Re: strange network problem

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I don't know what is apic. and I didn't see it in the system log file.
This server woked fine before with Redhat 8 installed. Cannot figure out what caused this network problem.


rahul b jain cs student wrote:

I had a similar problem with a few of my servers. Do you see any apic
errors in your log file ? if so then you should boot your system with the
noapic option.

It would be helpful if you could post the kind of errors you are seeing in
your log files.

rahul.

On Tue, 10 Feb 2004, Xu Congyuan, Patrick wrote:



I am upgrading from redhat 8 to redhat el es 3.  I have problem with the
netowrk.

This server has two network cards installed.  One is connected to our
internal network.  The other one is connected to internet.

The problem is with the external network.

When the server is up for a while, the external network is down.  It
means it cannot be accessed via its external ip address.  The internal
network is working fine.

I found out the external network can be resumed by "ifdown eth1; ifup
eth1", which means to restart the network card.

When the external network is down, I run "ifconfig", and the result
shows eth1 is "UP" and working.   I really cannot figure out what caused
this problem.  Now what I can do is to restart the "eth1" every 10 minutes.

Any suggestion?

The result of "ifconfig" is shown below.

eth0      Link encap:Ethernet  HWaddr 00:03:47:F1:94:5A
         inet addr:192.168.42.248  Bcast:192.168.42.255  Mask:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:22271 errors:0 dropped:0 overruns:0 frame:0
         TX packets:9294 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:3229764 (3.0 Mb)  TX bytes:2858019 (2.7 Mb)
         Interrupt:10 Base address:0x1400 Memory:fe7e0000-fe7e0038

eth1      Link encap:Ethernet  HWaddr 00:03:47:F1:94:5C
         inet addr:202.73.42.108  Bcast:202.73.42.111  Mask:255.255.255.248
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:20886 errors:0 dropped:0 overruns:0 frame:0
         TX packets:12747 errors:0 dropped:0 overruns:0 carrier:0
         collisions:4 txqueuelen:1000
         RX bytes:3119008 (2.9 Mb)  TX bytes:5289086 (5.0 Mb)
         Interrupt:5 Base address:0x1440 Memory:fe780000-fe780038

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:200665 errors:0 dropped:0 overruns:0 frame:0
         TX packets:200665 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:19471584 (18.5 Mb)  TX bytes:19471584 (18.5 Mb)




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