diff --git a/tools/marvin/marvin/integration/lib/base.py b/tools/marvin/marvin/integration/lib/base.py
index 87b0bbb7bbc..830914c0b4c 100644
--- a/tools/marvin/marvin/integration/lib/base.py
+++ b/tools/marvin/marvin/integration/lib/base.py
@@ -389,6 +389,27 @@ class VirtualMachine:
         cmd.id = volume.id
         return apiclient.detachVolume(cmd)
 
+    def add_nic(self, apiclient, networkId):
+        """Add a NIC to a VM"""
+        cmd = addNicToVirtualMachine.addNicToVirtualMachineCmd();
+        cmd.virtualmachineid = self.id
+        cmd.networkid = networkId
+        return apiclient.addNicToVirtualMachine(cmd)
+
+    def remove_nic(self, apiclient, nicId):
+        """Remove a NIC to a VM"""
+        cmd = removeNicFromVirtualMachine.removeNicFromVirtualMachineCmd()
+        cmd.nicid = nicId
+        cmd.virtualmachineid = self.id
+        return apiclient.removeNicFromVirtualMachine(cmd)
+
+    def update_default_nic(self, apiclient, nicId):
+        """Set a NIC to be the default network adapter for a VM"""
+        cmd = updateDefaultNicForVirtualMachine.updateDefaultNicForVirtualMachineCmd()
+        cmd.nicid = nicId
+        cmd.virtualmachineid = self.id
+        return apiclient.updateDefaultNicForVirtualMachine(cmd)
+
     @classmethod
     def list(cls, apiclient, **kwargs):
         """List all VMs matching criteria"""