eth1 goes to sleep when tired

[Dave Stevens]

Hi,

I have a little 2P server with 2 ports, eth0 and eth1. eth1 is  
connected to a router and dsl service it shares with other computers.  
It works fine. I need a faster dsl service so I have a different ISP's  
dsl modem connected to eth1. eth1 is connected to a ubuntu 10.04.1  
instance running apache2 to serve pages for a custon on-line service.  
Everything works fine for a while and whenever we are using the eth1  
service, but when we stop using it, the eth1 port somehow shuts down,  
no outside access is possible through ssh or the web. But if I tunnel  
in through the other port (eth0) and ping the outside world, or do a  
traceroute, then all of a sudden the access from outside is restored.

The server has CentOS in dom0 and uses Xen virtualization. There is a  
web server running in another domU CentOS instance that uses eth0 and  
has no issues. The motherboard is a Supermicro dual cpu with 2x  
opteron 2376, 16G ram, raid-10 storage.

I don't know where to look for more info. Baffled by this.

Any ideas welcome.

Dave



-- 
"It is no measure of health to be well adjusted to a profoundly sick society."
   Krishnamurti