Date: Mon, 17 Mar 2003 19:47:05 -0500 (EST) From: "Alvin Gunkel" <gunkel@oneofum.net> To: <freebsd-questions@freebsd.org> Subject: Interface Errors Message-ID: <64587.68.100.132.227.1047948425.squirrel@www.oneofum.net>
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I am seeing an increasing number of inbound errors on one of my systems. There are no errors indicated on the cisco switch the system is connected to. I get about 250 errors a day. There are no errors indicated on any other other lines from the 'netstat -ib' command, the output of which is below: Name Mtu Network Address Ipkts Ierrs Ibytes Opkts Oerrs Obytes Coll sis0 1500 <Link#1> 00:0a:e6:xx:xx:xx 1050392 1083 276417216 547475 0 124967248 5784 'netstat -ss' gives: [kosh:root /]$netstat -ss tcp: 1369978 packets sent 1110237 data packets (259598386 bytes) 4489 data packets (4558958 bytes) retransmitted 189167 ack-only packets (64881 delayed) 50239 window update packets 15961 control packets 1373018 packets received 983065 acks (for 259466635 bytes) 25411 duplicate acks 971899 packets (363304302 bytes) received in-sequence 903 completely duplicate packets (339224 bytes) 7 packets with some dup. data (3355 bytes duped) 14645 out-of-order packets (12898728 bytes) 1795 window update packets 194 packets received after close 327 discarded for bad checksums 5379 connection requests 6597 connection accepts 38 bad connection attempts 11787 connections established (including accepts) 12002 connections closed (including 780 drops) 1906 connections updated cached RTT on close 1906 connections updated cached RTT variance on close 394 connections updated cached ssthresh on close 176 embryonic connections dropped 976748 segments updated rtt (of 852139 attempts) 887 retransmit timeouts 10 connections dropped by rexmit timeout 365 keepalive timeouts 361 keepalive probes sent 4 connections dropped by keepalive 102144 correct ACK header predictions 332038 correct data packet header predictions 6665 syncache entries added 117 retransmitted 97 dupsyn 6597 completed 58 reset 9 stale 1 unreach udp: 62007 datagrams received 111 with bad checksum 129 dropped due to no socket 61767 delivered 64066 datagrams output ip: 1499389 total packets received 32 bad header checksums 14 with incorrect version number 1441915 packets for this host 196 packets for unknown/unsupported protocol 1 packet not forwardable 1442208 packets sent from this host 115 output packets dropped due to no bufs, etc. icmp: 129 calls to icmp_error Output histogram: echo reply: 6890 destination unreachable: 129 Input histogram: destination unreachable: 195 echo: 6890 time exceeded: 1 6890 message responses generated ICMP address mask responses are disabled igmp: Interface is onboard: sis0: <SiS 900 10/100BaseTX> port 0xc400-0xc4ff mem 0xcfffc000-0xcfffcfff irq 11 at device 3.0 on pci0 I have several other systems with similar configurations that have never shown any errors like this. The system is colocated, so I don't have easy access to swap cables, switch ports etc. Any idea what could be causing this? Thanks, Alvin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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