175 bytes) received in-sequence
                24 completely duplicate packets (6258 bytes)
                0 old duplicate packets
                0 packets with some dup. data (0 bytes duped)
                0 out-of-order packets (0 bytes)
                0 packets (0 bytes) of data after window
                0 window probes
                7 window update packets
                755 packets received after close
                2315 discarded for bad checksums
                0 discarded for bad header offset fields
                0 discarded because packet too short
                0 discarded due to memory problems
        34 connection requests
        859 connection accepts
        0 bad connection attempts
        0 listen queue overflows
        0 ignored RSTs in the windows
        891 connections established (including accepts)
        888 connections closed (including 15 drops)
                0 connections updated cached RTT on close
                0 connections updated cached RTT variance on close
                0 connections updated cached ssthresh on close
        0 embryonic connections dropped
        11681 segments updated rtt (of 12336 attempts)
        23 retransmit timeouts
                0 connections dropped by rexmit timeout
        0 persist timeouts
                0 connections dropped by persist timeout
        0 Connections (fin_wait_2) dropped because of timeout
        1 keepalive timeout
                1 keepalive probe sent
                0 connections dropped by keepalive
        571 correct ACK header predictions
        27243 correct data packet header predictions
        866 syncache entries added
                12 retransmitted
                6 dupsyn
                0 dropped
                859 completed
                0 bucket overflow
                0 cache overflow
                5 reset
                2 stale
                0 aborted
                0 badack
                0 unreach
                0 zone failures
        866 cookies sent
        0 cookies received
        3 SACK recovery episodes
        3 segment rexmits in SACK recovery episodes
        152 byte rexmits in SACK recovery episodes
        21 SACK options (SACK blocks) received
        0 SACK options (SACK blocks) sent
        0 SACK scoreboard overflow
        0 packets with ECN CE bit set
        0 packets with ECN ECT(0) bit set
        0 packets with ECN ECT(1) bit set
        0 successful ECN handshakes
        0 times ECN reduced the congestion window
udp:
        2028890 datagrams received
        0 with incomplete header
        0 with bad data length field
        325 with bad checksum
        567 with no checksum
        120167 dropped due to no socket
        12464 broadcast/multicast datagrams undelivered
        0 dropped due to full socket buffers
        0 not for hashed pcb
        1895934 delivered
        1897868 datagrams output
        0 times multicast source filter matched
ip:
        356136822 total packets received
        3 bad header checksums
        0 with size smaller than minimum
        3 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
        2110620 packets for this host
        1529 packets for unknown/unsupported protocol
        349766702 packets forwarded (0 packets fast forwarded)
        60184 packets not forwardable
        0 packets received for unknown multicast group
        0 redirects sent
        2018124 packets sent from this host
        0 packets sent with fabricated ip header
        11188 output packets dropped due to no bufs, etc.
        37905 output packets discarded due to no route
        603666 output datagrams fragmented
        3182271 fragments created
        0 datagrams that can't be fragmented
        0 tunneling packets that can't find gif
        1354 datagrams with bad address in header
icmp:
        57497 calls to icmp_error
        1383 errors not generated in response to an icmp message
        Output histogram:
                echo reply: 23587
                destination unreachable: 44059
                time exceeded: 12054
        0 messages with bad code fields
        0 messages less than the minimum length
        1408 messages with bad checksum
        0 messages with bad length
        2 multicast echo requests ignored
        0 multicast timestamp requests ignored
        Input histogram:
                echo reply: 6564
                destination unreachable: 2498
                echo: 23602
                time exceeded: 169
        23587 message responses generated
        0 invalid return addresses
        0 no return routes
        ICMP address mask responses are disabled
pfsync:
        0 packets received (IPv4)
        0 packets received (IPv6)
                0 packets discarded for bad interface
                0 packets discarded for bad ttl
                0 packets shorter than header
                0 packets discarded for bad version
                0 packets discarded for bad HMAC
                0 packets discarded for bad action
                0 packets discarded for short packet
                0 states discarded for bad values
                0 stale states
                0 failed state lookup/inserts
        0 packets sent (IPv4)
        0 packets sent (IPv6)
                0 send failed due to mbuf memory error
                0 send error
arp:
        58112 ARP requests sent
        28851 ARP replies sent
        44500 ARP requests received
        3397 ARP replies received
        47897 ARP packets received
        39805 total packets dropped due to no ARP entry
        26053 ARP entrys timed out
        0 Duplicate IPs seen