Re: network dropouts

["Jan Kundrát" <jan.kundrat@fzu.cz>]

> Your syslog entries make it look like your eth0 carrier was out for
> one minute, but the thing to do is to observe the times at which you
> get outages, and see what syslog messages you get at those times --
> are you getting NETDEV_CHANGE messages at those points in time?

Originally, I thought that I got outage only if network is idle for some 
time, but right now, I typed `dmesg` in the ssh connection, it showed 
the log and then freezed (network, not machine). After a while, it get ok.

According to syslog messages, network drops out for exactly one minute. 
It hapens quite often (`grep forwarding /var/log/messages`):

Dec 17 15:56:17 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 18:38:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 19:35:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 19:42:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:01:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:17:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:24:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:36:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:43:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 20:53:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 21:01:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 21:11:02 zirafa xen-br0: port 1(eth0) entering forwarding state
Dec 17 21:19:02 zirafa xen-br0: port 1(eth0) entering forwarding state


> And maybe your switch is good, but 3c590 *is* an ancient p.o.s. ;-)

Well, comparing it to rtl-8139 based cards, I think 3com is better, IMHO 
;-). All the eepro cards are in more important machines...

So, do you think that the problem is in the NIC? `ifconfig` says 
"carrier: 0"...
I could replace it with some Realtek-based card. Is there anything else 
I can do?

TIA,
jkt

-- 
cd /local/pub && more beer > /dev/mouth



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