Your question makes no sense. First of all, there is no such thing as
"Linux 9". The current Linux kernel is up to 2.6.something. Second, I
don't know of any Linux computers that would normally have hardware that
would qualify as "uplinks". If you mean, "Can multiple network cards be
teamed in Linux?", the answer is yes, if the cards support it and the
next-in-line switch supports it. To find out how, try posting in a Linux
group.