-.. include:: ../vpp_functional_tests/test_environment.rst
+Test Environment
+================
+
+FD.io CSIT NSH_SFC functional tests are executed in the same FD.io VIRL
+virtual environment as used CSIT VPP functional tests. See description
+in `VPP Functional Tests Environment
+<../vpp_functional_tests/test_environment.html>`_.