I have two freebsd-5.0-release boxes seperated by a wireless link (IPSEC'd with Racoon). Problem is I appear to be getting a lot of socket overflows. Their is a fair bit of traffic flowing across the link (~10 gig/day), but their is a great deal of loss (particually UDP) and I'm wondering if I need to adjust any of the sysctl options - just I'm not entirely sure which - and by how much. Could someone also explain what exacty 'broadcast/multicast datagrams dropped due to no socket' means. Any advice that could be provided would be invaluable. The output from first freebsd box is here (netstat -s):
Thanks ! Colin ------------------------------------------------------------------------------------------------------- tcp: 863815 packets sent 676656 data packets (444829120 bytes) 3523 data packets (2852660 bytes) retransmitted 54 data packets unnecessarily retransmitted 0 resends initiated by MTU discovery 176357 ack-only packets (166875 delayed) 0 URG only packets 0 window probe packets 6902 window update packets 391 control packets 657363 packets received 610862 acks (for 444861509 bytes) 9254 duplicate acks 0 acks for unsent data 205088 packets (44201176 bytes) received in-sequence 33 completely duplicate packets (5120 bytes) 0 old duplicate packets 1 packet with some dup. data (48 bytes duped) 99 out-of-order packets (132536 bytes) 0 packets (0 bytes) of data after window 0 window probes 51 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 190 connection requests 119 connection accepts 0 bad connection attempts 0 listen queue overflows 207 connections established (including accepts) 1151052 connections closed (including 3 drops) 52 connections updated cached RTT on close 52 connections updated cached RTT variance on close 19 connections updated cached ssthresh on close 102 embryonic connections dropped 597633 segments updated rtt (of 597134 attempts) 400 retransmit timeouts 0 connections dropped by rexmit timeout 0 persist timeouts 0 connections dropped by persist timeout 1 keepalive timeout 1 keepalive probe sent 0 connections dropped by keepalive 2483 correct ACK header predictions 36666 correct data packet header predictions 119 syncache entries added 0 retransmitted 1 dupsyn 0 dropped 119 completed 0 bucket overflow 0 cache overflow 0 reset 0 stale 0 aborted 0 badack 0 unreach 0 zone failures 0 cookies sent 0 cookies received udp: 626041 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 10 with no checksum 115 dropped due to no socket 8175 broadcast/multicast datagrams dropped due to no socket 28514 dropped due to full socket buffers 0 not for hashed pcb 589237 delivered 16618821 datagrams output ip: 206977728 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 3434557 fragments received 453 fragments dropped (dup or out of space) 20946 fragments dropped after timeout 1689252 packets reassembled ok 71135803 packets for this host 6 packets for unknown/unsupported protocol 133973109 packets forwarded (0 packets fast forwarded) 13216 packets not forwardable 0 packets received for unknown multicast group 2 redirects sent 17605260 packets sent from this host 0 packets sent with fabricated ip header 15894414 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 26548319 output datagrams fragmented 53133007 fragments created 0 datagrams that can't be fragmented 0 tunneling packets that can't find gif -------------------------------------------------------------------------------------------------- And box B: tcp: 185391 packets sent 137562 data packets (100353383 bytes) 54 data packets (38303 bytes) retransmitted 2 data packets unnecessarily retransmitted 0 resends initiated by MTU discovery 40200 ack-only packets (21910 delayed) 0 URG only packets 0 window probe packets 7223 window update packets 373 control packets 168128 packets received 119724 acks (for 100353607 bytes) 413 duplicate acks 0 acks for unsent data 65794 packets (39140899 bytes) received in-sequence 133 completely duplicate packets (114056 bytes) 0 old duplicate packets 13 packets with some dup. data (2828 bytes duped) 5875 out-of-order packets (7028314 bytes) 0 packets (0 bytes) of data after window 0 window probes 50 window update packets 29 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 178 connection requests 79 connection accepts 0 bad connection attempts 0 listen queue overflows 201 connections established (including accepts) 167379 connections closed (including 7 drops) 40 connections updated cached RTT on close 40 connections updated cached RTT variance on close 7 connections updated cached ssthresh on close 56 embryonic connections dropped 118032 segments updated rtt (of 113803 attempts) 94 retransmit timeouts 0 connections dropped by rexmit timeout 0 persist timeouts 0 connections dropped by persist timeout 6 keepalive timeouts 0 keepalive probes sent 6 connections dropped by keepalive 6033 correct ACK header predictions 37112 correct data packet header predictions 79 syncache entries added 0 retransmitted 0 dupsyn 0 dropped 79 completed 0 bucket overflow 0 cache overflow 0 reset 0 stale 0 aborted 0 badack 0 unreach 0 zone failures 0 cookies sent 0 cookies received udp: 658406 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 118 with no checksum 28339 dropped due to no socket 142704 broadcast/multicast datagrams dropped due to no socket 10700 dropped due to full socket buffers 0 not for hashed pcb 476663 delivered 6971451 datagrams output ip: 82082783 total packets received 13 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 19153086 fragments received 187 fragments dropped (dup or out of space) 15522 fragments dropped after timeout 9545836 packets reassembled ok 27763287 packets for this host 0 packets for unknown/unsupported protocol 44617418 packets forwarded (0 packets fast forwarded) 16408 packets not forwardable 1 packet received for unknown multicast group 0 redirects sent 15113260 packets sent from this host 0 packets sent with fabricated ip header 6285094 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 313032 output datagrams fragmented 1509342 fragments created 14 datagrams that can't be fragmented 0 tunneling packets that can't find gif 0 datagrams with bad address in header _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"