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Date:      Sat, 03 Apr 1999 17:23:35 +0200
From:      Roelof Osinga <roelof@eboa.com>
To:        freebsd-questions@freebsd.org
Subject:   Horrendous round trip times, please help
Message-ID:  <37063277.37120CDA@eboa.com>

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The data below speaks for itself. When I hook up the FreeBSD box 
directly to the Internet via a CATV modem I get horrendous round
trip times. The other protocols seem to be working fast enough
but ICMP is behaving weird.

Below I have listed some ping results but direct (as n669) and
going through a Linux host (as forseti). The latter is about
two orders of magnitude faster.

>From dmesg:

ep1 at 0x360-0x36f irq 12 on isa
ep1: aui/utp[*UTP*] address 00:60:97:e4:98:db

This same card (3C509 PNP disabled) when in the Linux box will
perform as expected. In fact I ripped it out of that box to
eliminate hardware problems. I.e. I got the same results with
a DEC Etherworks III NIC previously.

If anyone knows how to make it behave, please tell! I'm at my
wits end.

Roelof

PS 3.1-STABLE, ifconfig and routing as posted in previous message; it's
now running within the LAN thus different situation.


n669:/usr/src/sys/i386/conf# ping -i 3 -c 20 gate.way
PING gate.way (194.134.128.1): 56 data bytes

64 bytes from 194.134.128.1: icmp_seq=1 ttl=255 time=1800.096 ms
64 bytes from 194.134.128.1: icmp_seq=2 ttl=255 time=1790.088 ms
64 bytes from 194.134.128.1: icmp_seq=3 ttl=255 time=1780.112 ms
64 bytes from 194.134.128.1: icmp_seq=4 ttl=255 time=2770.161 ms
64 bytes from 194.134.128.1: icmp_seq=5 ttl=255 time=1760.318 ms
64 bytes from 194.134.128.1: icmp_seq=6 ttl=255 time=1750.188 ms
64 bytes from 194.134.128.1: icmp_seq=7 ttl=255 time=1740.259 ms
64 bytes from 194.134.128.1: icmp_seq=8 ttl=255 time=1730.207 ms
64 bytes from 194.134.128.1: icmp_seq=9 ttl=255 time=1720.150 ms
64 bytes from 194.134.128.1: icmp_seq=10 ttl=255 time=1710.355 ms
64 bytes from 194.134.128.1: icmp_seq=11 ttl=255 time=2700.323 ms
64 bytes from 194.134.128.1: icmp_seq=12 ttl=255 time=1690.507 ms
64 bytes from 194.134.128.1: icmp_seq=13 ttl=255 time=1680.213 ms
64 bytes from 194.134.128.1: icmp_seq=14 ttl=255 time=2670.314 ms
64 bytes from 194.134.128.1: icmp_seq=15 ttl=255 time=1660.175 ms
64 bytes from 194.134.128.1: icmp_seq=16 ttl=255 time=1650.422 ms
64 bytes from 194.134.128.1: icmp_seq=17 ttl=255 time=1640.192 ms
64 bytes from 194.134.128.1: icmp_seq=18 ttl=255 time=1630.320 ms
64 bytes from 194.134.128.1: icmp_seq=19 ttl=255 time=1620.198 ms

--- gate.way ping statistics ---
20 packets transmitted, 20 packets received, 0% packet loss
round-trip min/avg/max/stddev = 1620.198/1865.461/2770.161/360.976 ms

forseti:~$ ping -c 15 194.134.128.1
PING 194.134.128.1 (194.134.128.1): 56 data bytes
64 bytes from 194.134.128.1: icmp_seq=0 ttl=254 time=33.988 ms
64 bytes from 194.134.128.1: icmp_seq=1 ttl=254 time=31.373 ms
64 bytes from 194.134.128.1: icmp_seq=2 ttl=254 time=24.704 ms
64 bytes from 194.134.128.1: icmp_seq=3 ttl=254 time=25.748 ms
64 bytes from 194.134.128.1: icmp_seq=4 ttl=254 time=23.463 ms
64 bytes from 194.134.128.1: icmp_seq=5 ttl=254 time=28.799 ms
64 bytes from 194.134.128.1: icmp_seq=6 ttl=254 time=28.828 ms
64 bytes from 194.134.128.1: icmp_seq=7 ttl=254 time=26.761 ms
64 bytes from 194.134.128.1: icmp_seq=8 ttl=254 time=27.507 ms
64 bytes from 194.134.128.1: icmp_seq=9 ttl=254 time=33.338 ms
64 bytes from 194.134.128.1: icmp_seq=10 ttl=254 time=26.937 ms
64 bytes from 194.134.128.1: icmp_seq=11 ttl=254 time=24.049 ms
64 bytes from 194.134.128.1: icmp_seq=12 ttl=254 time=24.524 ms
64 bytes from 194.134.128.1: icmp_seq=13 ttl=254 time=31.484 ms
64 bytes from 194.134.128.1: icmp_seq=14 ttl=254 time=29.790 ms

--- 194.134.128.1 ping statistics ---
15 packets transmitted, 15 packets received, 0% packet loss
round-trip min/avg/max/stddev = 23.463/28.086/33.988/3.260 ms

forseti:~$ traceroute 194.134.128.1
traceroute to 194.134.128.1 (194.134.128.1), 30 hops max, 40 byte packets
 1  10.0.0.10 (10.0.0.10)  1.105 ms  0.777 ms  0.714 ms
 2  * gate.way (194.134.128.1)  24.917 ms *
forseti:~$


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