Gentoo Archives: gentoo-user

From: "José Pedro Saraiva" <nocive@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Packet loss unknown issue
Date: Tue, 12 Jul 2005 21:21:01
Message-Id: 12a67947050712141641af7b0a@mail.gmail.com
1 Hello,
2 I'm quite desperate and have tried just about anything to understand my issue.
3 I'll try to explain it...
4
5 I connect to the net through eth0 and have a masquerading through eth1
6 to my other computers, using shorewall.
7 My server never had any problems of this kind and all was fine until a
8 couple of days ago. I'm experiencing some heavy packet loss when
9 pinging different hosts.
10 I have isolated the problem (at least I think I did) and got to the
11 conclusion that issuing a simple 'ifconfig eth1 down' and leaving eth0
12 up, the packet loss vanishes.
13 Tests were made with all services down (shorewall, sshd, apache2,
14 mysqld, proftpd, sendmail, ...)
15 Here are the statistics:
16
17
18 - eth1 up -
19 # ping -c 200 google.com
20
21 --- google.com ping statistics ---
22 200 packets transmitted, 104 received, 48% packet loss, time 208227ms
23 rtt min/avg/max/mdev = 152.388/229.520/2016.847/279.805 ms, pipe 3
24
25 - eth1 down -
26 ping -c 200 google.com
27
28 --- google.com ping statistics ---
29 200 packets transmitted, 200 received, 0% packet loss, time 199175ms
30 rtt min/avg/max/mdev = 147.197/169.978/193.949/8.384 ms
31
32
33
34 Both network cards are using the same chipset (RLT8139) loaded as a
35 module in the kernel (2.6.11-hardened-r13).
36 I have tried to replace the network card (with one also using RLT8139)
37 and changing it from IRQ but with no effect.
38 Please help me, I've runned out of ideas...
39
40 Thanks in advance!
41 José Pedro
42
43 --
44 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] Packet loss unknown issue Robert Svoboda <r080@×××××.cz>