[Rack] Network Upgrade

[Jonathan Lassoff]

TL;DR: Ben/SuperQ and I are do-ocratically upgrading our main switch
to a better one that has been sitting largely un-utilized.

This should hopefully compact our network gear footprint and keep
things easier to manage from remote.


We're migrating our Sonic.net and Monkeybrains uplinks, bikeshed (the
router), and WiFi AP links to the Juniper EX switch from the old Cisco
on the wall-o-tubes.

Cheers,
jof