The easiest way to deal with setting like this for a small number of DTUs is
through the firmware GUI (assuming you've loaded GUI firmware).
For more DTUs he easiest way is through the .parms files. Use 'utfwadm -A -a
-V' and then edit /tftpboot/*.parms to set the value you want.
Or, if you're already using DHCP options, you can stick with that.
-Bob
On 05/ 3/11 08:22 PM, Erin Powers wrote:
I was a bit quick to respond a minute ago and I've now done a bit of
reading about MTU and sunrays. Would you recommend setting the value
via the DHCP option 26?
Thanks again for this excellent hint!
Erin
Erin Powers wrote:
Hi OttoM,
Thanks for the tidbit! Sure enough, the disconnected sessions are
reconnected with a lower MTU value. My only problem now is I'm not sure
what to do with this juicy bit of information... Is there any way I can
force a lower value from the initial connection or set a higher
tolerance for change or is that just crazy talk? Ultimately, my goal is
to get rid of the "random" disconnects.
Thanks again,
Erin
ottomeister wrote:
On Wed, Apr 27, 2011 at 2:22 PM, Erik Riedel<[email protected]> wrote:
Unfortunately I didn't find the source of this problem. Only thing I
recognized is that sometimes only one user gets locked and
sometimes several users get locked.
One thing you (both) might check is whether the 'MTU' attribute
in the /var/opt/SUNWut/log/messages logfile records for the
affected DTUs has different values before the unexpected
disconnect and after the subsequent reconnect. If the DTU
experiences IP fragmentation it will lower its MTU and will
force a disconnect+reconnect cycle in order to force the new
value to be adopted by the server.
OttoM.
__
Disclaimer: I am employed by Oracle. The statements and opinions
expressed here are my own and do not necessarily represent those
of Oracle Corporation.
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