What's good safe PPC/MIPS/SPARC networking hardware with open firmware that works well with OpenBSD? Many ethernet plugs and 1U rack mount = bonus.

[Tinker]

Hi!

What's good PPC/MIPS/SPARC networking hardware with open firmware that 
works well with OpenBSD?

Minimalistic for minimizing attack surface.

(Many ethernet ports would be a bonus. 1U rack mount would be a bonus. 
ECC would be a bonus.)

Thanks!
Tinker