So it works in one environment and does not in (presumably, since you did
not state otherwise and implied as much) an identical production
environment. What is different about the two environments in terms of
hardware, software, even if involving other things like the switches
involved? If it works here, but not there, find out what is different.

I'd also go with the latest code which is SLES 11 SP3, but since you have
things working on another setup it may be easier for you to resolve the
differences instead despite SLE 10's age.

Good luck.

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