diff --git a/api/go/gosdn/topology/link.pb.go b/api/go/gosdn/topology/link.pb.go
new file mode 100644
index 0000000000000000000000000000000000000000..a6ccea7d9d76de9798d2f27d4c5548b430d0b33b
--- /dev/null
+++ b/api/go/gosdn/topology/link.pb.go
@@ -0,0 +1,221 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        (unknown)
+// source: gosdn/topology/link.proto
+
+package topology
+
+import (
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	_ "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Link struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id         string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name       string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	SourceNode *Node  `protobuf:"bytes,3,opt,name=sourceNode,proto3" json:"sourceNode,omitempty"`
+	TargetNode *Node  `protobuf:"bytes,4,opt,name=targetNode,proto3" json:"targetNode,omitempty"`
+	SourcePort *Port  `protobuf:"bytes,5,opt,name=sourcePort,proto3" json:"sourcePort,omitempty"`
+	TargetPort *Port  `protobuf:"bytes,6,opt,name=targetPort,proto3" json:"targetPort,omitempty"`
+}
+
+func (x *Link) Reset() {
+	*x = Link{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_link_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Link) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Link) ProtoMessage() {}
+
+func (x *Link) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_link_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Link.ProtoReflect.Descriptor instead.
+func (*Link) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_link_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Link) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *Link) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *Link) GetSourceNode() *Node {
+	if x != nil {
+		return x.SourceNode
+	}
+	return nil
+}
+
+func (x *Link) GetTargetNode() *Node {
+	if x != nil {
+		return x.TargetNode
+	}
+	return nil
+}
+
+func (x *Link) GetSourcePort() *Port {
+	if x != nil {
+		return x.SourcePort
+	}
+	return nil
+}
+
+func (x *Link) GetTargetPort() *Port {
+	if x != nil {
+		return x.TargetPort
+	}
+	return nil
+}
+
+var File_gosdn_topology_link_proto protoreflect.FileDescriptor
+
+var file_gosdn_topology_link_proto_rawDesc = []byte{
+	0x0a, 0x19, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79,
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+	0x50, 0x6f, 0x72, 0x74, 0x52, 0x0a, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x50, 0x6f, 0x72, 0x74,
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+	0x65, 0x74, 0x50, 0x6f, 0x72, 0x74, 0x42, 0x34, 0x5a, 0x32, 0x63, 0x6f, 0x64, 0x65, 0x2e, 0x66,
+	0x62, 0x69, 0x2e, 0x68, 0x2d, 0x64, 0x61, 0x2e, 0x64, 0x65, 0x2f, 0x64, 0x61, 0x6e, 0x65, 0x74,
+	0x2f, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x67, 0x6f, 0x2f, 0x67, 0x6f,
+	0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_gosdn_topology_link_proto_rawDescOnce sync.Once
+	file_gosdn_topology_link_proto_rawDescData = file_gosdn_topology_link_proto_rawDesc
+)
+
+func file_gosdn_topology_link_proto_rawDescGZIP() []byte {
+	file_gosdn_topology_link_proto_rawDescOnce.Do(func() {
+		file_gosdn_topology_link_proto_rawDescData = protoimpl.X.CompressGZIP(file_gosdn_topology_link_proto_rawDescData)
+	})
+	return file_gosdn_topology_link_proto_rawDescData
+}
+
+var file_gosdn_topology_link_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_gosdn_topology_link_proto_goTypes = []interface{}{
+	(*Link)(nil), // 0: gosdn.topology.Link
+	(*Node)(nil), // 1: gosdn.topology.Node
+	(*Port)(nil), // 2: gosdn.topology.Port
+}
+var file_gosdn_topology_link_proto_depIdxs = []int32{
+	1, // 0: gosdn.topology.Link.sourceNode:type_name -> gosdn.topology.Node
+	1, // 1: gosdn.topology.Link.targetNode:type_name -> gosdn.topology.Node
+	2, // 2: gosdn.topology.Link.sourcePort:type_name -> gosdn.topology.Port
+	2, // 3: gosdn.topology.Link.targetPort:type_name -> gosdn.topology.Port
+	4, // [4:4] is the sub-list for method output_type
+	4, // [4:4] is the sub-list for method input_type
+	4, // [4:4] is the sub-list for extension type_name
+	4, // [4:4] is the sub-list for extension extendee
+	0, // [0:4] is the sub-list for field type_name
+}
+
+func init() { file_gosdn_topology_link_proto_init() }
+func file_gosdn_topology_link_proto_init() {
+	if File_gosdn_topology_link_proto != nil {
+		return
+	}
+	file_gosdn_topology_node_proto_init()
+	file_gosdn_topology_port_proto_init()
+	if !protoimpl.UnsafeEnabled {
+		file_gosdn_topology_link_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Link); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_gosdn_topology_link_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_gosdn_topology_link_proto_goTypes,
+		DependencyIndexes: file_gosdn_topology_link_proto_depIdxs,
+		MessageInfos:      file_gosdn_topology_link_proto_msgTypes,
+	}.Build()
+	File_gosdn_topology_link_proto = out.File
+	file_gosdn_topology_link_proto_rawDesc = nil
+	file_gosdn_topology_link_proto_goTypes = nil
+	file_gosdn_topology_link_proto_depIdxs = nil
+}
diff --git a/api/go/gosdn/topology/node.pb.go b/api/go/gosdn/topology/node.pb.go
new file mode 100644
index 0000000000000000000000000000000000000000..0c9330271dd3e7d66d7f8454d254091c32961090
--- /dev/null
+++ b/api/go/gosdn/topology/node.pb.go
@@ -0,0 +1,164 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        (unknown)
+// source: gosdn/topology/node.proto
+
+package topology
+
+import (
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	_ "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Node struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id   string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *Node) Reset() {
+	*x = Node{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_node_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Node) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Node) ProtoMessage() {}
+
+func (x *Node) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_node_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Node.ProtoReflect.Descriptor instead.
+func (*Node) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_node_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Node) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *Node) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+var File_gosdn_topology_node_proto protoreflect.FileDescriptor
+
+var file_gosdn_topology_node_proto_rawDesc = []byte{
+	0x0a, 0x19, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79,
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+	0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x2a, 0x0a, 0x04, 0x4e,
+	0x6f, 0x64, 0x65, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x42, 0x34, 0x5a, 0x32, 0x63, 0x6f, 0x64, 0x65, 0x2e,
+	0x66, 0x62, 0x69, 0x2e, 0x68, 0x2d, 0x64, 0x61, 0x2e, 0x64, 0x65, 0x2f, 0x64, 0x61, 0x6e, 0x65,
+	0x74, 0x2f, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x67, 0x6f, 0x2f, 0x67,
+	0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_gosdn_topology_node_proto_rawDescOnce sync.Once
+	file_gosdn_topology_node_proto_rawDescData = file_gosdn_topology_node_proto_rawDesc
+)
+
+func file_gosdn_topology_node_proto_rawDescGZIP() []byte {
+	file_gosdn_topology_node_proto_rawDescOnce.Do(func() {
+		file_gosdn_topology_node_proto_rawDescData = protoimpl.X.CompressGZIP(file_gosdn_topology_node_proto_rawDescData)
+	})
+	return file_gosdn_topology_node_proto_rawDescData
+}
+
+var file_gosdn_topology_node_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_gosdn_topology_node_proto_goTypes = []interface{}{
+	(*Node)(nil), // 0: gosdn.topology.Node
+}
+var file_gosdn_topology_node_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_gosdn_topology_node_proto_init() }
+func file_gosdn_topology_node_proto_init() {
+	if File_gosdn_topology_node_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_gosdn_topology_node_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Node); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_gosdn_topology_node_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_gosdn_topology_node_proto_goTypes,
+		DependencyIndexes: file_gosdn_topology_node_proto_depIdxs,
+		MessageInfos:      file_gosdn_topology_node_proto_msgTypes,
+	}.Build()
+	File_gosdn_topology_node_proto = out.File
+	file_gosdn_topology_node_proto_rawDesc = nil
+	file_gosdn_topology_node_proto_goTypes = nil
+	file_gosdn_topology_node_proto_depIdxs = nil
+}
diff --git a/api/go/gosdn/topology/port.pb.go b/api/go/gosdn/topology/port.pb.go
new file mode 100644
index 0000000000000000000000000000000000000000..f1583e32a7081da933a17ad45b41ba8f3e3e1dc3
--- /dev/null
+++ b/api/go/gosdn/topology/port.pb.go
@@ -0,0 +1,155 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        (unknown)
+// source: gosdn/topology/port.proto
+
+package topology
+
+import (
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	_ "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Port struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (x *Port) Reset() {
+	*x = Port{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_port_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Port) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Port) ProtoMessage() {}
+
+func (x *Port) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_port_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Port.ProtoReflect.Descriptor instead.
+func (*Port) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_port_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Port) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+var File_gosdn_topology_port_proto protoreflect.FileDescriptor
+
+var file_gosdn_topology_port_proto_rawDesc = []byte{
+	0x0a, 0x19, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79,
+	0x2f, 0x70, 0x6f, 0x72, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0e, 0x67, 0x6f, 0x73,
+	0x64, 0x6e, 0x2e, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x1a, 0x1c, 0x67, 0x6f, 0x6f,
+	0x67, 0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69,
+	0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
+	0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72,
+	0x69, 0x70, 0x74, 0x6f, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x6f, 0x70, 0x65, 0x6e, 0x61, 0x70, 0x69, 0x76,
+	0x32, 0x2f, 0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61,
+	0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x16, 0x0a, 0x04, 0x50,
+	0x6f, 0x72, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x02, 0x69, 0x64, 0x42, 0x34, 0x5a, 0x32, 0x63, 0x6f, 0x64, 0x65, 0x2e, 0x66, 0x62, 0x69, 0x2e,
+	0x68, 0x2d, 0x64, 0x61, 0x2e, 0x64, 0x65, 0x2f, 0x64, 0x61, 0x6e, 0x65, 0x74, 0x2f, 0x67, 0x6f,
+	0x73, 0x64, 0x6e, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x67, 0x6f, 0x2f, 0x67, 0x6f, 0x73, 0x64, 0x6e,
+	0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x33,
+}
+
+var (
+	file_gosdn_topology_port_proto_rawDescOnce sync.Once
+	file_gosdn_topology_port_proto_rawDescData = file_gosdn_topology_port_proto_rawDesc
+)
+
+func file_gosdn_topology_port_proto_rawDescGZIP() []byte {
+	file_gosdn_topology_port_proto_rawDescOnce.Do(func() {
+		file_gosdn_topology_port_proto_rawDescData = protoimpl.X.CompressGZIP(file_gosdn_topology_port_proto_rawDescData)
+	})
+	return file_gosdn_topology_port_proto_rawDescData
+}
+
+var file_gosdn_topology_port_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
+var file_gosdn_topology_port_proto_goTypes = []interface{}{
+	(*Port)(nil), // 0: gosdn.topology.Port
+}
+var file_gosdn_topology_port_proto_depIdxs = []int32{
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_gosdn_topology_port_proto_init() }
+func file_gosdn_topology_port_proto_init() {
+	if File_gosdn_topology_port_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_gosdn_topology_port_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Port); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_gosdn_topology_port_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   1,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_gosdn_topology_port_proto_goTypes,
+		DependencyIndexes: file_gosdn_topology_port_proto_depIdxs,
+		MessageInfos:      file_gosdn_topology_port_proto_msgTypes,
+	}.Build()
+	File_gosdn_topology_port_proto = out.File
+	file_gosdn_topology_port_proto_rawDesc = nil
+	file_gosdn_topology_port_proto_goTypes = nil
+	file_gosdn_topology_port_proto_depIdxs = nil
+}
diff --git a/api/go/gosdn/topology/topology.pb.go b/api/go/gosdn/topology/topology.pb.go
new file mode 100644
index 0000000000000000000000000000000000000000..9119f79b6fa8e77fdd44a9ce358ef434382937f8
--- /dev/null
+++ b/api/go/gosdn/topology/topology.pb.go
@@ -0,0 +1,539 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.27.1
+// 	protoc        (unknown)
+// source: gosdn/topology/topology.proto
+
+package topology
+
+import (
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2/options"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	_ "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Status int32
+
+const (
+	Status_STATUS_UNSPECIFIED Status = 0
+	Status_STATUS_OK          Status = 1
+	Status_STATUS_ERROR       Status = 2
+)
+
+// Enum value maps for Status.
+var (
+	Status_name = map[int32]string{
+		0: "STATUS_UNSPECIFIED",
+		1: "STATUS_OK",
+		2: "STATUS_ERROR",
+	}
+	Status_value = map[string]int32{
+		"STATUS_UNSPECIFIED": 0,
+		"STATUS_OK":          1,
+		"STATUS_ERROR":       2,
+	}
+)
+
+func (x Status) Enum() *Status {
+	p := new(Status)
+	*p = x
+	return p
+}
+
+func (x Status) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Status) Descriptor() protoreflect.EnumDescriptor {
+	return file_gosdn_topology_topology_proto_enumTypes[0].Descriptor()
+}
+
+func (Status) Type() protoreflect.EnumType {
+	return &file_gosdn_topology_topology_proto_enumTypes[0]
+}
+
+func (x Status) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Status.Descriptor instead.
+func (Status) EnumDescriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{0}
+}
+
+type Topology struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Links []*Link `protobuf:"bytes,1,rep,name=links,proto3" json:"links,omitempty"`
+}
+
+func (x *Topology) Reset() {
+	*x = Topology{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_topology_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Topology) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Topology) ProtoMessage() {}
+
+func (x *Topology) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_topology_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Topology.ProtoReflect.Descriptor instead.
+func (*Topology) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Topology) GetLinks() []*Link {
+	if x != nil {
+		return x.Links
+	}
+	return nil
+}
+
+// AddLink
+type AddLinkRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Timestamp int64 `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Link      *Link `protobuf:"bytes,2,opt,name=link,proto3" json:"link,omitempty"`
+}
+
+func (x *AddLinkRequest) Reset() {
+	*x = AddLinkRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_topology_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AddLinkRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AddLinkRequest) ProtoMessage() {}
+
+func (x *AddLinkRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_topology_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AddLinkRequest.ProtoReflect.Descriptor instead.
+func (*AddLinkRequest) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *AddLinkRequest) GetTimestamp() int64 {
+	if x != nil {
+		return x.Timestamp
+	}
+	return 0
+}
+
+func (x *AddLinkRequest) GetLink() *Link {
+	if x != nil {
+		return x.Link
+	}
+	return nil
+}
+
+type AddLinkResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Timestamp int64  `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Status    Status `protobuf:"varint,2,opt,name=status,proto3,enum=gosdn.topology.Status" json:"status,omitempty"`
+}
+
+func (x *AddLinkResponse) Reset() {
+	*x = AddLinkResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_topology_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *AddLinkResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*AddLinkResponse) ProtoMessage() {}
+
+func (x *AddLinkResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_topology_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use AddLinkResponse.ProtoReflect.Descriptor instead.
+func (*AddLinkResponse) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *AddLinkResponse) GetTimestamp() int64 {
+	if x != nil {
+		return x.Timestamp
+	}
+	return 0
+}
+
+func (x *AddLinkResponse) GetStatus() Status {
+	if x != nil {
+		return x.Status
+	}
+	return Status_STATUS_UNSPECIFIED
+}
+
+// GetTopology
+type GetTopologyRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Timestamp int64 `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+}
+
+func (x *GetTopologyRequest) Reset() {
+	*x = GetTopologyRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_topology_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetTopologyRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetTopologyRequest) ProtoMessage() {}
+
+func (x *GetTopologyRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_topology_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetTopologyRequest.ProtoReflect.Descriptor instead.
+func (*GetTopologyRequest) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *GetTopologyRequest) GetTimestamp() int64 {
+	if x != nil {
+		return x.Timestamp
+	}
+	return 0
+}
+
+type GetTopologyResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Timestamp int64     `protobuf:"varint,1,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	Status    Status    `protobuf:"varint,2,opt,name=status,proto3,enum=gosdn.topology.Status" json:"status,omitempty"`
+	Toplogy   *Topology `protobuf:"bytes,3,opt,name=toplogy,proto3" json:"toplogy,omitempty"`
+}
+
+func (x *GetTopologyResponse) Reset() {
+	*x = GetTopologyResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_gosdn_topology_topology_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetTopologyResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetTopologyResponse) ProtoMessage() {}
+
+func (x *GetTopologyResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_gosdn_topology_topology_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use GetTopologyResponse.ProtoReflect.Descriptor instead.
+func (*GetTopologyResponse) Descriptor() ([]byte, []int) {
+	return file_gosdn_topology_topology_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *GetTopologyResponse) GetTimestamp() int64 {
+	if x != nil {
+		return x.Timestamp
+	}
+	return 0
+}
+
+func (x *GetTopologyResponse) GetStatus() Status {
+	if x != nil {
+		return x.Status
+	}
+	return Status_STATUS_UNSPECIFIED
+}
+
+func (x *GetTopologyResponse) GetToplogy() *Topology {
+	if x != nil {
+		return x.Toplogy
+	}
+	return nil
+}
+
+var File_gosdn_topology_topology_proto protoreflect.FileDescriptor
+
+var file_gosdn_topology_topology_proto_rawDesc = []byte{
+	0x0a, 0x1d, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79,
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+	0x19, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x2f,
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+	0x6e, 0x73, 0x65, 0x22, 0x11, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x0b, 0x12, 0x09, 0x2f, 0x74, 0x6f,
+	0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x42, 0x34, 0x5a, 0x32, 0x63, 0x6f, 0x64, 0x65, 0x2e, 0x66,
+	0x62, 0x69, 0x2e, 0x68, 0x2d, 0x64, 0x61, 0x2e, 0x64, 0x65, 0x2f, 0x64, 0x61, 0x6e, 0x65, 0x74,
+	0x2f, 0x67, 0x6f, 0x73, 0x64, 0x6e, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x67, 0x6f, 0x2f, 0x67, 0x6f,
+	0x73, 0x64, 0x6e, 0x2f, 0x74, 0x6f, 0x70, 0x6f, 0x6c, 0x6f, 0x67, 0x79, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_gosdn_topology_topology_proto_rawDescOnce sync.Once
+	file_gosdn_topology_topology_proto_rawDescData = file_gosdn_topology_topology_proto_rawDesc
+)
+
+func file_gosdn_topology_topology_proto_rawDescGZIP() []byte {
+	file_gosdn_topology_topology_proto_rawDescOnce.Do(func() {
+		file_gosdn_topology_topology_proto_rawDescData = protoimpl.X.CompressGZIP(file_gosdn_topology_topology_proto_rawDescData)
+	})
+	return file_gosdn_topology_topology_proto_rawDescData
+}
+
+var file_gosdn_topology_topology_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_gosdn_topology_topology_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_gosdn_topology_topology_proto_goTypes = []interface{}{
+	(Status)(0),                 // 0: gosdn.topology.Status
+	(*Topology)(nil),            // 1: gosdn.topology.Topology
+	(*AddLinkRequest)(nil),      // 2: gosdn.topology.AddLinkRequest
+	(*AddLinkResponse)(nil),     // 3: gosdn.topology.AddLinkResponse
+	(*GetTopologyRequest)(nil),  // 4: gosdn.topology.GetTopologyRequest
+	(*GetTopologyResponse)(nil), // 5: gosdn.topology.GetTopologyResponse
+	(*Link)(nil),                // 6: gosdn.topology.Link
+}
+var file_gosdn_topology_topology_proto_depIdxs = []int32{
+	6, // 0: gosdn.topology.Topology.links:type_name -> gosdn.topology.Link
+	6, // 1: gosdn.topology.AddLinkRequest.link:type_name -> gosdn.topology.Link
+	0, // 2: gosdn.topology.AddLinkResponse.status:type_name -> gosdn.topology.Status
+	0, // 3: gosdn.topology.GetTopologyResponse.status:type_name -> gosdn.topology.Status
+	1, // 4: gosdn.topology.GetTopologyResponse.toplogy:type_name -> gosdn.topology.Topology
+	2, // 5: gosdn.topology.TopologyService.AddLink:input_type -> gosdn.topology.AddLinkRequest
+	4, // 6: gosdn.topology.TopologyService.GetTopology:input_type -> gosdn.topology.GetTopologyRequest
+	3, // 7: gosdn.topology.TopologyService.AddLink:output_type -> gosdn.topology.AddLinkResponse
+	5, // 8: gosdn.topology.TopologyService.GetTopology:output_type -> gosdn.topology.GetTopologyResponse
+	7, // [7:9] is the sub-list for method output_type
+	5, // [5:7] is the sub-list for method input_type
+	5, // [5:5] is the sub-list for extension type_name
+	5, // [5:5] is the sub-list for extension extendee
+	0, // [0:5] is the sub-list for field type_name
+}
+
+func init() { file_gosdn_topology_topology_proto_init() }
+func file_gosdn_topology_topology_proto_init() {
+	if File_gosdn_topology_topology_proto != nil {
+		return
+	}
+	file_gosdn_topology_link_proto_init()
+	if !protoimpl.UnsafeEnabled {
+		file_gosdn_topology_topology_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Topology); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_gosdn_topology_topology_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddLinkRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_gosdn_topology_topology_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*AddLinkResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_gosdn_topology_topology_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetTopologyRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_gosdn_topology_topology_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetTopologyResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_gosdn_topology_topology_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   5,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_gosdn_topology_topology_proto_goTypes,
+		DependencyIndexes: file_gosdn_topology_topology_proto_depIdxs,
+		EnumInfos:         file_gosdn_topology_topology_proto_enumTypes,
+		MessageInfos:      file_gosdn_topology_topology_proto_msgTypes,
+	}.Build()
+	File_gosdn_topology_topology_proto = out.File
+	file_gosdn_topology_topology_proto_rawDesc = nil
+	file_gosdn_topology_topology_proto_goTypes = nil
+	file_gosdn_topology_topology_proto_depIdxs = nil
+}
diff --git a/api/go/gosdn/topology/topology.pb.gw.go b/api/go/gosdn/topology/topology.pb.gw.go
new file mode 100644
index 0000000000000000000000000000000000000000..0bd7ba238d02ab3d564dd579a3fc89a28623642d
--- /dev/null
+++ b/api/go/gosdn/topology/topology.pb.gw.go
@@ -0,0 +1,250 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: gosdn/topology/topology.proto
+
+/*
+Package topology is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package topology
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/proto"
+)
+
+// Suppress "imported and not used" errors
+var _ codes.Code
+var _ io.Reader
+var _ status.Status
+var _ = runtime.String
+var _ = utilities.NewDoubleArray
+var _ = metadata.Join
+
+func request_TopologyService_AddLink_0(ctx context.Context, marshaler runtime.Marshaler, client TopologyServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq AddLinkRequest
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.AddLink(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_TopologyService_AddLink_0(ctx context.Context, marshaler runtime.Marshaler, server TopologyServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq AddLinkRequest
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.AddLink(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+var (
+	filter_TopologyService_GetTopology_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_TopologyService_GetTopology_0(ctx context.Context, marshaler runtime.Marshaler, client TopologyServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetTopologyRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_TopologyService_GetTopology_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.GetTopology(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_TopologyService_GetTopology_0(ctx context.Context, marshaler runtime.Marshaler, server TopologyServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetTopologyRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_TopologyService_GetTopology_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.GetTopology(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+// RegisterTopologyServiceHandlerServer registers the http handlers for service TopologyService to "mux".
+// UnaryRPC     :call TopologyServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterTopologyServiceHandlerFromEndpoint instead.
+func RegisterTopologyServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server TopologyServiceServer) error {
+
+	mux.Handle("POST", pattern_TopologyService_AddLink_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/gosdn.topology.TopologyService/AddLink", runtime.WithHTTPPathPattern("/topology/create"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_TopologyService_AddLink_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TopologyService_AddLink_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_TopologyService_GetTopology_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/gosdn.topology.TopologyService/GetTopology", runtime.WithHTTPPathPattern("/topology"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_TopologyService_GetTopology_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TopologyService_GetTopology_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+// RegisterTopologyServiceHandlerFromEndpoint is same as RegisterTopologyServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterTopologyServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterTopologyServiceHandler(ctx, mux, conn)
+}
+
+// RegisterTopologyServiceHandler registers the http handlers for service TopologyService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterTopologyServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterTopologyServiceHandlerClient(ctx, mux, NewTopologyServiceClient(conn))
+}
+
+// RegisterTopologyServiceHandlerClient registers the http handlers for service TopologyService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "TopologyServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "TopologyServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "TopologyServiceClient" to call the correct interceptors.
+func RegisterTopologyServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client TopologyServiceClient) error {
+
+	mux.Handle("POST", pattern_TopologyService_AddLink_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/gosdn.topology.TopologyService/AddLink", runtime.WithHTTPPathPattern("/topology/create"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_TopologyService_AddLink_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TopologyService_AddLink_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_TopologyService_GetTopology_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/gosdn.topology.TopologyService/GetTopology", runtime.WithHTTPPathPattern("/topology"))
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_TopologyService_GetTopology_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TopologyService_GetTopology_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_TopologyService_AddLink_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"topology", "create"}, ""))
+
+	pattern_TopologyService_GetTopology_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0}, []string{"topology"}, ""))
+)
+
+var (
+	forward_TopologyService_AddLink_0 = runtime.ForwardResponseMessage
+
+	forward_TopologyService_GetTopology_0 = runtime.ForwardResponseMessage
+)
diff --git a/api/go/gosdn/topology/topology_grpc.pb.go b/api/go/gosdn/topology/topology_grpc.pb.go
new file mode 100644
index 0000000000000000000000000000000000000000..646a8ebf30a472792a1af1e4267fbf8b65fdd054
--- /dev/null
+++ b/api/go/gosdn/topology/topology_grpc.pb.go
@@ -0,0 +1,145 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package topology
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// TopologyServiceClient is the client API for TopologyService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type TopologyServiceClient interface {
+	// Creates roles, requires login beforehand.
+	// Requires highest permissions.
+	AddLink(ctx context.Context, in *AddLinkRequest, opts ...grpc.CallOption) (*AddLinkResponse, error)
+	// Requests all roles with their permissions, requires login beforehand.
+	// Requires highest permissions.
+	GetTopology(ctx context.Context, in *GetTopologyRequest, opts ...grpc.CallOption) (*GetTopologyResponse, error)
+}
+
+type topologyServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewTopologyServiceClient(cc grpc.ClientConnInterface) TopologyServiceClient {
+	return &topologyServiceClient{cc}
+}
+
+func (c *topologyServiceClient) AddLink(ctx context.Context, in *AddLinkRequest, opts ...grpc.CallOption) (*AddLinkResponse, error) {
+	out := new(AddLinkResponse)
+	err := c.cc.Invoke(ctx, "/gosdn.topology.TopologyService/AddLink", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *topologyServiceClient) GetTopology(ctx context.Context, in *GetTopologyRequest, opts ...grpc.CallOption) (*GetTopologyResponse, error) {
+	out := new(GetTopologyResponse)
+	err := c.cc.Invoke(ctx, "/gosdn.topology.TopologyService/GetTopology", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// TopologyServiceServer is the server API for TopologyService service.
+// All implementations must embed UnimplementedTopologyServiceServer
+// for forward compatibility
+type TopologyServiceServer interface {
+	// Creates roles, requires login beforehand.
+	// Requires highest permissions.
+	AddLink(context.Context, *AddLinkRequest) (*AddLinkResponse, error)
+	// Requests all roles with their permissions, requires login beforehand.
+	// Requires highest permissions.
+	GetTopology(context.Context, *GetTopologyRequest) (*GetTopologyResponse, error)
+	mustEmbedUnimplementedTopologyServiceServer()
+}
+
+// UnimplementedTopologyServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedTopologyServiceServer struct {
+}
+
+func (UnimplementedTopologyServiceServer) AddLink(context.Context, *AddLinkRequest) (*AddLinkResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AddLink not implemented")
+}
+func (UnimplementedTopologyServiceServer) GetTopology(context.Context, *GetTopologyRequest) (*GetTopologyResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetTopology not implemented")
+}
+func (UnimplementedTopologyServiceServer) mustEmbedUnimplementedTopologyServiceServer() {}
+
+// UnsafeTopologyServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to TopologyServiceServer will
+// result in compilation errors.
+type UnsafeTopologyServiceServer interface {
+	mustEmbedUnimplementedTopologyServiceServer()
+}
+
+func RegisterTopologyServiceServer(s grpc.ServiceRegistrar, srv TopologyServiceServer) {
+	s.RegisterService(&TopologyService_ServiceDesc, srv)
+}
+
+func _TopologyService_AddLink_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(AddLinkRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TopologyServiceServer).AddLink(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/gosdn.topology.TopologyService/AddLink",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TopologyServiceServer).AddLink(ctx, req.(*AddLinkRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TopologyService_GetTopology_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetTopologyRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TopologyServiceServer).GetTopology(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/gosdn.topology.TopologyService/GetTopology",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TopologyServiceServer).GetTopology(ctx, req.(*GetTopologyRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// TopologyService_ServiceDesc is the grpc.ServiceDesc for TopologyService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var TopologyService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "gosdn.topology.TopologyService",
+	HandlerType: (*TopologyServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "AddLink",
+			Handler:    _TopologyService_AddLink_Handler,
+		},
+		{
+			MethodName: "GetTopology",
+			Handler:    _TopologyService_GetTopology_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "gosdn/topology/topology.proto",
+}
diff --git a/api/openapiv2/gosdn_northbound.swagger.json b/api/openapiv2/gosdn_northbound.swagger.json
index 9db819cb09f428c5d726f85f3e0e199d7a0ec429..4cd6a8a702f29bb36f5dbbcddcf980b41106a996 100644
--- a/api/openapiv2/gosdn_northbound.swagger.json
+++ b/api/openapiv2/gosdn_northbound.swagger.json
@@ -17,6 +17,9 @@
     {
       "name": "PndService"
     },
+    {
+      "name": "Collector"
+    },
     {
       "name": "gNMI"
     },
@@ -30,19 +33,19 @@
       "name": "CoreService"
     },
     {
-      "name": "Collector"
+      "name": "CsbiService"
     },
     {
       "name": "AuthService"
     },
     {
-      "name": "UserService"
+      "name": "RoleService"
     },
     {
-      "name": "CsbiService"
+      "name": "UserService"
     },
     {
-      "name": "RoleService"
+      "name": "TopologyService"
     }
   ],
   "consumes": [
@@ -1031,6 +1034,71 @@
         ]
       }
     },
+    "/topology": {
+      "get": {
+        "summary": "Requests all roles with their permissions, requires login beforehand.\nRequires highest permissions.",
+        "operationId": "TopologyService_GetTopology",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/topologyGetTopologyResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/googlerpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "timestamp",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "TopologyService"
+        ]
+      }
+    },
+    "/topology/create": {
+      "post": {
+        "summary": "Creates roles, requires login beforehand.\nRequires highest permissions.",
+        "operationId": "TopologyService_AddLink",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/topologyAddLinkResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/googlerpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/topologyAddLinkRequest"
+            }
+          }
+        ],
+        "tags": [
+          "TopologyService"
+        ]
+      }
+    },
     "/users": {
       "get": {
         "summary": "Requests information about available users, requires login beforehand.\nRequires highest possible permissions.",
@@ -2532,6 +2600,15 @@
       "default": "TYPE_UNSPECIFIED",
       "title": "Changed according to style guide:\nhttps://docs.buf.build/best-practices/style-guide#enums"
     },
+    "gosdntopologyStatus": {
+      "type": "string",
+      "enum": [
+        "STATUS_UNSPECIFIED",
+        "STATUS_OK",
+        "STATUS_ERROR"
+      ],
+      "default": "STATUS_UNSPECIFIED"
+    },
     "pndApiOperation": {
       "type": "string",
       "enum": [
@@ -2889,7 +2966,7 @@
         }
       },
       "additionalProperties": {},
-      "description": "`Any` contains an arbitrary serialized protocol buffer message along with a\nURL that describes the type of the serialized message.\n\nProtobuf library provides support to pack/unpack Any values in the form\nof utility functions or additional generated methods of the Any type.\n\nExample 1: Pack and unpack a message in C++.\n\n    Foo foo = ...;\n    Any any;\n    any.PackFrom(foo);\n    ...\n    if (any.UnpackTo(\u0026foo)) {\n      ...\n    }\n\nExample 2: Pack and unpack a message in Java.\n\n    Foo foo = ...;\n    Any any = Any.pack(foo);\n    ...\n    if (any.is(Foo.class)) {\n      foo = any.unpack(Foo.class);\n    }\n\n Example 3: Pack and unpack a message in Python.\n\n    foo = Foo(...)\n    any = Any()\n    any.Pack(foo)\n    ...\n    if any.Is(Foo.DESCRIPTOR):\n      any.Unpack(foo)\n      ...\n\n Example 4: Pack and unpack a message in Go\n\n     foo := \u0026pb.Foo{...}\n     any, err := anypb.New(foo)\n     if err != nil {\n       ...\n     }\n     ...\n     foo := \u0026pb.Foo{}\n     if err := any.UnmarshalTo(foo); err != nil {\n       ...\n     }\n\nThe pack methods provided by protobuf library will by default use\n'type.googleapis.com/full.type.name' as the type URL and the unpack\nmethods only use the fully qualified type name after the last '/'\nin the type URL, for example \"foo.bar.com/x/y.z\" will yield type\nname \"y.z\".\n\n\nJSON\n====\nThe JSON representation of an `Any` value uses the regular\nrepresentation of the deserialized, embedded message, with an\nadditional field `@type` which contains the type URL. Example:\n\n    package google.profile;\n    message Person {\n      string first_name = 1;\n      string last_name = 2;\n    }\n\n    {\n      \"@type\": \"type.googleapis.com/google.profile.Person\",\n      \"firstName\": \u003cstring\u003e,\n      \"lastName\": \u003cstring\u003e\n    }\n\nIf the embedded message type is well-known and has a custom JSON\nrepresentation, that representation will be embedded adding a field\n`value` which holds the custom JSON in addition to the `@type`\nfield. Example (for message [google.protobuf.Duration][]):\n\n    {\n      \"@type\": \"type.googleapis.com/google.protobuf.Duration\",\n      \"value\": \"1.212s\"\n    }"
+      "description": "`Any` contains an arbitrary serialized protocol buffer message along with a\nURL that describes the type of the serialized message.\n\nProtobuf library provides support to pack/unpack Any values in the form\nof utility functions or additional generated methods of the Any type.\n\nExample 1: Pack and unpack a message in C++.\n\n    Foo foo = ...;\n    Any any;\n    any.PackFrom(foo);\n    ...\n    if (any.UnpackTo(\u0026foo)) {\n      ...\n    }\n\nExample 2: Pack and unpack a message in Java.\n\n    Foo foo = ...;\n    Any any = Any.pack(foo);\n    ...\n    if (any.is(Foo.class)) {\n      foo = any.unpack(Foo.class);\n    }\n\nExample 3: Pack and unpack a message in Python.\n\n    foo = Foo(...)\n    any = Any()\n    any.Pack(foo)\n    ...\n    if any.Is(Foo.DESCRIPTOR):\n      any.Unpack(foo)\n      ...\n\nExample 4: Pack and unpack a message in Go\n\n     foo := \u0026pb.Foo{...}\n     any, err := anypb.New(foo)\n     if err != nil {\n       ...\n     }\n     ...\n     foo := \u0026pb.Foo{}\n     if err := any.UnmarshalTo(foo); err != nil {\n       ...\n     }\n\nThe pack methods provided by protobuf library will by default use\n'type.googleapis.com/full.type.name' as the type URL and the unpack\nmethods only use the fully qualified type name after the last '/'\nin the type URL, for example \"foo.bar.com/x/y.z\" will yield type\nname \"y.z\".\n\n\nJSON\n\nThe JSON representation of an `Any` value uses the regular\nrepresentation of the deserialized, embedded message, with an\nadditional field `@type` which contains the type URL. Example:\n\n    package google.profile;\n    message Person {\n      string first_name = 1;\n      string last_name = 2;\n    }\n\n    {\n      \"@type\": \"type.googleapis.com/google.profile.Person\",\n      \"firstName\": \u003cstring\u003e,\n      \"lastName\": \u003cstring\u003e\n    }\n\nIf the embedded message type is well-known and has a custom JSON\nrepresentation, that representation will be embedded adding a field\n`value` which holds the custom JSON in addition to the `@type`\nfield. Example (for message [google.protobuf.Duration][]):\n\n    {\n      \"@type\": \"type.googleapis.com/google.protobuf.Duration\",\n      \"value\": \"1.212s\"\n    }"
     },
     "rbacCreateRolesRequest": {
       "type": "object",
@@ -3182,6 +3259,99 @@
         }
       }
     },
+    "topologyAddLinkRequest": {
+      "type": "object",
+      "properties": {
+        "timestamp": {
+          "type": "string",
+          "format": "int64"
+        },
+        "link": {
+          "$ref": "#/definitions/topologyLink"
+        }
+      },
+      "title": "AddLink"
+    },
+    "topologyAddLinkResponse": {
+      "type": "object",
+      "properties": {
+        "timestamp": {
+          "type": "string",
+          "format": "int64"
+        },
+        "status": {
+          "$ref": "#/definitions/gosdntopologyStatus"
+        }
+      }
+    },
+    "topologyGetTopologyResponse": {
+      "type": "object",
+      "properties": {
+        "timestamp": {
+          "type": "string",
+          "format": "int64"
+        },
+        "status": {
+          "$ref": "#/definitions/gosdntopologyStatus"
+        },
+        "toplogy": {
+          "$ref": "#/definitions/topologyTopology"
+        }
+      }
+    },
+    "topologyLink": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        },
+        "sourceNode": {
+          "$ref": "#/definitions/topologyNode"
+        },
+        "targetNode": {
+          "$ref": "#/definitions/topologyNode"
+        },
+        "sourcePort": {
+          "$ref": "#/definitions/topologyPort"
+        },
+        "targetPort": {
+          "$ref": "#/definitions/topologyPort"
+        }
+      }
+    },
+    "topologyNode": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        }
+      }
+    },
+    "topologyPort": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        }
+      }
+    },
+    "topologyTopology": {
+      "type": "object",
+      "properties": {
+        "links": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/topologyLink"
+          }
+        }
+      }
+    },
     "transportGnmiTransportOption": {
       "type": "object",
       "properties": {
diff --git a/api/proto/buf.lock b/api/proto/buf.lock
index 7cb8f4758341bcff9abc299cf94495c376ebc368..609ccb0d975e8a80f3bd3e50c1df57a05dfc26b0 100644
--- a/api/proto/buf.lock
+++ b/api/proto/buf.lock
@@ -4,14 +4,8 @@ deps:
   - remote: buf.build
     owner: googleapis
     repository: googleapis
-    branch: main
-    commit: ebc3077fbae84b63a71f742dd72f7101
-    digest: b1-gGcU24imC8L2I93v0LRssRMDGX0Fw9yrqgptNqVsTAU=
-    create_time: 2022-05-12T15:09:22.684487Z
+    commit: 7529bb85c9cd4c489dba05e04769c547
   - remote: buf.build
     owner: grpc-ecosystem
     repository: grpc-gateway
-    branch: main
-    commit: febd9e8be39b4f4b878b9c64bcc203fd
-    digest: b1-K5jSHBrJ24jZXRgQgkmphZuP-cAL2b90ssKrgvDK2hU=
-    create_time: 2022-04-17T01:28:07.574665Z
+    commit: 00116f302b12478b85deb33b734e026c
diff --git a/api/proto/gosdn/topology/link.proto b/api/proto/gosdn/topology/link.proto
new file mode 100644
index 0000000000000000000000000000000000000000..70aee027733179856e95c9fc92c51670126d51fe
--- /dev/null
+++ b/api/proto/gosdn/topology/link.proto
@@ -0,0 +1,21 @@
+syntax = "proto3";
+
+package gosdn.topology;
+
+import "google/api/annotations.proto";
+import "google/protobuf/descriptor.proto";
+import "protoc-gen-openapiv2/options/annotations.proto";
+
+import "gosdn/topology/node.proto";
+import "gosdn/topology/port.proto";
+
+option go_package = "code.fbi.h-da.de/danet/gosdn/api/go/gosdn/topology";
+
+message Link {
+    string id = 1;
+    string name = 2;
+    Node sourceNode = 3;
+    Node targetNode = 4;
+    Port sourcePort = 5;
+    Port targetPort = 6;
+}
diff --git a/api/proto/gosdn/topology/node.proto b/api/proto/gosdn/topology/node.proto
new file mode 100644
index 0000000000000000000000000000000000000000..ca06fab019f59cd8584b2dbe4f6b4d40b34dd267
--- /dev/null
+++ b/api/proto/gosdn/topology/node.proto
@@ -0,0 +1,15 @@
+syntax = "proto3";
+
+package gosdn.topology;
+
+import "google/api/annotations.proto";
+import "google/protobuf/descriptor.proto";
+import "protoc-gen-openapiv2/options/annotations.proto";
+
+
+option go_package = "code.fbi.h-da.de/danet/gosdn/api/go/gosdn/topology";
+
+message Node {
+    string id = 1;
+    string name = 2;
+}
diff --git a/api/proto/gosdn/topology/port.proto b/api/proto/gosdn/topology/port.proto
new file mode 100644
index 0000000000000000000000000000000000000000..5124283b92784a55ddcf709f0548827edff4b4b1
--- /dev/null
+++ b/api/proto/gosdn/topology/port.proto
@@ -0,0 +1,14 @@
+syntax = "proto3";
+
+package gosdn.topology;
+
+import "google/api/annotations.proto";
+import "google/protobuf/descriptor.proto";
+import "protoc-gen-openapiv2/options/annotations.proto";
+
+
+option go_package = "code.fbi.h-da.de/danet/gosdn/api/go/gosdn/topology";
+
+message Port {
+    string id = 1;
+}
diff --git a/api/proto/gosdn/topology/topology.proto b/api/proto/gosdn/topology/topology.proto
new file mode 100644
index 0000000000000000000000000000000000000000..d4a71d696d68bca0f5190152043e0afae64bea93
--- /dev/null
+++ b/api/proto/gosdn/topology/topology.proto
@@ -0,0 +1,134 @@
+syntax = "proto3";
+
+package gosdn.topology;
+
+import "google/api/annotations.proto";
+import "google/protobuf/descriptor.proto";
+import "protoc-gen-openapiv2/options/annotations.proto";
+
+import "gosdn/topology/link.proto";
+
+
+option go_package = "code.fbi.h-da.de/danet/gosdn/api/go/gosdn/topology";
+
+service TopologyService {
+        // Creates roles, requires login beforehand.
+    // Requires highest permissions.
+    rpc AddLink(AddLinkRequest) returns (AddLinkResponse) {
+        option (google.api.http) = {
+            post: "/topology/create"
+            body: "*"
+        };
+    }
+
+    // Requests one role with its permissions, requires login beforehand.
+    // Requires highest permissions.
+    // rpc GetRole(GetRoleRequest) returns (GetRoleResponse) {
+    //     option (google.api.http) = {
+    //         get: "/roles/get"
+    //     };
+    // }
+
+    // Requests all roles with their permissions, requires login beforehand.
+    // Requires highest permissions.
+    rpc GetTopology(GetTopologyRequest) returns (GetTopologyResponse) {
+        option (google.api.http) = {
+            get: "/topology"
+        };
+    }
+
+    // // Updates roles by setting the provided permissions, requires login beforehand.
+    // // Requires highest permissions.
+    // rpc UpdateLink(UpdateRolesRequest) returns (UpdateRolesResponse) {
+    //     option (google.api.http) = {
+    //         post: "/topology/update"
+    //         body: "*"
+    //     };
+    // }
+
+    // // Deletes roles with their permissions, requires login beforehand.
+    // // Requires highest permissions.
+    // rpc DeleteLink(DeleteRolesRequest) returns (DeleteRolesResponse) {
+    //     option (google.api.http) = {
+    //         delete: "/topology/delete"
+    //     };
+    // }
+}
+
+enum Status {
+    STATUS_UNSPECIFIED = 0;
+    STATUS_OK = 1;
+    STATUS_ERROR = 2;
+}
+
+message Topology {
+    repeated Link links = 1;
+}
+
+// AddLink
+message AddLinkRequest {
+    int64 timestamp = 1;
+    Link link = 2;
+}
+
+message AddLinkResponse {
+    int64 timestamp = 1;
+    Status status = 2;
+}
+
+// // GetRole
+// message GetRoleRequest {
+//     int64 timestamp = 1;
+//     string role_name = 2;
+// }
+
+// message GetRoleResponse {
+//     int64 timestamp = 1;
+//     Status status = 2;
+//     Role role = 3;
+// }
+
+// GetTopology
+message GetTopologyRequest {
+    int64 timestamp = 1;
+}
+
+message GetTopologyResponse {
+    int64 timestamp = 1;
+    Status status = 2;
+    Topology toplogy = 3;
+}
+
+// // UpdateRoles
+// message UpdateRolesRequest {
+//     int64 timestamp = 1;
+//     repeated Role roles = 2;
+// }
+
+// message UpdateRolesResponse {
+//     int64 timestamp = 1;
+//     Status status = 2;
+// }
+
+// // DeletePermissionsForRole
+// message DeletePermissionsForRoleRequest {
+//     int64 timestamp = 1;
+//     string role_name = 2;
+//     repeated string permissions_to_delete = 3;
+// }
+
+// message DeletePermissionsForRoleResponse {
+//     int64 timestamp = 1;
+//     Status status = 2;
+// }
+
+// // DeleteRoles
+// message DeleteRolesRequest {
+//     int64 timestamp = 1;
+//     repeated string role_name = 2;
+// }
+
+// message DeleteRolesResponse {
+//     int64 timestamp = 1;
+//     Status status = 2;
+// }