MPD Issues - Errors and Mysterious Packet Loss

[Dan Hardiker]

Probably best you ignore the past post while I go sleep ... should have been
aimed at freebsd-net@ ... sorry

Here you go freebsd-net guys. Sorry for the mess up.

----- Original Message ----- 
From: "Dan Hardiker" <dhardiker at eorigen.com>
To: "Michael Bretterklieber" <mbretter at a-quadrat.at>
Cc: <freebsd-java at FreeBSD.org>
Sent: Tuesday, September 09, 2003 10:41 AM
Subject: Re: MPD Issues - Errors and Mysterious Packet Loss


> > try from the XP Box:
> >
> > ping -l 1500 www.yahoo.de
> >
> > If you get no reply then try decreasing the ICMP packet size (-l
switch),
> > until you get a reply.
>
> Pinging 192.168.1.3 (internal ip of MPD server) from 192.168.1.101
(assigned
> ip of xp box) as external traffic isnt routed via vpn's gateway.
>
> 1500 - no reply x4
> 1400 - no reply x4
> 1300 - no reply x3 + 1 reply on the 3rd attempt
> 1200 - no reply x2 + 2 reply on the 1st / 4th attempt
> 1100 - no reply x3 + 1 reply on the 2nd attempt
> 1000 - no reply x2 + 2 reply on the 1st / 4th attempt
> 900  - no reply x3 + 1 reply on the 2nd attempt
> 800  - no reply x2 + 2 reply on the 1st / 4th attempt
> 700  - no reply x3 + 1 reply on the 2nd attempt
> // stopped the pinging for about 5 mins here //
> 600  - no reply x1 + 3 reply on the 1st / 2nd / 3rd attempt
> 500  - no reply x1 + 3 reply on the 1st / 2nd / 3rd attempt
> 400  - no reply x2 + 2 reply on the 1st / 2nd attempt
> 300  - no reply x2 + 2 reply on the 1st / 4th attempt
> 200  - no reply x2 + 2 reply on the 1st / 4th attempt
> 100  - no reply x2 + 2 reply on the 1st / 2nd attempt
> 50   - no reply x1 + 3 reply on the 1st / 2nd / 3rd attempt
>
> Heres a bit of info for you - while I doing some of the duplicate tests
> (pinging 1000 more than just 1 set of 4 for example) I though I would try
> pinging 192.168.1.101 from the mpd server to see if I could get through.
> Heres what I found:
>
> [10:29:32][root at armadillo]:~$ ping 192.168.1.101
> PING 192.168.1.101 (192.168.1.101): 56 data bytes
> ping: sendto: No buffer space available
> ping: sendto: No buffer space available
> ping: sendto: No buffer space available
> 64 bytes from 192.168.1.101: icmp_seq=3 ttl=128 time=0.922 ms
> 64 bytes from 192.168.1.101: icmp_seq=4 ttl=128 time=0.889 ms
> 64 bytes from 192.168.1.101: icmp_seq=5 ttl=128 time=0.882 ms
> 64 bytes from 192.168.1.101: icmp_seq=6 ttl=128 time=0.877 ms
> 64 bytes from 192.168.1.101: icmp_seq=7 ttl=128 time=0.871 ms
>
> NOTE: the TTL on the pings from the XP box are notabley 64 where as the
mpd
> server has them set to 128
>
> Buffer space seems to be running out somewhere?
>
> PS: I applied the TCP MSS patch, and even with TCP web traffic, Im still
> clocking up receiving errors by the dozen.
>
> I hope that helps
>
> --
> Dan Hardiker [dhardiker at eorigen.com]
> ADAM Systems Engineer
> eOrigen Ltd
>
> _______________________________________________
> freebsd-java at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-java
> To unsubscribe, send any mail to "freebsd-java-unsubscribe at freebsd.org"
>
>