On 12/11/13 10:32 AM, Walter Parker wrote:
I have a pfSense 2.0.3 box with 5 interfaces, two of which are on
motherboard ethernet controllers using the NVIDIA nForce4 CK804 MCP9
Networking Adapter chipset.
I had a freenas box that kept disappearing from the network - not very
friendly for an iscsi server. After migrating to nas4free and still
experiencing the problem, I switch it to linux and the problem still
persisted. I ended up narrowing it down to the nvidia network interface
on the motherboard (00:08.0 Bridge: NVIDIA Corporation MCP55 Ethernet
(rev a3)). I don't think it's a hardware issue as such, but the
reverse-engineered open source drivers not being a perfect match for the
hardware. I disabled that interface and replaced with intel nics and
have never had a problem. If you can't replace the nics, try playing
with these kernel module options:
http://helpful.knobs-dials.com/index.php/Forcedeth_notes
https://bbs.archlinux.org/viewtopic.php?pid=1082381
Then replace the nics :) There's a stack of reports of issues in google
about nvidia and forcedeth. They caused me great pain.
Good luck.
These two connections connect to the upstream IP (WAN) and to the old
IP space for the local network (LAN).
I've been seeing the the connection between the upstream ISP and the
WAN go down (can reach it from the outside world, can't reach the
outside world from it). When this happens, I can get to box by
connecting to a box on the LAN network and then making a local
connection to the LAN interface. If ifconfig down the WAN interface
and then ifconfig up the WAN interface from the CLI, it comes back and
works just find.
The first time this happened, a Google search suggested that I was
running out of mbufs (because the error message said no buffers). So I
increased the number of buffers to 128K. The page that I ready said
that problem with the mbuf could be do to bad wiring causing excessive
packet loss on the interface
This time, I did not get a no buffers error message and according to
netstat -m, there where plenty of mbufs.
Any ideas as to why traffic stops on my WAN interface until it is
reset? Is cabling still a got idea or is it likely to be something else?
The system in question is a two proc system with dual core Opteron 280
running on a Supermicro Server Class Motherboard with 4GB of ECC RAM.
Walter
--
The greatest dangers to liberty lurk in insidious encroachment by
men of zeal, well-meaning but without understanding. -- Justice Louis
D. Brandeis
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