Re: [Soekris] Faulty memory?

2010-06-30 Thread Phil Brutsche
I'm 99.9% certain you have bad memory - the instability and the sudden
memory drop are a dead giveaway.

Will something like memtest or goldmemory work on a soekris box?

On 6/30/2010 10:44 AM, Thomas Albech wrote:
> Hi everyone,
> 
> I recently experienced a very unstable Soekris 5501 that I have had
> running for quite some time without ever having problems with it. I
> replaced it for one I had in spare and noticed it only detected 410 MB
> RAM. (http://dl.dropbox.com/u/4669371/memory.jpg)
> Could this be a faulty memory block that cause the instability and lack
> of memory or has something else happened.

-- 

Phil Brutsche
p...@brutsche.us
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Re: [Soekris] Compatibility Issue w/ Soekris 5501 and Cisco 2640 Switch

2008-06-11 Thread Phil Brutsche
Yes, but it's specific to managed switches, and even then only if the
switch supports MDIX.

No managed switch? Sorry, not much you can do about it.

Chris Babcock wrote:
> I have also seen similar behavior with devices that do auto MDI<->MDIX 
> setting with some devices.  Unfortunately, I'm not sure if there is a 
> way to control the MDI/MDIX function in software.  Anybody, here know if 
> there is a way to control that in software?

-- 

Phil Brutsche
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Re: [Soekris] What is the meaning of BIOS parameter ConMute?

2007-10-18 Thread Phil Brutsche
der Mouse wrote:
> In my (admittedly limited) experience, this happens IFF spanning tree
> is enabled (both globally and on the affected port).  Turning off
> spanning tree usually makes it all just magically start working.

Close: if spanning trees are enabled globally, are enabled on the
affected port, and the switch port isn't set for "portfast" (see below),
then the device will fail DHCP/BOOTP if it tries to get it's lease
before the switch port is in the FORWARDING state.

With standard 802.1D STP it takes 30 seconds for the port to move from
the BLOCKING state to the FORWARDING state, or 10 seconds with the newer
802.1w RSTP.

Unfortunately blindly turning off STP in a working environment can be...
devastating to the uptime of your network infrastructure ;)

Any and all modern bridges (switches are a type of bridge) that support
STP also support "portfast" (the Cisco term for it, HP calls it an edge
port, many brands use Cisco's terminology) where the switchport will
*immediately* begin forwarding traffic while still listening for (and
broadcasting) STP bridge PDUs.

-- 

Phil Brutsche
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Re: [Soekris] Centos "Exception Occurred" during installation...

2007-05-01 Thread Phil Brutsche
CentOS 5 will not run on current Soekris hardware.

At best a net4801 is the equivalent of a 266MHz Pentium (aka i586),
CentOS 5 *requires* a Pentium II (aka i686) or better.

You will probably have better luck running CentOS 4, unless you want to
recompile all of CentOS 5 for a i586 ;)

Steve Miller wrote:
> Has anyone figured out a workaround for this problem?  I have only tried
> Centos5. Prior to installing packages it crashed with an Exception
> Occurred message.
> 
> I'm hoping that someone has worked around this little problem =) I'm
> using net4801's.

-- 

Phil Brutsche
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