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Date:      Thu, 19 Apr 2001 17:39:53 -0500
From:      Brian Poole <raj@cerias.purdue.edu>
To:        Jesper Skriver <jesper@FreeBSD.ORG>
Cc:        hubs@FreeBSD.ORG, dg@FreeBSD.ORG, noc@lightning.net
Subject:   Re: Packet loss between fa0-0.br1.nycmny.us and a1-0-1.cr2.nycmny1.us towards ftp.freesoftware.com
Message-ID:  <20010419173952.F83@basm.cerias.purdue.edu>
In-Reply-To: <20010419234813.A61420@skriver.dk>; from jesper@FreeBSD.ORG on Thu, Apr 19, 2001 at 11:48:13PM %2B0200
References:  <20010419234813.A61420@skriver.dk>

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Quoting Jesper Skriver (jesper@FreeBSD.ORG) from 19 April 2001:

> I see massive packet loss towards ftp.freesoftware.com from hosts in
> AS3292 (this test was performed from 195.249.6.93, a interface on
> ftp.dk.FreeBSD.org), it seems that it appear in your network between
..
> PS: This severy affect the ability to mirror ftp.FreeBSD.org on
>     ftp.dk.FreeBSD.org, do other of you mirror admin's have the
>     same problem ?


Hello,

I had noticed very poor connectivity to ftp.freebsd.org as well starting
sometime during this last week. Previously I've been able to get speeds 
upwards of 600kbyte/s regularly on large files, but as of late I've been
getting max speeds of ~40k/s with averages of < 5k/s (Normally averages 
range over 100k/s). This has definetly impacted my ability to mirror 
FreeBSD and I am curious to the problem as well.

My traceroute and pings are included. The packet loss is noticeable and
significant, but I'm not sure if I would go so far as to call it massive.

Tests are from 128.10.252.10 (ftp.cerias.purdue.edu, ftp9.freebsd.org),
AS17.

Hope this is resolved soon, I've already been getting questions as to why
my mirror is behind.


-b

raj@omelas:~ > /usr/sbin/traceroute -A ftp.freebsd.org
traceroute to ftp.freesoftware.com (216.66.64.162), 30 hops max, 40 byte packets
 1  cisco3.cerias.purdue.edu (128.10.252.1) [AS17]  1 ms  1 ms  1 ms
 2  * cisco5.cs.purdue.edu (128.10.21.250) [AS17]  2 ms * 
 3  cisco-tel-242.tcom.purdue.edu (128.210.242.22) [AS17]  1 ms  2 ms  1 ms
 4  Serial3-1-0.GW1.IND1.ALTER.NET (157.130.101.105) [AS701]  5 ms  4 ms  5 ms
 5  121.at-1-0-0.XR1.CHI4.ALTER.NET (146.188.208.162) [AS702]  8 ms  7 ms  8 ms
 6  295.at-1-0-0.XR1.CHI2.ALTER.NET (152.63.64.245) [AS701]  11 ms  11 ms  9 ms
 7  0.so-2-1-0.XL1.CHI2.ALTER.NET (152.63.67.129) [AS701]  10 ms  10 ms  12 ms
 8  POS6-0.BR5.CHI2.ALTER.NET (152.63.68.197) [AS701]  9 ms  10 ms  12 ms
 9  atm3-0.core1.Chicago1.Level3.net (209.0.225.5) [(null)]  10 ms  15 ms  17 ms
10  so-0-0-0.mp1.NewYork1.level3.net (209.247.8.13) [(null)]  64 ms  40 ms  39 ms
11  so-0-0-0.mp1.NewYork1.level3.net (209.247.8.13) [(null)]  40 ms  40 ms  40 ms
12  pos8-0.core1.NewYork1.level3.net (209.247.10.34) [(null)]  40 ms  41 ms  39 ms
13  gigaethernet6-0.ipcolo1.NewYork1.Level3.net (209.244.12.42) [(null)]  37 ms  37 ms  39 ms
14  fa0-0.br1.nycmny.us.lightning.net (209.244.186.10) [(null)]  40 ms  40 ms  40 ms
15  a1-0-1.cr2.nycmny1.us.lightning.net (216.66.3.2) [AS6427]  79 ms  55 ms  50 ms
16  s7-1.br1.nycmny1.us.lightning.net (216.66.3.29) [AS6427]  53 ms  50 ms  59 ms
17  ftp.freesoftware.com (216.66.64.162) [AS6427]  64 ms  78 ms *

raj@omelas:~ > ping -qc 100 209.244.186.10
PING 209.244.186.10 (209.244.186.10): 56 data bytes
--- 209.244.186.10 ping statistics ---
100 packets transmitted, 100 packets received, 0% packet loss
round-trip min/avg/max = 38.389/44.829/214.576 ms

raj@omelas:~ > ping -qc 100 216.66.3.2
PING 216.66.3.2 (216.66.3.2): 56 data bytes
--- 216.66.3.2 ping statistics ---
100 packets transmitted, 90 packets received, 10% packet loss
round-trip min/avg/max = 46.781/86.462/355.151 ms

raj@omelas:~ > ping -qc 100 ftp.freebsd.org
PING ftp.freesoftware.com (216.66.64.162): 56 data bytes
--- ftp.freesoftware.com ping statistics ---
100 packets transmitted, 85 packets received, 15% packet loss
round-trip min/avg/max = 38.901/71.481/93.345 ms

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