Add loopbacks

schema.yaml

@@ -1,5 +1,12 @@
 interfaces: map(include('interface'),key=str(matches='.*GigabitEthernet[0-9]+/[0-9]+/[0-9]+|BondEthernet[0-9]+'))
 bondethernets: map(include('bondethernet'),key=str(matches='BondEthernet[0-9]+'))
+loopbacks: map(include('loopback'),key=str(matches='loop[0-9]+'))
+---
+loopback:
+  description: str(exclude='\'"',required=False)
+  lcp: str(max=8,matches='[a-z]+[a-z0-9-]{,7}',required=False)
+  mtu: int(min=128,max=9216)
+  addresses: list(ip_interface(),min=1,max=6,required=False)
 ---
 bondethernet:
   description: str(exclude='\'"',required=False)