How To Read netstat -s Output
How To Read netstat -s
The output of netstat varies from
one operating system to the next.
This variation goes beyond Linux versus Solaris,
different releases of the same kernel will have slightly
data structures.
Even the same kernel release will gain networking data
structures when kernel modules are loaded.
The -s option is intended to mean "statistics",
but "counters" is a far better explanation of what you see.
Amazon 0321336313
Amazon 013608530X
Jump to:
Linux 4.18.6 Linux 3.11.6 Linux 3.5.3
Historical Examples:
Linux 2.6.33 Linux 2.6.24 Linux 2.0.34
Linux
Linux 4.18.6 kernel
Ip:
Forwarding: 1
1904782 total packets received
2 with invalid addresses
277815 forwarded
0 incoming packets discarded
1619432 incoming packets delivered
941012 requests sent out
4 outgoing packets dropped
1330 reassemblies required
602 packets reassembled ok
Icmp:
121 ICMP messages received
3 input ICMP message failed.
ICMP input histogram:
destination unreachable: 26
echo requests: 80
echo replies: 15
221 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 126
echo request: 15
echo replies: 80
IcmpMsg:
InType0: 15
InType3: 26
InType8: 80
OutType0: 80
OutType3: 126
OutType8: 15
Tcp:
17628 active connections openings
345 passive connection openings
53 failed connection attempts
3115 connection resets received
70 connections established
1961333 segments received
3073353 segments send out
726 segments retransmited
49 bad segments received.
6461 resets sent
Udp:
150210 packets received
23 packets to unknown port received.
0 packet receive errors
99067 packets sent
0 receive buffer errors
0 send buffer errors
IgnoredMulti: 9
UdpLite:
TcpExt:
48 resets received for embryonic SYN_RECV sockets
7072 TCP sockets finished time wait in fast timer
1 packets rejects in established connections because of timestamp
10839 delayed acks sent
1 delayed acks further delayed because of locked socket
Quick ack mode was activated 306 times
568901 packet headers predicted
71343 acknowledgments not containing data payload received
1193402 predicted acknowledgments
TCPSackRecovery: 23
Detected reordering 80 times using SACK
Detected reordering 1 times using reno fast retransmit
4 congestion windows fully recovered without slow start
TCPDSACKUndo: 1
116 congestion windows recovered without slow start after partial ack
TCPLostRetransmit: 31
TCPSackFailures: 6
29 fast retransmits
TCPTimeouts: 247
TCPLossProbes: 424
TCPLossProbeRecovery: 339
TCPDSACKOldSent: 306
TCPDSACKRecv: 14
1321 connections reset due to unexpected data
2503 connections reset due to early user close
4 connections aborted due to timeout
TCPDSACKIgnoredNoUndo: 8
TCPSackShifted: 3
TCPSackMerged: 12
TCPSackShiftFallback: 121
TCPDeferAcceptDrop: 208
TCPRcvCoalesce: 150790
TCPOFOQueue: 459
TCPChallengeACK: 65
TCPSYNChallenge: 49
TCPAutoCorking: 12268
TCPFromZeroWindowAdv: 19
TCPToZeroWindowAdv: 19
TCPWantZeroWindowAdv: 78
TCPSynRetrans: 166
TCPOrigDataSent: 2477821
TCPHystartTrainDetect: 3
TCPHystartTrainCwnd: 48
TCPHystartDelayDetect: 1
TCPHystartDelayCwnd: 20
TCPACKSkippedSeq: 9
TCPACKSkippedChallenge: 18
TCPKeepAlive: 19278
TCPDelivered: 2494308
TCPAckCompressed: 274
IpExt:
InMcastPkts: 15531
OutMcastPkts: 4730
InBcastPkts: 11
InOctets: 756569079
OutOctets: 3730975932
InMcastOctets: 2446544
OutMcastOctets: 960617
InBcastOctets: 3822
InNoECTPkts: 2070826
InECT0Pkts: 7
InCEPkts: 1
Linux 3.11.6 kernel
Ip:
10186913 total packets received
4572649 forwarded
0 incoming packets discarded
5586516 incoming packets delivered
8731045 requests sent out
1475 reassemblies required
686 packets reassembled ok
9 fragments received ok
497 fragments failed
26 fragments created
Icmp:
2707 ICMP messages received
94 input ICMP message failed.
InCsumErrors: 22
ICMP input histogram:
destination unreachable: 2505
timeout in transit: 168
echo requests: 12
28928 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 28914
echo request: 2
echo replies: 12
IcmpMsg:
InType3: 2505
InType8: 12
InType11: 168
OutType0: 12
OutType3: 28914
OutType8: 2
Tcp:
72751 active connections openings
150275 passive connection openings
8389 failed connection attempts
2543 connection resets received
7 connections established
5435862 segments received
4377999 segments send out
108568 segments retransmited
227 bad segments received.
428135 resets sent
InCsumErrors: 5
Udp:
119466 packets received
28417 packets to unknown port received.
1 packet receive errors
107657 packets sent
InCsumErrors: 1
UdpLite:
TcpExt:
273808 invalid SYN cookies received
1593 resets received for embryonic SYN_RECV sockets
1 packets pruned from receive queue because of socket buffer overrun
26264 TCP sockets finished time wait in fast timer
37 active connections rejected because of time stamp
56 packets rejects in established connections because of timestamp
42475 delayed acks sent
33 delayed acks further delayed because of locked socket
Quick ack mode was activated 4888 times
1 SYNs to LISTEN sockets ignored
796 packets directly queued to recvmsg prequeue.
2071380 packets directly received from prequeue
3568259 packets header predicted
458 packets header predicted and directly queued to user
604767 acknowledgments not containing data received
319995 predicted acknowledgments
13332 times recovered from packet loss due to SACK data
3 bad SACKs received
Detected reordering 1 times using FACK
Detected reordering 30 times using time stamp
4 congestion windows fully recovered
30 congestion windows partially recovered using Hoe heuristic
TCPDSACKUndo: 32
5015 congestion windows recovered after partial ack
TCPLostRetransmit: 980
3402 timeouts after SACK recovery
541 timeouts in loss state
16957 fast retransmits
114 forward retransmits
4426 retransmits in slow start
47181 other TCP timeouts
TCPLossProbes: 2693
TCPLossProbeRecovery: 345
3260 sack retransmits failed
8 packets collapsed in receive queue due to low socket buffer
6719 DSACKs sent for old packets
4807 DSACKs received
32 DSACKs for out of order packets received
59801 connections reset due to unexpected data
54336 connections reset due to early user close
1046 connections aborted due to timeout
TCPSACKDiscard: 1
TCPDSACKIgnoredOld: 760
TCPDSACKIgnoredNoUndo: 2672
TCPSpuriousRTOs: 4162
TCPSackShifted: 12297
TCPSackMerged: 27025
TCPSackShiftFallback: 26774
IPReversePathFilter: 1
TCPRcvCoalesce: 1266536
TCPOFOQueue: 28540
TCPChallengeACK: 362
TCPSYNChallenge: 314
IpExt:
InNoRoutes: 2
InBcastPkts: 12339
OutBcastPkts: 11
InOctets: 2084107878
OutOctets: 338026673
InBcastOctets: 4059430
OutBcastOctets: 505
Linux 3.5.3 kernel
Ip:
3086637 total packets received
13 with invalid addresses
58535 forwarded
0 incoming packets discarded
3004099 incoming packets delivered
3046249 requests sent out
4884 outgoing packets dropped
604 reassemblies required
298 packets reassembled ok
Icmp:
19 ICMP messages received
1 input ICMP message failed.
ICMP input histogram:
destination unreachable: 18
timeout in transit: 1
110 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 110
IcmpMsg:
InType3: 18
InType11: 1
OutType3: 110
Tcp:
20144 active connections openings
1890 passive connection openings
24 failed connection attempts
807 connection resets received
5 connections established
2844774 segments received
2864999 segments send out
666 segments retransmited
0 bad segments received.
1436 resets sent
Udp:
191424 packets received
110 packets to unknown port received.
0 packet receive errors
126296 packets sent
UdpLite:
TcpExt:
8702 TCP sockets finished time wait in fast timer
27501 delayed acks sent
11 delayed acks further delayed because of locked socket
Quick ack mode was activated 212 times
2765 packets directly queued to recvmsg prequeue.
3944 packets directly received from backlog
3454200 packets directly received from prequeue
1432347 packets header predicted
2410 packets header predicted and directly queued to user
1176313 acknowledgments not containing data received
209063 predicted acknowledgments
7 times recovered from packet loss due to SACK data
97 congestion windows recovered after partial ack
1 timeouts in loss state
9 fast retransmits
3 retransmits in slow start
222 other TCP timeouts
150 DSACKs sent for old packets
68 DSACKs sent for out of order packets
10 DSACKs received
254 connections reset due to unexpected data
440 connections reset due to early user close
64 connections aborted due to timeout
TCPDSACKIgnoredNoUndo: 3
TCPSackShifted: 91
TCPSackMerged: 40
TCPSackShiftFallback: 41
IPReversePathFilter: 3
TCPRcvCoalesce: 174784
IpExt:
InMcastPkts: 7196
OutMcastPkts: 7198
InBcastPkts: 38018
OutBcastPkts: 4884
InOctets: -2130469098
OutOctets: -1510535438
InMcastOctets: 2263192
OutMcastOctets: 2263272
InBcastOctets: 11839880
OutBcastOctets: 874238
FreeBSD
FreeBSD 11.1
tcp: 23127106 packets sent 16153624 data packets (53585728841 bytes) 590485 data packets (745038307 bytes) retransmitted 4010 data packets unnecessarily retransmitted 39 resends initiated by MTU discovery 5150314 ack-only packets (104775 delayed) 0 URG only packets 1273 window probe packets 43408 window update packets 1188002 control packets 30235460 packets received 18559843 acks (for 53523001389 bytes) 1975523 duplicate acks 823 acks for unsent data 8869021 packets (7029359419 bytes) received in-sequence 92268 completely duplicate packets (5747685 bytes) 22306 old duplicate packets 179 packets with some dup. data (53769 bytes duped) 49960 out-of-order packets (4677067 bytes) 0 packets (0 bytes) of data after window 0 window probes 756888 window update packets 356 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 207 discarded due to memory problems 247502 connection requests 702403 connection accepts 267 bad connection attempts 0 listen queue overflows 124876 ignored RSTs in the windows 949747 connections established (including accepts) 520966 times used RTT from hostcache 520966 times used RTT variance from hostcache 66223 times used slow-start threshold from hostcache 987040 connections closed (including 260928 drops) 640321 connections updated cached RTT on close 645061 connections updated cached RTT variance on close 75724 connections updated cached ssthresh on close 0 embryonic connections dropped 14329444 segments updated rtt (of 8582559 attempts) 141614 retransmit timeouts 5427 connections dropped by rexmit timeout 1666 persist timeouts 3 connections dropped by persist timeout 0 Connections (fin_wait_2) dropped because of timeout 0 keepalive timeouts 0 keepalive probes sent 0 connections dropped by keepalive 4994208 correct ACK header predictions 7246923 correct data packet header predictions 713941 syncache entries added 23743 retransmitted 11155 dupsyn 0 dropped 702403 completed 0 bucket overflow 0 cache overflow 5277 reset 6084 stale 0 aborted 0 badack 146 unreach 0 zone failures 713941 cookies sent 0 cookies received 170056 hostcache entries added 0 bucket overflow 47752 SACK recovery episodes 381468 segment rexmits in SACK recovery episodes 465315451 byte rexmits in SACK recovery episodes 1639642 SACK options (SACK blocks) received 127760 SACK options (SACK blocks) sent 136 SACK scoreboard overflow 0 packets with ECN CE bit set 1115411 packets with ECN ECT(0) bit set 0 packets with ECN ECT(1) bit set 115845 successful ECN handshakes 0 times ECN reduced the congestion window 0 packets with matching signature received 0 packets with bad signature received 0 times failed to make signature due to no SA 0 times unexpected signature received 0 times no signature provided by segment TCP connection count by state: 4 connections in CLOSED state 8 connections in LISTEN state 0 connections in SYN_SENT state 0 connections in SYN_RCVD state 2 connections in ESTABLISHED state 0 connections in CLOSE_WAIT state 0 connections in FIN_WAIT_1 state 0 connections in CLOSING state 0 connections in LAST_ACK state 1 connection in FIN_WAIT_2 state 10 connections in TIME_WAIT state udp: 18038 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 0 with no checksum 216 dropped due to no socket 0 broadcast/multicast datagrams undelivered 0 dropped due to full socket buffers 0 not for hashed pcb 17822 delivered 17988 datagrams output 0 times multicast source filter matched sctp: 0 input packets 0 datagrams 0 packets that had data 0 input SACK chunks 0 input DATA chunks 0 duplicate DATA chunks 0 input HB chunks 0 HB-ACK chunks 0 input ECNE chunks 0 input AUTH chunks 0 chunks missing AUTH 0 invalid HMAC ids received 0 invalid secret ids received 0 auth failed 0 fast path receives all one chunk 0 fast path multi-part data 0 output packets 0 output SACKs 0 output DATA chunks 0 retransmitted DATA chunks 0 fast retransmitted DATA chunks 0 FR's that happened more than once to same chunk 0 output HB chunks 0 output ECNE chunks 0 output AUTH chunks 0 ip_output error counter Packet drop statistics: 0 from middle box 0 from end host 0 with data 0 non-data, non-endhost 0 non-endhost, bandwidth rep only 0 not enough for chunk header 0 not enough data to confirm 0 where process_chunk_drop said break 0 failed to find TSN 0 attempt reverse TSN lookup 0 e-host confirms zero-rwnd 0 midbox confirms no space 0 data did not match TSN 0 TSN's marked for Fast Retran Timeouts: 0 iterator timers fired 0 T3 data time outs 0 window probe (T3) timers fired 0 INIT timers fired 0 sack timers fired 0 shutdown timers fired 0 heartbeat timers fired 0 a cookie timeout fired 0 an endpoint changed its cookiesecret 0 PMTU timers fired 0 shutdown ack timers fired 0 shutdown guard timers fired 0 stream reset timers fired 0 early FR timers fired 0 an asconf timer fired 0 auto close timer fired 0 asoc free timers expired 0 inp free timers expired 0 packet shorter than header 0 checksum error 0 no endpoint for port 0 bad v-tag 0 bad SID 0 no memory 0 number of multiple FR in a RTT window 0 RFC813 allowed sending 0 RFC813 does not allow sending 0 times max burst prohibited sending 0 look ahead tells us no memory in interface 0 numbers of window probes sent 0 times an output error to clamp down on next user send 0 times sctp_senderrors were caused from a user 0 number of in data drops due to chunk limit reached 0 number of in data drops due to rwnd limit reached 0 times a ECN reduced the cwnd 0 used express lookup via vtag 0 collision in express lookup 0 times the sender ran dry of user data on primary 0 same for above 0 sacks the slow way 0 window update only sacks sent 0 sends with sinfo_flags !=0 0 unordered sends 0 sends with EOF flag set 0 sends with ABORT flag set 14872 times protocol drain called 0 times we did a protocol drain 0 times recv was called with peek 0 cached chunks used 0 cached stream oq's used 0 unread messages abandonded by close 0 send burst avoidance, already max burst inflight to net 0 send cwnd full avoidance, already max burst inflight to net 0 number of map array over-runs via fwd-tsn's ip: 30256635 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 30256633 packets for this host 0 packets for unknown/unsupported protocol 0 packets forwarded (0 packets fast forwarded) 2 packets not forwardable 0 packets received for unknown multicast group 0 redirects sent 23192086 packets sent from this host 50 packets sent with fabricated ip header 0 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 Output histogram: echo reply: 1087 time stamp reply: 1 0 messages with bad code fields 0 messages less than the minimum length 8 messages with bad checksum 0 messages with bad length 0 multicast echo requests ignored 0 multicast timestamp requests ignored Input histogram: echo reply: 16 destination unreachable: 1867 echo: 1087 time exceeded: 156 time stamp: 1 1088 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 wrong TTL 0 messages received with bad checksum 0 V1/V2 membership queries received 0 V3 membership queries received 0 membership queries received with invalid field(s) 0 general queries received 0 group queries received 0 group-source queries received 0 group-source queries dropped 0 membership reports received 0 membership reports received with invalid field(s) 0 membership reports received for groups to which we belong 0 V3 reports received without Router Alert 0 membership reports sent ipsec: 0 inbound packets violated process security policy 0 inbound packets failed due to insufficient memory 0 invalid inbound packets 0 outbound packets violated process security policy 0 outbound packets with no SA available 0 outbound packets failed due to insufficient memory 0 outbound packets with no route available 0 invalid outbound packets 0 outbound packets with bundled SAs 0 mbufs coalesced during clone 0 clusters coalesced during clone 0 clusters copied during clone 0 mbufs inserted during makespace ah: 0 packets shorter than header shows 0 packets dropped; protocol family not supported 0 packets dropped; no TDB 0 packets dropped; bad KCR 0 packets dropped; queue full 0 packets dropped; no transform 0 replay counter wraps 0 packets dropped; bad authentication detected 0 packets dropped; bad authentication length 0 possible replay packets detected 0 packets in 0 packets out 0 packets dropped; invalid TDB 0 bytes in 0 bytes out 0 packets dropped; larger than IP_MAXPACKET 0 packets blocked due to policy 0 crypto processing failures 0 tunnel sanity check failures esp: 0 packets shorter than header shows 0 packets dropped; protocol family not supported 0 packets dropped; no TDB 0 packets dropped; bad KCR 0 packets dropped; queue full 0 packets dropped; no transform 0 packets dropped; bad ilen 0 replay counter wraps 0 packets dropped; bad encryption detected 0 packets dropped; bad authentication detected 0 possible replay packets detected 0 packets in 0 packets out 0 packets dropped; invalid TDB 0 bytes in 0 bytes out 0 packets dropped; larger than IP_MAXPACKET 0 packets blocked due to policy 0 crypto processing failures 0 tunnel sanity check failures ipcomp: 0 packets shorter than header shows 0 packets dropped; protocol family not supported 0 packets dropped; no TDB 0 packets dropped; bad KCR 0 packets dropped; queue full 0 packets dropped; no transform 0 replay counter wraps 0 packets in 0 packets out 0 packets dropped; invalid TDB 0 bytes in 0 bytes out 0 packets dropped; larger than IP_MAXPACKET 0 packets blocked due to policy 0 crypto processing failures 0 packets sent uncompressed; size < compr. algo. threshold 0 packets sent uncompressed; compression was useless arp: 2 ARP requests sent 36715 ARP replies sent 36715 ARP requests received 1 ARP reply received 36716 ARP packets received 0 total packets dropped due to no ARP entry 0 ARP entrys timed out 0 Duplicate IPs seen ip6: 0 total packets received 0 with size smaller than minimum 0 with data size < data 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 fragments that exceeded limit 0 packets reassembled ok 0 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 3 packets sent from this host 0 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 1915 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 packets that violated scope rules 0 multicast packets which we don't join Mbuf statistics: 0 one mbuf 0 one ext mbuf 0 two or more ext mbuf 0 packets whose headers are not contiguous 0 tunneling packets that can't find gif 0 packets discarded because of too many headers 0 failures of source address selection icmp6: 0 calls to icmp6_error 0 errors not generated in response to an icmp6 message 0 errors not generated because of rate limitation Output histogram: neighbor solicitation: 1 MLDv2 listener report: 2 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 0 message responses generated 0 messages with too many ND options 0 messages with bad ND options 0 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes ipsec6: 0 inbound packets violated process security policy 0 inbound packets failed due to insufficient memory 0 invalid inbound packets 0 outbound packets violated process security policy 0 outbound packets with no SA available 0 outbound packets failed due to insufficient memory 0 outbound packets with no route available 0 invalid outbound packets 0 outbound packets with bundled SAs 0 mbufs coalesced during clone 0 clusters coalesced during clone 0 clusters copied during clone 0 mbufs inserted during makespace rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output pfkey: 0 requests sent from userland 0 bytes sent from userland 0 messages with invalid length field 0 messages with invalid version field 0 messages with invalid message type field 0 messages too short 0 messages with memory allocation failure 0 messages with duplicate extension 0 messages with invalid extension type 0 messages with invalid sa type 0 messages with invalid address extension 0 requests sent to userland 0 bytes sent to userland 0 messages toward single socket 0 messages toward all sockets 0 messages toward registered sockets 0 messages with memory allocation failure
OpenBSD
OpenBSD 5.4
ip: 9120279 total packets received 0 bad header checksums 0 with size smaller than minimum 0 with data size < data length 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 (duplicates or out of space) 0 malformed fragments dropped 0 fragments dropped after timeout 0 packets reassembled ok 9119862 packets for this host 416 packets for unknown/unsupported protocol 0 packets forwarded 0 packets not forwardable 0 redirects sent 9442080 packets sent from this host 2 packets sent with fabricated ip header 0 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 fragment floods 0 packets with ip length > max ip packet size 0 tunneling packets that can't find gif 0 datagrams with bad address in header 2184118 input datagrams checksum-processed by hardware 2505639 output datagrams checksum-processed by hardware 0 multicast packets which we don't join icmp: 0 calls to icmp_error 0 errors not generated because old message was icmp 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length 0 echo requests to broadcast/multicast rejected Input packet histogram: destination unreachable: 416 0 message responses generated 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 ipencap: 0 total input packets 0 total output packets 0 packets shorter than header shows 0 packets dropped due to policy 0 packets with possibly spoofed local addresses 0 packets were dropped due to full output queue 0 input bytes 0 output bytes 0 protocol family mismatches 0 attempts to use tunnel with unspecified endpoint(s) tcp: 9436474 packets sent 5790154 data packets (2127707309 bytes) 1110 data packets (471748 bytes) retransmitted 0 fast retransmitted packets 3580690 ack-only packets (1755333 delayed) 0 URG only packets 0 window probe packets 57653 window update packets 7197 control packets 2500357 packets hardware-checksummed 9116842 packets received 5452319 acks (for 2127524524 bytes) 3012 duplicate acks 0 acks for unsent data 0 acks for old data 5278417 packets (1386987569 bytes) received in-sequence 318 completely duplicate packets (92528 bytes) 0 old duplicate packets 0 packets with some duplicate data (0 bytes duplicated) 1174 out-of-order packets (90469 bytes) 0 packets (0 bytes) of data after window 0 window probes 23156 window update packets 935 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 0 discarded for missing IPsec protection 0 discarded due to memory shortage 2180541 packets hardware-checksummed 0 bad/missing md5 checksums 0 good md5 checksums 3332 connection requests 223 connection accepts 3385 connections established (including accepts) 3662 connections closed (including 98 drops) 0 connections drained 170 embryonic connections dropped 5455357 segments updated rtt (of 5334814 attempts) 502 retransmit timeouts 39 connections dropped by rexmit timeout 0 persist timeouts 237 keepalive timeouts 69 keepalive probes sent 6 connections dropped by keepalive 38401 correct ACK header predictions 314984 correct data packet header predictions 2636 PCB cache misses 0 ECN connections accepted 0 ECE packets received 0 CWR packets received 0 CE packets received 0 ECT packets sent 0 ECE packets sent 0 CWR packets sent cwr by fastrecovery: 45 cwr by timeout: 502 cwr by ecn: 0 0 bad connection attempts 223 SYN cache entries added 0 hash collisions 223 completed 0 aborted (no space to build PCB) 0 timed out 0 dropped due to overflow 0 dropped due to bucket overflow 0 dropped due to RST 0 dropped due to ICMP unreachable 0 SYN,ACKs retransmitted 0 duplicate SYNs received for entries already in the cache 0 SYNs dropped (no route or no space) 45 SACK recovery episodes 186 segment rexmits in SACK recovery episodes 135050 byte rexmits in SACK recovery episodes 1395 SACK options received 335 SACK options sent udp: 3196 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 0 with no checksum 3170 input packets hardware-checksummed 3168 output packets hardware-checksummed 0 dropped due to no socket 16 broadcast/multicast datagrams dropped due to no socket 0 dropped due to missing IPsec protection 0 dropped due to full socket buffers 3180 delivered 3194 datagrams output 26 missed PCB cache esp: 0 input ESP packets 0 output ESP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets with bad encryption received 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad payload size or padding received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input UDP encapsulated ESP packets 0 output UDP encapsulated ESP packets 0 UDP packets for non-encapsulating TDB received 0 input bytes 0 output bytes ah: 0 input AH packets 0 output AH packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad authenticator length received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input bytes 0 output bytes etherip: 0 packets shorter than header shows 0 packets were dropped due to full output queue 0 packets were dropped because of no interface/bridge information 0 packets dropped due to policy 0 packets dropped for other reasons 0 input ethernet-in-IP packets 0 output ethernet-in-IP packets 0 input bytes 0 output bytes ipcomp: 0 input IPCOMP packets 0 output IPCOMP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed (de)compression processing 0 packets less than minimum compression length 0 input bytes 0 output bytes carp: 0 packets received (IPv4) 0 packets received (IPv6) 0 packets discarded for bad interface 0 packets discarded for wrong TTL 0 packets shorter than header 0 discarded for bad checksums 0 discarded packets with a bad version 0 discarded because packet too short 0 discarded for bad authentication 0 discarded for unknown vhid 0 discarded because of a bad address list 0 packets sent (IPv4) 0 packets sent (IPv6) 0 send failed due to mbuf memory error 0 transitions to master 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 divert: 0 total packets received 0 dropped due to no socket 0 dropped due to full socket buffers 0 packets output 0 errors pflow: 0 flows sent 0 packets sent 0 send failed due to mbuf memory error 0 send error ip6: 411 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (duplicates or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 packets reassembled ok 176 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 175 packets sent from this host 0 packets sent with fabricated ip header 0 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 packets that violated scope rules 0 multicast packets which we don't join Input packet histogram: TCP: 166 UDP: 10 ICMP6: 235 Mbuf statistics: 166 one mbufs 245 one ext mbufs 0 two or more ext mbufs 0 tunneling packets that can't find gif 0 packets discarded due to too many headers 0 failures of source address selection source addresses on an outgoing I/F 83 node-locals source addresses of same scope 83 node-locals 0 forward cache hit 0 forward cache miss divert6: 0 total packets received 0 dropped due to no socket 0 dropped due to full socket buffers 0 packets output 0 errors icmp6: 0 calls to icmp6_error 0 errors not generated because old message was icmp6 or so 0 errors not generated because of rate limitation Output packet histogram: multicast listener report: 8 neighbor solicitation: 1 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input packet histogram: router advertisement: 235 Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 0 message responses generated 0 messages with too many ND options 0 messages with bad ND options 0 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes pim6: 0 messages received 0 messages received with too few bytes 0 messages received with bad checksum 0 messages received with bad version 0 registers received 0 bad registers received 0 registers sent rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output
SunOS
SunOS 5.10
RAWIP rawipInDatagrams = 4 rawipInErrors = 0
rawipInCksumErrs = 0 rawipOutDatagrams = 11
rawipOutErrors = 0
UDP udpInDatagrams =883900 udpInErrors = 0
udpOutDatagrams =595637 udpOutErrors = 0
TCP tcpRtoAlgorithm = 4 tcpRtoMin = 400
tcpRtoMax = 60000 tcpMaxConn = -1
tcpActiveOpens = 13323 tcpPassiveOpens = 25502
tcpAttemptFails = 104 tcpEstabResets = 444
tcpCurrEstab = 29 tcpOutSegs =10974247
tcpOutDataSegs =17549229 tcpOutDataBytes =766486016
tcpRetransSegs = 1952 tcpRetransBytes =1153273
tcpOutAck =563037 tcpOutAckDelayed =243780
tcpOutUrg = 0 tcpOutWinUpdate = 422
tcpOutWinProbe = 62 tcpOutControl = 78222
tcpOutRsts = 600 tcpOutFastRetrans = 88
tcpInSegs =8618291
tcpInAckSegs =8162920 tcpInAckBytes =240168277
tcpInDupAck = 37303 tcpInAckUnsent = 0
tcpInInorderSegs =4221681 tcpInInorderBytes =1569280709
tcpInUnorderSegs = 1555 tcpInUnorderBytes =2752928
tcpInDupSegs = 3747 tcpInDupBytes =271298
tcpInPartDupSegs = 0 tcpInPartDupBytes = 0
tcpInPastWinSegs = 1 tcpInPastWinBytes =265402301
tcpInWinProbe = 0 tcpInWinUpdate = 38
tcpInClosed = 103 tcpRttNoUpdate = 20
tcpRttUpdate =8128899 tcpTimRetrans = 735
tcpTimRetransDrop = 74 tcpTimKeepalive = 1217
tcpTimKeepaliveProbe= 7 tcpTimKeepaliveDrop = 0
tcpListenDrop = 0 tcpListenDropQ0 = 0
tcpHalfOpenDrop = 0 tcpOutSackRetrans = 711
IPv4 ipForwarding = 2 ipDefaultTTL = 255
ipInReceives =10278918 ipInHdrErrors = 0
ipInAddrErrors = 0 ipInCksumErrs = 0
ipForwDatagrams = 0 ipForwProhibits = 1
ipInUnknownProtos = 18858 ipInDiscards = 3
ipInDelivers =10056663 ipOutRequests =16653663
ipOutDiscards = 0 ipOutNoRoutes = 0
ipReasmTimeout = 60 ipReasmReqds = 79
ipReasmOKs = 79 ipReasmFails = 0
ipReasmDuplicates = 0 ipReasmPartDups = 0
ipFragOKs = 0 ipFragFails = 0
ipFragCreates = 0 ipRoutingDiscards = 0
tcpInErrs = 14 udpNoPorts =461901
udpInCksumErrs = 3 udpInOverflows = 0
rawipInOverflows = 0 ipsecInSucceeded =257293
ipsecInFailed = 0 ipInIPv6 = 0
ipOutIPv6 = 0 ipOutSwitchIPv6 = 0
IPv6 ipv6Forwarding = 2 ipv6DefaultHopLimit = 0
ipv6InReceives = 5767 ipv6InHdrErrors = 0
ipv6InTooBigErrors = 0 ipv6InNoRoutes = 0
ipv6InAddrErrors = 0 ipv6InUnknownProtos = 0
ipv6InTruncatedPkts = 0 ipv6InDiscards = 0
ipv6InDelivers = 27367 ipv6OutForwDatagrams= 0
ipv6OutRequests = 33751 ipv6OutDiscards = 2
ipv6OutNoRoutes = 17271 ipv6OutFragOKs = 0
ipv6OutFragFails = 0 ipv6OutFragCreates = 0
ipv6ReasmReqds = 0 ipv6ReasmOKs = 0
ipv6ReasmFails = 0 ipv6InMcastPkts = 5767
ipv6OutMcastPkts = 6603 ipv6ReasmDuplicates = 0
ipv6ReasmPartDups = 0 ipv6ForwProhibits = 0
udpInCksumErrs = 0 udpInOverflows = 0
rawipInOverflows = 0 ipv6InIPv4 = 0
ipv6OutIPv4 = 0 ipv6OutSwitchIPv4 = 0
ICMPv4 icmpInMsgs = 5062 icmpInErrors = 0
icmpInCksumErrs = 0 icmpInUnknowns = 0
icmpInDestUnreachs = 4971 icmpInTimeExcds = 35
icmpInParmProbs = 0 icmpInSrcQuenchs = 0
icmpInRedirects = 0 icmpInBadRedirects = 0
icmpInEchos = 53 icmpInEchoReps = 3
icmpInTimestamps = 0 icmpInTimestampReps = 0
icmpInAddrMasks = 0 icmpInAddrMaskReps = 0
icmpInFragNeeded = 0 icmpOutMsgs = 2458
icmpOutDrops = 18858 icmpOutErrors = 0
icmpOutDestUnreachs = 2405 icmpOutTimeExcds = 0
icmpOutParmProbs = 0 icmpOutSrcQuenchs = 0
icmpOutRedirects = 0 icmpOutEchos = 0
icmpOutEchoReps = 53 icmpOutTimestamps = 0
icmpOutTimestampReps= 0 icmpOutAddrMasks = 0
icmpOutAddrMaskReps = 0 icmpOutFragNeeded = 0
icmpInOverflows = 0
ICMPv6 icmp6InMsgs = 17494 icmp6InErrors = 0
icmp6InDestUnreachs = 9845 icmp6InAdminProhibs = 0
icmp6InTimeExcds = 0 icmp6InParmProblems = 0
icmp6InPktTooBigs = 0 icmp6InEchos = 0
icmp6InEchoReplies = 0 icmp6InRouterSols = 0
icmp6InRouterAds = 0 icmp6InNeighborSols = 2
icmp6InNeighborAds = 7647 icmp6InRedirects = 0
icmp6InBadRedirects = 0 icmp6InGroupQueries = 0
icmp6InGroupResps = 0 icmp6InGroupReds = 0
icmp6InOverflows = 0
icmp6OutMsgs = 13617 icmp6OutErrors = 0
icmp6OutDestUnreachs= 9845 icmp6OutAdminProhibs= 0
icmp6OutTimeExcds = 0 icmp6OutParmProblems= 0
icmp6OutPktTooBigs = 0 icmp6OutEchos = 0
icmp6OutEchoReplies = 0 icmp6OutRouterSols = 3
icmp6OutRouterAds = 0 icmp6OutNeighborSols= 4
icmp6OutNeighborAds = 3760 icmp6OutRedirects = 0
icmp6OutGroupQueries= 0 icmp6OutGroupResps = 5
icmp6OutGroupReds = 0
IGMP:
18858 messages received
0 messages received with too few bytes
0 messages received with bad checksum
9451 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
9407 membership reports sent
SCTP sctpRtoAlgorithm = vanj sctpRtoMin = 1000
sctpRtoMax = 60000 sctpRtoInitial = 3000
sctpMaxAssocs = -1 sctpValCookieLife = 60000
sctpMaxInitRetr = 8 sctpCurrEstab = 0
sctpActiveEstab = 0 sctpPassiveEstab = 0
sctpAborted = 0 sctpShutdowns = 0
sctpOutOfBlue = 0 sctpChecksumError = 0
sctpOutCtrlChunks = 0 sctpOutOrderChunks = 0
sctpOutUnorderChunks= 0 sctpRetransChunks = 0
sctpOutAck = 0 sctpOutAckDelayed = 0
sctpOutWinUpdate = 0 sctpOutFastRetrans = 0
sctpOutWinProbe = 0 sctpInCtrlChunks = 0
sctpInOrderChunks = 0 sctpInUnorderChunks = 0
sctpInAck = 0 sctpInDupAck = 0
sctpInAckUnsent = 0 sctpFragUsrMsgs = 0
sctpReasmUsrMsgs = 0 sctpOutSCTPPkts = 0
sctpInSCTPPkts = 0 sctpInInvalidCookie = 0
sctpTimRetrans = 0 sctpTimRetransDrop = 0
sctpTimHearBeatProbe= 0 sctpTimHearBeatDrop = 0
sctpListenDrop = 0 sctpInClosed = 0
Cisco
Here is the output of show ip traffic
IP statistics:
Rcvd: 326 total, 299 local destination
0 format errors, 0 checksum errors, 0 bad hop count
0 unknown protocol, 0 not a gateway
0 security failures, 0 bad options, 0 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 0 alert, 0 cipso
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
0 fragmented, 0 couldn't fragment
Bcast: 24 received, 8 sent
Mcast: 0 received, 0 sent
Sent: 249 generated, 0 forwarded
Drop: 14 encapsulation failed, 0 unresolved, 0 no adjacency
8 no route, 0 unicast RPF, 0 forced drop
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 5 unreachable
2 echo, 0 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
Sent: 0 redirects, 0 unreachable, 0 echo, 2 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp
0 info reply, 0 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
UDP statistics:
Rcvd: 41 total, 0 checksum errors, 18 no port
Sent: 36 total, 0 forwarded broadcasts
TCP statistics:
Rcvd: 254 total, 0 checksum errors, 0 no port
Sent: 212 total
Probe statistics:
Rcvd: 0 address requests, 0 address replies
0 proxy name requests, 0 where-is requests, 0 other
Sent: 0 address requests, 0 address replies (0 proxy)
0 proxy name replies, 0 where-is replies
EGP statistics:
Rcvd: 0 total, 0 format errors, 0 checksum errors, 0 no listener
Sent: 0 total
IGRP statistics:
Rcvd: 0 total, 0 checksum errors
Sent: 0 total
OSPF statistics:
Rcvd: 0 total, 0 checksum errors
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
Sent: 0 total
IP-IGRP2 statistics:
Rcvd: 0 total
Sent: 0 total
PIMv2 statistics: Sent/Received
Total: 0/0, 0 checksum errors, 0 format errors
Registers: 0/0, Register Stops: 0/0, Hellos: 0/0
Join/Prunes: 0/0, Asserts: 0/0, grafts: 0/0
Bootstraps: 0/0, Candidate_RP_Advertisements: 0/0
IGMP statistics: Sent/Received
Total: 0/0, Format errors: 0/0, Checksum errors: 0/0
Host Queries: 0/0, Host Reports: 0/0, Host Leaves: 0/0
DVMRP: 0/0, PIM: 0/0
ARP statistics:
Rcvd: 10 requests, 1 replies, 0 reverse, 0 other
Sent: 3 requests, 11 replies (0 proxy), 0 reverse
Here is the output of show tcp statistics
Rcvd: 332 Total, 0 no port
0 checksum error, 0 bad offset, 0 too short
214 packets (315 bytes) in sequence
0 dup packets (0 bytes)
0 partially dup packets (0 bytes)
0 out-of-order packets (0 bytes)
0 packets (0 bytes) with data after window
0 packets after close
0 window probe packets, 0 window update packets
0 dup ack packets, 0 ack packets with unsend data
222 ack packets (25253 bytes)
Sent: 274 Total, 0 urgent packets
1 control packets (including 0 retransmitted)
257 data packets (25254 bytes)
0 data packets (0 bytes) retransmitted
16 ack only packets (16 delayed)
0 window probe packets, 0 window update packets
0 Connections initiated, 1 connections accepted, 1 connections established
0 Connections closed (including 0 dropped, 0 embryonic dropped)
0 Total rxmt timeout, 0 connections dropped in rxmt timeout
0 Keepalive timeout, 0 keepalive probe, 0 Connections dropped in keepalive
Historical Examples
Linux 2.6.33 kernel
Ip:
14160127 total packets received
1 with invalid addresses
1031595 forwarded
1 with unknown protocol
0 incoming packets discarded
12823997 incoming packets delivered
12175893 requests sent out
40141 outgoing packets dropped
1 fragments dropped after timeout
16953 reassemblies required
8476 packets reassembled ok
1 packet reassembles failed
Icmp:
883 ICMP messages received
44 input ICMP message failed.
ICMP input histogram:
destination unreachable: 827
timeout in transit: 28
source quenches: 1
echo requests: 27
4052 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 4021
echo request: 4
echo replies: 27
IcmpMsg:
InType3: 827
InType4: 1
InType8: 27
InType11: 28
OutType0: 27
OutType3: 4021
OutType8: 4
Tcp:
399848 active connections openings
248057 passive connection openings
1201 failed connection attempts
1462 connection resets received
8 connections established
11460573 segments received
9916512 segments send out
13667 segments retransmited
0 bad segments received.
25448 resets sent
Udp:
1417813 packets received
3663 packets to unknown port received.
1 packet receive errors
1210060 packets sent
UdpLite:
TcpExt:
333665 TCP sockets finished time wait in fast timer
3 packets rejects in established connections because of timestamp
211661 delayed acks sent
96 delayed acks further delayed because of locked socket
Quick ack mode was activated 4229 times
74274 packets directly queued to recvmsg prequeue.
37833 packets directly received from backlog
102627617 packets directly received from prequeue
6771097 packets header predicted
73381 packets header predicted and directly queued to user
1281123 acknowledgments not containing data received
1570328 predicted acknowledgments
3 times recovered from packet loss due to SACK data
Detected reordering 1 times using time stamp
2 congestion windows fully recovered
9 congestion windows partially recovered using Hoe heuristic
588 congestion windows recovered after partial ack
0 TCP data loss events
60 timeouts after SACK recovery
1 timeouts in loss state
2 fast retransmits
2 forward retransmits
33 retransmits in slow start
3755 other TCP timeouts
2 times receiver scheduled too late for direct processing
3967 DSACKs sent for old packets
101 DSACKs sent for out of order packets
115 DSACKs received
3950 connections reset due to unexpected data
659 connections reset due to early user close
2389 connections aborted due to timeout
TCPDSACKIgnoredOld: 38
TCPDSACKIgnoredNoUndo: 20
TCPSackShifted: 2
TCPSackMerged: 5
TCPSackShiftFallback: 431
IpExt:
InMcastPkts: 266515
OutMcastPkts: 266524
InBcastPkts: 353235
OutBcastPkts: 122858
InOctets: 1402185666
OutOctets: 2061596738
InMcastOctets: 57085877
OutMcastOctets: 57086245
InBcastOctets: 98229428
OutBcastOctets: 22241335
Linux 2.6.24 kernel
Ip:
427117633 total packets received
25 with invalid headers
228 with invalid addresses
0 forwarded
0 incoming packets discarded
427117380 incoming packets delivered
268514658 requests sent out
Icmp:
837 ICMP messages received
3 input ICMP message failed.
ICMP input histogram:
destination unreachable: 570
timeout in transit: 7
echo requests: 260
508 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 248
echo replies: 260
IcmpMsg:
InType3: 570
InType8: 260
InType11: 7
OutType0: 260
OutType3: 248
Tcp:
1109 active connections openings
154457 passive connection openings
876 failed connection attempts
244 connection resets received
11 connections established
424768042 segments received
267933426 segments send out
1105 segments retransmited
0 bad segments received.
3037 resets sent
Udp:
1314435 packets received
232 packets to unknown port received.
1 packet receive errors
570387 packets sent
UdpLite:
TcpExt:
276 resets received for embryonic SYN_RECV sockets
1308 packets pruned from receive queue because of socket buffer overrun
516 ICMP packets dropped because they were out-of-window
4527 TCP sockets finished time wait in fast timer
2 packets rejects in established connections because of timestamp
355080 delayed acks sent
84 delayed acks further delayed because of locked socket
Quick ack mode was activated 214 times
137800 packets directly queued to recvmsg prequeue.
489 bytes directly received in process context from prequeue
343265897 packet headers predicted
2339785 acknowledgments not containing data payload received
127767879 predicted acknowledgments
81 times recovered from packet loss by selective acknowledgements
1 congestion windows recovered without slow start by DSACK
89 congestion windows recovered without slow start after partial ack
54 TCP data loss events
35 timeouts after SACK recovery
228 fast retransmits
7 forward retransmits
2 retransmits in slow start
636 other TCP timeouts
1897562 packets collapsed in receive queue due to low socket buffer
215 DSACKs sent for old packets
1 DSACKs sent for out of order packets
144 DSACKs received
101 connections reset due to unexpected data
44 connections reset due to early user close
9 connections aborted due to timeout
TCPDSACKIgnoredOld: 46
TCPDSACKIgnoredNoUndo: 25
TCPSpuriousRTOs: 2
IpExt:
InMcastPkts: 646981
OutMcastPkts: 40789
InBcastPkts: 1525325
Linux 2.0.34
Ip:
6889 total packets received
0 with invalid headers
0 with invalid addresses
0 forwarded
0 with unknown protocol
0 incoming packets discarded
6000 incoming packets delivered
11851 requests sent out
0 outgoing packets dropped
18 dropped because of missing route
0 fragments dropped after timeout
0 reassemblies required
0 packets reassembled ok
0 packet reassembles failed
0 fragments received ok
0 fragments failed
0 fragments created
Icmp:
2 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
destination unreachable: 2
2 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 2
Tcp:
9 active opens
0 passive opens
0 failed connection attempts
0 connection resets received
0 connections established
887 segments received
1122 segments send out
32 segments retransmited
Udp:
5998 packets received
2 packets to unknown port received.
0 packet receive errors
5642 packets send
OpenBSD 5.1
ip: 38876 total packets received 1 bad header checksum 0 with size smaller than minimum 0 with data size < data length 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 (duplicates or out of space) 0 malformed fragments dropped 0 fragments dropped after timeout 0 packets reassembled ok 38875 packets for this host 0 packets for unknown/unsupported protocol 0 packets forwarded 0 packets not forwardable 0 redirects sent 36235 packets sent from this host 0 packets sent with fabricated ip header 0 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 fragment floods 0 packets with ip length > max ip packet size 0 tunneling packets that can't find gif 0 datagrams with bad address in header 16235 input datagrams checksum-processed by hardware 2 output datagrams checksum-processed by hardware 0 multicast packets which we don't join icmp: 0 calls to icmp_error 0 errors not generated because old message was icmp 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length 0 echo requests to broadcast/multicast rejected 0 message responses generated 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 ipencap: 0 total input packets 0 total output packets 0 packets shorter than header shows 0 packets dropped due to policy 0 packets with possibly spoofed local addresses 0 packets were dropped due to full output queue 0 input bytes 0 output bytes 0 protocol family mismatches 0 attempts to use tunnel with unspecified endpoint(s) tcp: 35623 packets sent 18587 data packets (9007617 bytes) 36 data packets (1332 bytes) retransmitted 0 fast retransmitted packets 15679 ack-only packets (8160 delayed) 0 URG only packets 0 window probe packets 833 window update packets 488 control packets 0 packets hardware-checksummed 38092 packets received 17268 acks (for 9007538 bytes) 142 duplicate acks 0 acks for unsent data 0 acks for old data 22505 packets (9697921 bytes) received in-sequence 2 completely duplicate packets (0 bytes) 0 old duplicate packets 0 packets with some duplicate data (0 bytes duplicated) 73 out-of-order packets (0 bytes) 0 packets (0 bytes) of data after window 0 window probes 80 window update packets 0 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 0 discarded for missing IPsec protection 0 discarded due to memory shortage 15187 packets hardware-checksummed 0 bad/missing md5 checksums 0 good md5 checksums 278 connection requests 132 connection accepts 222 connections established (including accepts) 486 connections closed (including 3 drops) 0 connections drained 188 embryonic connections dropped 17358 segments updated rtt (of 16446 attempts) 36 retransmit timeouts 3 connections dropped by rexmit timeout 0 persist timeouts 2 keepalive timeouts 2 keepalive probes sent 0 connections dropped by keepalive 5666 correct ACK header predictions 14535 correct data packet header predictions 458 PCB cache misses 0 ECN connections accepted 0 ECE packets received 0 CWR packets received 0 CE packets received 0 ECT packets sent 0 ECE packets sent 0 CWR packets sent cwr by fastrecovery: 0 cwr by timeout: 36 cwr by ecn: 0 0 bad connection attempts 132 SYN cache entries added 0 hash collisions 132 completed 0 aborted (no space to build PCB) 0 timed out 0 dropped due to overflow 0 dropped due to bucket overflow 0 dropped due to RST 0 dropped due to ICMP unreachable 0 SYN,ACKs retransmitted 0 duplicate SYNs received for entries already in the cache 0 SYNs dropped (no route or no space) 0 SACK recovery episodes 0 segment rexmits in SACK recovery episodes 0 byte rexmits in SACK recovery episodes 0 SACK options received 0 SACK options sent udp: 783 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 0 with no checksum 687 input packets hardware-checksummed 2 output packets hardware-checksummed 0 dropped due to no socket 362 broadcast/multicast datagrams dropped due to no socket 0 dropped due to missing IPsec protection 0 dropped due to full socket buffers 421 delivered 422 datagrams output 34 missed PCB cache esp: 0 input ESP packets 0 output ESP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets with bad encryption received 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad payload size or padding received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input UDP encapsulated ESP packets 0 output UDP encapsulated ESP packets 0 UDP packets for non-encapsulating TDB received 0 input bytes 0 output bytes ah: 0 input AH packets 0 output AH packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad authenticator length received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input bytes 0 output bytes etherip: 0 packets shorter than header shows 0 packets were dropped due to full output queue 0 packets were dropped because of no interface/bridge information 0 packets dropped due to policy 0 packets dropped for other reasons 0 input ethernet-in-IP packets 0 output ethernet-in-IP packets 0 input bytes 0 output bytes ipcomp: 0 input IPCOMP packets 0 output IPCOMP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed (de)compression processing 0 packets less than minimum compression length 0 input bytes 0 output bytes carp: 0 packets received (IPv4) 0 packets received (IPv6) 0 packets discarded for bad interface 0 packets discarded for wrong TTL 0 packets shorter than header 0 discarded for bad checksums 0 discarded packets with a bad version 0 discarded because packet too short 0 discarded for bad authentication 0 discarded for unknown vhid 0 discarded because of a bad address list 0 packets sent (IPv4) 0 packets sent (IPv6) 0 send failed due to mbuf memory error 0 transitions to master 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 divert: 0 total packets received 0 dropped due to no socket 0 dropped due to full socket buffers 0 packets output 0 errors pflow: 0 flows sent 0 packets sent 0 send failed due to mbuf memory error 0 send error ip6: 0 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (duplicates or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 packets reassembled ok 0 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 10 packets sent from this host 0 packets sent with fabricated ip header 0 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 packets that violated scope rules 0 multicast packets which we don't join Mbuf statistics: 0 one mbufs 0 one ext mbufs 0 two or more ext mbufs 0 tunneling packets that can't find gif 0 packets discarded due to too many headers 0 failures of source address selection 0 forward cache hit 0 forward cache miss divert6: 0 total packets received 0 dropped due to no socket 0 dropped due to full socket buffers 0 packets output 0 errors icmp6: 0 calls to icmp6_error 0 errors not generated because old message was icmp6 or so 0 errors not generated because of rate limitation Output packet histogram: multicast listener report: 8 neighbor solicitation: 2 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 0 message responses generated 0 messages with too many ND options 0 messages with bad ND options 0 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes pim6: 0 messages received 0 messages received with too few bytes 0 messages received with bad checksum 0 messages received with bad version 0 registers received 0 bad registers received 0 registers sent rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output
OpenBSD 4.5
ip: 113879070 total packets received 0 bad header checksums 0 with size smaller than minimum 0 with data size < data length 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 (duplicates or out of space) 0 malformed fragments dropped 0 fragments dropped after timeout 0 packets reassembled ok 113856119 packets for this host 21903 packets for unknown/unsupported protocol 0 packets forwarded 1048 packets not forwardable 0 redirects sent 167534674 packets sent from this host 0 packets sent with fabricated ip header 0 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 fragment floods 0 packets with ip length > max ip packet size 0 tunneling packets that can't find gif 0 datagrams with bad address in header 0 input datagrams checksum-processed by hardware 0 output datagrams checksum-processed by hardware 0 multicast packets which we don't join icmp: 23352 calls to icmp_error 0 errors not generated because old message was icmp Output packet histogram: echo reply: 2 destination unreachable: 1450 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input packet histogram: destination unreachable: 1 echo: 2 2 message responses generated igmp: 21902 messages received 0 messages received with too few bytes 0 messages received with bad checksum 21902 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 ipencap: 0 total input packets 0 total output packets 0 packets shorter than header shows 0 packets dropped due to policy 0 packets with possibly spoofed local addresses 0 packets were dropped due to full output queue 0 input bytes 0 output bytes 0 protocol family mismatches 0 attempts to use tunnel with unspecified endpoint(s) tcp: 167270512 packets sent 155169891 data packets (202180710920 bytes) 1638646 data packets (2147950886 bytes) retransmitted 15314 fast retransmitted packets 7078190 ack-only packets (12071080 delayed) 0 URG only packets 5540 window probe packets 36313 window update packets 3341932 control packets 0 packets hardware-checksummed 111547222 packets received 88864288 acks (for 199370430017 bytes) 7683219 duplicate acks 0 acks for unsent data 0 acks for old data 12249277 packets (4687141549 bytes) received in-sequence 417940 completely duplicate packets (11116414 bytes) 5211 old duplicate packets 806 packets with some duplicate data (179003 bytes duplicated) 1297011 out-of-order packets (7173309 bytes) 5 packets (5 bytes) of data after window 5 window probes 2040443 window update packets 22313 packets received after close 295 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 0 discarded for missing IPsec protection 0 discarded due to memory shortage 0 packets hardware-checksummed 0 bad/missing md5 checksums 0 good md5 checksums 746 connection requests 3485840 connection accepts 3486338 connections established (including accepts) 3495720 connections closed (including 636723 drops) 0 connections drained 248 embryonic connections dropped 52914518 segments updated rtt (of 37891887 attempts) 1000453 retransmit timeouts 28646 connections dropped by rexmit timeout 6896 persist timeouts 5 keepalive timeouts 5 keepalive probes sent 0 connections dropped by keepalive 12842986 correct ACK header predictions 6710126 correct data packet header predictions 7188442 PCB cache misses 0 ECN connections accepted 0 ECE packets received 776 CWR packets received 90355 CE packets received 0 ECT packets sent 0 ECE packets sent 0 CWR packets sent cwr by fastrecovery: 469165 cwr by timeout: 1000453 cwr by ecn: 0 7513 bad connection attempts 3513244 SYN cache entries added 0 hash collisions 3485840 completed 83 aborted (no space to build PCB) 119 timed out 0 dropped due to overflow 0 dropped due to bucket overflow 27202 dropped due to RST 0 dropped due to ICMP unreachable 107624 SYN,ACKs retransmitted 64402 duplicate SYNs received for entries already in the cache 0 SYNs dropped (no route or no space) 453851 SACK recovery episodes 831147 segment rexmits in SACK recovery episodes 1126292568 byte rexmits in SACK recovery episodes 4403069 SACK options received 19974 SACK options sent udp: 2313974 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 20 with no checksum 0 input packets hardware-checksummed 0 output packets hardware-checksummed 1453 dropped due to no socket 2183211 broadcast/multicast datagrams dropped due to no socket 0 dropped due to missing IPsec protection 0 dropped due to full socket buffers 129310 delivered 129742 datagrams output 1450 missed PCB cache esp: 0 input ESP packets 0 output ESP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets with bad encryption received 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad payload size or padding received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input UDP encapsulated ESP packets 0 output UDP encapsulated ESP packets 0 UDP packets for non-encapsulating TDB received 0 input bytes 0 output bytes ah: 0 input AH packets 0 output AH packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets that failed verification received 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 possibly replayed packets received 0 packets with bad authenticator length received 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed crypto processing 0 input bytes 0 output bytes etherip: 0 packets shorter than header shows 0 packets were dropped due to full output queue 0 packets were dropped because of no interface/bridge information 0 packets dropped due to policy 0 packets dropped for other reasons 0 input ethernet-in-IP packets 0 output ethernet-in-IP packets 0 input bytes 0 output bytes ipcomp: 0 input IPCOMP packets 0 output IPCOMP packets 0 packets from unsupported protocol families 0 packets shorter than header shows 0 packets dropped due to policy 0 packets for which no TDB was found 0 input packets that failed to be processed 0 packets for which no XFORM was set in TDB received 0 packets were dropped due to full output queue 0 packets where counter wrapping was detected 0 packets attempted to use an invalid TDB 0 packets got larger than max IP packet size 0 packets that failed (de)compression processing 0 packets less than minimum compression length 0 input bytes 0 output bytes carp: 0 packets received (IPv4) 0 packets received (IPv6) 0 packets discarded for bad interface 0 packets discarded for wrong TTL 0 packets shorter than header 0 discarded for bad checksums 0 discarded packets with a bad version 0 discarded because packet too short 0 discarded for bad authentication 0 discarded for unknown vhid 0 discarded because of a bad address list 0 packets sent (IPv4) 0 packets sent (IPv6) 0 send failed due to mbuf memory error 0 transitions to master 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 pflow: 0 flows sent 0 packets sent 0 send failed due to mbuf memory error 0 send error ip6: 8443 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (duplicates or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 packets reassembled ok 5079 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 5086 packets sent from this host 0 packets sent with fabricated ip header 0 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 packets that violated scope rules 296 multicast packets which we don't join Input packet histogram: hop by hop: 6 TCP: 5079 ICMP6: 3358 Mbuf statistics: 4796 one mbufs two or more mbuf: lo0 = 283 3364 one ext mbufs 0 two or more ext mbufs 0 packets whose headers are not continuous 0 tunneling packets that can't find gif 0 packets discarded due to too many headers 0 failures of source address selection source addresses on an outgoing I/F 2 node-locals source addresses of same scope 2 node-locals 0 forward cache hit 0 forward cache miss icmp6: 0 calls to icmp6_error 0 errors not generated because old message was icmp6 or so 0 errors not generated because of rate limitation Output packet histogram: multicast listener report: 6 neighbor solicitation: 1 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input packet histogram: multicast listener report: 6 neighbor advertisement: 3062 Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 0 message responses generated 0 messages with too many ND options 0 messages with bad ND options 0 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes pim6: 0 messages received 0 messages received with too few bytes 0 messages received with bad checksum 0 messages received with bad version 0 registers received 0 bad registers received 0 registers sent rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output
SunOS 4.1.1
udp: 0 incomplete headers 0 bad data length fields 0 bad checksums 0 socket overflows tcp: 5129067 packets sent 3910227 data packets (468550717 bytes) 4484 data packets (812357 bytes) retransmitted 923879 ack-only packets (825994 delayed) 485 URG only packets 1681 window probe packets 229373 window update packets 58948 control packets 5321087 packets received 3615669 acks (for 468578941 bytes) 50858 duplicate acks 0 acks for unsent data 3926829 packets (596246583 bytes) received in-sequence 6795 completely duplicate packets (737152 bytes) 179 packets with some dup. data (8550 bytes duped) 44965 out-of-order packets (1892274 bytes) 13827 packets (1592878 bytes) of data after window 2097 window probes 6390 window update packets 238 packets received after close 1 discarded for bad checksum 0 discarded for bad header offset fields 0 discarded because packet too short 13210 connection requests 33906 connection accepts 46383 connections established (including accepts) 48029 connections closed (including 1160 drops) 821 embryonic connections dropped 3587807 segments updated rtt (of 3606368 attempts) 4564 retransmit timeouts 4 connections dropped by rexmit timeout 65 persist timeouts 6155 keepalive timeouts 2038 keepalive probes sent 115 connections dropped by keepalive icmp: 284410 calls to icmp_error 0 errors not generated 'cuz old message too short 0 errors not generated 'cuz old message was icmp Output histogram: echo reply: 6 destination unreachable: 284410 32 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input histogram: echo reply: 139 destination unreachable: 284523 source quench: 13 echo: 6 time exceeded: 24 6 message responses generated ip: 18208602 total packets received 0 bad header checksums 0 with size smaller than minimum 0 with data size < data length 0 with header length < data size 0 with data length < header length 950137 fragments received 0 fragments dropped (dup or out of space) 143 fragments dropped after timeout 0 packets forwarded 0 packets not forwardable 0 redirects sent 0 ip input queue drops
SunOS 5.3
UDP
udpInDatagrams =7414564 udpInErrors = 0
udpOutDatagrams =6512142
TCP tcpRtoAlgorithm = 4 tcpRtoMin = 200
tcpRtoMax = 60000 tcpMaxConn = -1
tcpActiveOpens = 54250 tcpPassiveOpens = 21125
tcpAttemptFails = 997 tcpEstabResets = 63047
tcpCurrEstab = 27 tcpOutSegs =25923926
tcpOutDataSegs =22351702 tcpOutDataBytes =2010766060
tcpRetransSegs =241242 tcpRetransBytes =83568747
tcpOutAck =3573443 tcpOutAckDelayed =1975482
tcpOutUrg = 1296 tcpOutWinUpdate = 4045
tcpOutWinProbe = 7231 tcpOutControl =270923
tcpOutRsts = 16769 tcpOutFastRetrans = 3065
tcpInSegs =16961868
tcpInAckSegs =11264480 tcpInAckBytes =2009322750
tcpInDupAck =330904 tcpInAckUnsent = 0
tcpInInorderSegs =10599470 tcpInInorderBytes =1690623444
tcpInUnorderSegs = 43478 tcpInUnorderBytes =28159048
tcpInDupSegs = 5277 tcpInDupBytes =907838
tcpInPartDupSegs = 575 tcpInPartDupBytes =245987
tcpInPastWinSegs = 0 tcpInPastWinBytes = 0
tcpInWinProbe = 6507 tcpInWinUpdate = 6059
tcpInClosed = 2010 tcpRttNoUpdate = 59423
tcpRttUpdate =3806139 tcpTimRetrans =246023
tcpTimRetransDrop = 195 tcpTimKeepalive = 4654
tcpTimKeepaliveProbe= 3451 tcpTimKeepaliveDrop = 1
IP ipForwarding = 2 ipDefaultTTL = 255
ipInReceives =25929592 ipInHdrErrors = 0
ipInAddrErrors = 0 ipInCksumErrs = 0
ipForwDatagrams = 0 ipForwProhibits = 0
ipInUnknownProtos = 0 ipInDiscards = 0
ipInDelivers =24355001 ipOutRequests =30760900
ipOutDiscards = 0 ipOutNoRoutes = 0
ipReasmTimeout = 60 ipReasmReqds =609440
ipReasmOKs =604871 ipReasmFails = 4398
ipReasmDuplicates = 9 ipReasmPartDups = 0
ipFragOKs =646218 ipFragFails = 0
ipFragCreates =3683908 ipRoutingDiscards = 0
tcpInErrs = 94 udpNoPorts =793941
udpInCksumErrs = 4 udpInOverflows = 667
rawipInOverflows = 76
ICMP icmpInMsgs = 7409 icmpInErrors = 0
icmpInCksumErrs = 0 icmpInUnknowns = 0
icmpInDestUnreachs = 879 icmpInTimeExcds = 599
icmpInParmProbs = 0 icmpInSrcQuenchs = 181
icmpInRedirects = 0 icmpInBadRedirects = 0
icmpInEchos = 1 icmpInEchoReps = 1
icmpInTimestamps = 0 icmpInTimestampReps = 0
icmpInAddrMasks = 0 icmpInAddrMaskReps = 0
icmpInFragNeeded = 36 icmpOutMsgs = 5243
icmpOutDrops = 315 icmpOutErrors = 0
icmpOutDestUnreachs = 3641 icmpOutTimeExcds = 1601
icmpOutParmProbs = 0 icmpOutSrcQuenchs = 0
icmpOutRedirects = 0 icmpOutEchos = 0
icmpOutEchoReps = 1 icmpOutTimestamps = 0
icmpOutTimestampReps= 0 icmpOutAddrMasks = 0
icmpOutAddrMaskReps = 0 icmpOutFragNeeded = 0
icmpInOverflows = 0
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