config: add machines
diff --git a/config.proto b/config.proto
index 4408a3b..e569fb2 100644
--- a/config.proto
+++ b/config.proto
@@ -2,6 +2,7 @@
 
 message Config {
     repeated Switch switch = 1;
+    repeated Machine machine = 2;
 };
 
 message Switch {
@@ -14,9 +15,25 @@
     };
     Connector connector = 2;
     string address = 3;
+    message SwitchPort {
+        string name = 1;
+    };
     repeated SwitchPort managed_port = 4;
+    message Segment {
+        enum Type {
+            TYPE_INVALID = 0;
+            TYPE_VLAN = 1;
+        }
+        Type segment_type = 1;
+        int32 vlan_id = 2;
+    };
+    repeated Segment available_segment = 5;
 };
 
-message SwitchPort {
+message Machine {
     string name = 1;
+    message Port {
+        string name = 1;
+    };
+    repeated Port managed_port = 2;
 };
diff --git a/proto/config/config.pb.go b/proto/config/config.pb.go
deleted file mode 100644
index a111eea..0000000
--- a/proto/config/config.pb.go
+++ /dev/null
@@ -1,155 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: config.proto
-
-/*
-Package config is a generated protocol buffer package.
-
-It is generated from these files:
-	config.proto
-
-It has these top-level messages:
-	Config
-	Switch
-	SwitchPort
-*/
-package config
-
-import proto "github.com/golang/protobuf/proto"
-import fmt "fmt"
-import math "math"
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
-
-type Switch_Connector int32
-
-const (
-	Switch_CONNECTOR_INVALID Switch_Connector = 0
-	Switch_CONNECTOR_M6220   Switch_Connector = 1
-	Switch_CONNECTOR_ARISTA  Switch_Connector = 2
-)
-
-var Switch_Connector_name = map[int32]string{
-	0: "CONNECTOR_INVALID",
-	1: "CONNECTOR_M6220",
-	2: "CONNECTOR_ARISTA",
-}
-var Switch_Connector_value = map[string]int32{
-	"CONNECTOR_INVALID": 0,
-	"CONNECTOR_M6220":   1,
-	"CONNECTOR_ARISTA":  2,
-}
-
-func (x Switch_Connector) String() string {
-	return proto.EnumName(Switch_Connector_name, int32(x))
-}
-func (Switch_Connector) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{1, 0} }
-
-type Config struct {
-	Switch []*Switch `protobuf:"bytes,1,rep,name=switch" json:"switch,omitempty"`
-}
-
-func (m *Config) Reset()                    { *m = Config{} }
-func (m *Config) String() string            { return proto.CompactTextString(m) }
-func (*Config) ProtoMessage()               {}
-func (*Config) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
-
-func (m *Config) GetSwitch() []*Switch {
-	if m != nil {
-		return m.Switch
-	}
-	return nil
-}
-
-type Switch struct {
-	Name        string           `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-	Connector   Switch_Connector `protobuf:"varint,2,opt,name=connector,enum=Switch_Connector" json:"connector,omitempty"`
-	Address     string           `protobuf:"bytes,3,opt,name=address" json:"address,omitempty"`
-	ManagedPort []*SwitchPort    `protobuf:"bytes,4,rep,name=managed_port,json=managedPort" json:"managed_port,omitempty"`
-}
-
-func (m *Switch) Reset()                    { *m = Switch{} }
-func (m *Switch) String() string            { return proto.CompactTextString(m) }
-func (*Switch) ProtoMessage()               {}
-func (*Switch) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
-
-func (m *Switch) GetName() string {
-	if m != nil {
-		return m.Name
-	}
-	return ""
-}
-
-func (m *Switch) GetConnector() Switch_Connector {
-	if m != nil {
-		return m.Connector
-	}
-	return Switch_CONNECTOR_INVALID
-}
-
-func (m *Switch) GetAddress() string {
-	if m != nil {
-		return m.Address
-	}
-	return ""
-}
-
-func (m *Switch) GetManagedPort() []*SwitchPort {
-	if m != nil {
-		return m.ManagedPort
-	}
-	return nil
-}
-
-type SwitchPort struct {
-	Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
-}
-
-func (m *SwitchPort) Reset()                    { *m = SwitchPort{} }
-func (m *SwitchPort) String() string            { return proto.CompactTextString(m) }
-func (*SwitchPort) ProtoMessage()               {}
-func (*SwitchPort) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
-
-func (m *SwitchPort) GetName() string {
-	if m != nil {
-		return m.Name
-	}
-	return ""
-}
-
-func init() {
-	proto.RegisterType((*Config)(nil), "Config")
-	proto.RegisterType((*Switch)(nil), "Switch")
-	proto.RegisterType((*SwitchPort)(nil), "SwitchPort")
-	proto.RegisterEnum("Switch_Connector", Switch_Connector_name, Switch_Connector_value)
-}
-
-func init() { proto.RegisterFile("config.proto", fileDescriptor0) }
-
-var fileDescriptor0 = []byte{
-	// 242 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x90, 0x41, 0x4b, 0xc3, 0x30,
-	0x14, 0xc7, 0xcd, 0x36, 0x3a, 0xfa, 0x3a, 0xb4, 0x7b, 0x2a, 0xe4, 0x66, 0xe9, 0xa9, 0x5e, 0xaa,
-	0x54, 0xf0, 0x5e, 0xaa, 0x87, 0x82, 0xeb, 0x24, 0x1b, 0x5e, 0x47, 0x4c, 0xe3, 0xdc, 0x61, 0xc9,
-	0x48, 0x03, 0x7e, 0x63, 0x3f, 0x87, 0x18, 0x33, 0x73, 0xd9, 0x2d, 0xbf, 0x5f, 0x1e, 0xff, 0x7f,
-	0xf2, 0x60, 0x26, 0xb4, 0xfa, 0xd8, 0x6d, 0xcb, 0x83, 0xd1, 0x56, 0xe7, 0xb7, 0x10, 0x35, 0x8e,
-	0xf1, 0x06, 0xa2, 0xe1, 0x6b, 0x67, 0xc5, 0x27, 0x25, 0xd9, 0xb8, 0x48, 0xaa, 0x69, 0xb9, 0x72,
-	0xc8, 0xbc, 0xce, 0xbf, 0x09, 0x44, 0x7f, 0x0a, 0x11, 0x26, 0x8a, 0xef, 0x25, 0x25, 0x19, 0x29,
-	0x62, 0xe6, 0xce, 0x78, 0x07, 0xb1, 0xd0, 0x4a, 0x49, 0x61, 0xb5, 0xa1, 0xa3, 0x8c, 0x14, 0xe7,
-	0xd5, 0xdc, 0x47, 0x94, 0xcd, 0xf1, 0x82, 0x85, 0x19, 0xa4, 0x30, 0xe5, 0x7d, 0x6f, 0xe4, 0x30,
-	0xd0, 0xb1, 0xcb, 0x39, 0x22, 0x96, 0x30, 0xdb, 0x73, 0xc5, 0xb7, 0xb2, 0xdf, 0x1c, 0xb4, 0xb1,
-	0x74, 0xe2, 0x1e, 0x94, 0xf8, 0xb4, 0x57, 0x6d, 0x2c, 0x4b, 0xfc, 0xc0, 0x2f, 0xe4, 0x0b, 0x88,
-	0xff, 0x1b, 0xf0, 0x1a, 0xe6, 0xcd, 0xb2, 0xeb, 0x9e, 0x9b, 0xf5, 0x92, 0x6d, 0xda, 0xee, 0xad,
-	0x7e, 0x69, 0x9f, 0xd2, 0x33, 0xbc, 0x84, 0x8b, 0xa0, 0x17, 0x8f, 0x55, 0x75, 0x9f, 0x12, 0xbc,
-	0x82, 0x34, 0xc8, 0x9a, 0xb5, 0xab, 0x75, 0x9d, 0x8e, 0xf2, 0x0c, 0x20, 0x34, 0x9d, 0xfa, 0xeb,
-	0x7b, 0xe4, 0x96, 0xf7, 0xf0, 0x13, 0x00, 0x00, 0xff, 0xff, 0xe7, 0x8d, 0xb8, 0x1f, 0x4c, 0x01,
-	0x00, 0x00,
-}