T7743: PPPoE-server add option for VPP control plane

Enable PPPoE control-plane integration with VPP, add configurable
option:
 - set service pppoe-server interface eth1 vpp-cp

```
interface=eth1,vpp-cp=true
```

1 files changed, 14 insertions, 0 deletions

diff --git a/smoketest/scripts/cli/test_service_pppoe-server.py b/smoketest/scripts/cli/test_service_pppoe-server.py
index 7a43acfca..609fb7aaa 100755
--- a/smoketest/scripts/cli/test_service_pppoe-server.py
+++ b/smoketest/scripts/cli/test_service_pppoe-server.py
@@ -211,6 +211,20 @@ class TestServicePPPoEServer(BasicAccelPPPTest.TestCase):
         self.assertIn('accept-any-service=1', config)
         self.assertIn('accept-blank-service=1', config)
 
+    def test_accel_vpp_cp(self):
+        interface_vpp = f'{interface},vpp-cp=true'
+
+        self.basic_config()
+        self.set(['interface', interface, 'vpp-cp'])
+        self.cli_commit()
+
+        # Validate configuration values
+        conf = ConfigParser(allow_no_value=True, delimiters='=')
+        conf.read(self._config_file)
+
+        # Validate configuration
+        self.assertEqual(conf['pppoe']['interface'], interface_vpp)
+
 
 if __name__ == '__main__':
     unittest.main(verbosity=2)