diff --git a/test/asf/vpp_session_sdl.py b/test/asf/vpp_session_sdl.py
new file mode 100644
index 0000000..b10c11d
--- /dev/null
+++ b/test/asf/vpp_session_sdl.py
@@ -0,0 +1,75 @@
+from ipaddress import IPv4Network
+
+from vpp_object import VppObject
+from vpp_papi import VppEnum
+from vpp_ip import INVALID_INDEX
+from vpp_papi_provider import UnexpectedApiReturnValueError
+
+
+class SessionSdl:
+    """Session SDL"""
+
+    def __init__(
+        self,
+        lcl,
+        action_index,
+        tag,
+    ):
+
+        self.action_index = action_index
+        self.lcl = lcl
+        self.tag = tag
+
+    def encode(self):
+        return {
+            "lcl": self.lcl,
+            "action_index": self.action_index,
+            "tag": self.tag,
+        }
+
+
+class VppSessionSdl(VppObject):
+    """VPP Session SDL"""
+
+    def __init__(self, test, rules, is_add, appns_index):
+        self._test = test
+        self._rules = rules
+        self.is_add = is_add
+        self.appns_index = appns_index
+
+    @property
+    def rules(self):
+        return self._rules
+
+    @property
+    def count(self):
+        return len(self._rules)
+
+    def encode_rules(self):
+        rules = []
+        for rule in self._rules:
+            rules.append(rule.encode())
+        return rules
+
+    def add_vpp_config(self, expect_error=False):
+        try:
+            reply = self._test.vapi.session_sdl_add_del(
+                is_add=self.is_add,
+                appns_index=self.appns_index,
+                count=self.count,
+                r=self.encode_rules(),
+            )
+            self._test.registry.register(self, self._test.logger)
+            if expect_error:
+                self._test.fail("Unexpected api reply")
+            return self
+        except UnexpectedApiReturnValueError:
+            if not expect_error:
+                self._test.fail("Unexpected api reply")
+        return None
+
+    def query_vpp_config(self):
+        pass
+
+    def remove_vpp_config(self, expect_error=False):
+        pass