diff --git a/oxi/conf.py b/oxi/conf.py
index cd89be4..cc2a9ff 100644
--- a/oxi/conf.py
+++ b/oxi/conf.py
@@ -60,7 +60,7 @@ class NodeConfig:
         self._device: type[BaseDevice] = device_registry.get(self._model.lower())
         if self._device is None:
             raise ValueError(f"Device model '{self._model}' not found in registry")
-        self._parsed_data = self._device(self.text).parse()
+        self._parsed_data = self._device(self.text, name=self._full_name).parse()
 
     @cached_property
     def _response(self):
diff --git a/oxi/interfaces/base.py b/oxi/interfaces/base.py
index bdd4308..62610ee 100644
--- a/oxi/interfaces/base.py
+++ b/oxi/interfaces/base.py
@@ -1,6 +1,7 @@
 from abc import ABC, abstractmethod
 from pathlib import Path
 from ttp import ttp
+from oxi.exception import OxiAPIError
 from oxi.interfaces.contract import Device
 import xml.etree.ElementTree as ET
 from oxi.interfaces.contract import Interfaces, System, Vlans
@@ -10,8 +11,9 @@ class BaseDevice(ABC):
     _REQUIRED_SECTIONS: frozenset[str] = frozenset({"system", "interfaces"})
     _OPTIONAL_SECTIONS: frozenset[str] = frozenset({"vlans"})
 
-    def __init__(self, config: str):
+    def __init__(self, config: str, name: str | None = None):
         self.config: str = config
+        self.name = name
 
         self._loaded_template = self._load_template()
         self._declared_sections = None
@@ -69,6 +71,13 @@ class BaseDevice(ABC):
         return self.raw.get("system", None)
 
     def _validate_contract(self) -> dict:
+        if self.raw is None:
+            msg = (
+                f"Node {self.name} not found"
+                if self.name
+                else "Node not found"
+            )
+            raise OxiAPIError(msg, status_code=404)
         system_data = self.system()
         interfaces_data = self.interfaces() or []
         result = {
@@ -114,6 +123,13 @@ class BaseDevice(ABC):
 
     def _run_ttp(self) -> dict:
         """Основной парсер"""
+        pattern = """node not {{found}}"""
+        parser = ttp(data=self.config, template=pattern)
+        parser.parse()
+        res = parser.result()
+        if res[0][0]:
+            # raise OxiAPIError(f"Node {self.name} not found", status_code=404)
+            return None
         p = ttp(data=self.config, template=self._loaded_template)
         p.parse()
         raw: dict = p.result()[0][0]
diff --git a/oxi/interfaces/models/eltex.py b/oxi/interfaces/models/eltex.py
index 1d9f3de..f4a08bf 100644
--- a/oxi/interfaces/models/eltex.py
+++ b/oxi/interfaces/models/eltex.py
@@ -37,7 +37,7 @@ class Eltex(BaseDevice):
 
 
 if __name__ == "__main__":
-    with open("./test6.txt") as file:
+    with open("./test_not_found.txt") as file:
         data = file.read()
     eltex = Eltex(data)
     print(eltex.parse())