The best replacement for routing is switching.

The best alternatives to routing are rated as following:
★★★★★  switching
★★★★★  account number
★★★  bridging
★★★  rooting
★★★  routed protocols
★★  forwarding
★★  rooting for a team
★★  dynamic routing
★  nat
★  swift code
★  static routing
★  checking
★  milling
★  aba
  vlan
  routed
  swift
  account
  bridging openvpn
  distance vector
  routing
  cheering
  classless routing
  checking number
  checking account number
  account numbers
  bgp routing

Your alternative for routing is not listed? Suggest!
Speaking about routing, one probably shouldn't forget about mvc.

Other search terms related to routing and their ratings are:
★★★★★ mvc
★★★★★ angularjs
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Google Trends

Scale is based on the average worldwide traffic of routing in all years. Click on graph for more.
routing
switching
account number