> We have DSL over frame relay customers with over 700 DLCIs on a T3 frame
> line, and linux doesnt seem to like having 700 virtual interfaces very
> much. With 900 channels, which is about the max per line, an ifconfig takes
> about 3 seconds to return, and I assume its sorting through a linked list....
I dont think its sorting anything. It may be doing DNS lookups but I dont
think so. It could also be user space inefficiencies
What you may want to do firstly is to strace the process and see what
syscalls are made a lot.
Alan
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