Jesse Cantara wrote:
Actually, I spoke too soon.
Setting the NIC to 100 Mbit did not fix the issue, I just happened to
misdiagnose a fix, because it seemed to be working for quite some
time, but it is back to the old problems.
Basically, I'm at wits end right now. I'm going to go down to the
colocation and see if they can test the network drop into our cabinet.
If it's not that, then I'm convinced it's the tg3 driver.
-Jesse
Jesse Cantara wrote:
The problem ended up being the "tg3" Broadcom NIC kernel module
driver. It doesn't work properly at Gigabit speeds. Turning it down
to 100 Megabit fixed the issue. Does anybody know where I should
report this bug?
Thanks for all your help,
-Jesse
William L. Maltby wrote:
On Fri, 2007-07-20 at 12:29 -0400, Jesse Cantara wrote:
Hi Bob,
<snip>
The issue I'm having is that external traffic is being forwarded
properly, BUT that it drops the connection occasionally. It's not
consistent (maybe 2 out of 5 downloads from the internet through
the router to the webserver will drop), and the connections are
being made, so it's not a fundamental configuration issue. It's
something more sneaky. I'm thinking that there's something in the
kernel or network driver that isn't functioning properly, or maybe
a buffer that is becoming full and abandoning the connection?
<snip>
-Jesse
Bob Chiodini wrote:
Jesse Cantara wrote:
Hello,
I am trying to figure out a problem I'm having using CentOS on a
machine as a router. The short story is: any traffic routed
through the router seems to get disconnected at random occasionally.
<snip>
Someone recently posted a thread about a similar complaint to the lists
recently. IIRC, the [SOLVED] post mentioned a problem with MTU being
smaller than some of the packets received at one point, causing
fragmentation, and the next step not being to reassemble the packet
because of a certain flag being set.
I don't remember which bit the flag was and no little about this, but I
remember the general gist.
Maybe your problem is similar?
HTH
--
Bill
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Hi Jesse,
FWIW I have an IBM346 server at a client running RHEL4 using the
Broadcom NICS and the tg3 driver and have not experienced any dropped
packages over the past 18 months.
ChrisG
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