[6.0] 270706a7b improve documentation on backend timeout defaults

[Dridi Boukelmoune]

commit 270706a7baf34e06b31483f5d04cad71374152d6
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Mon Aug 27 15:06:27 2018 +0200

    improve documentation on backend timeout defaults

diff --git a/doc/sphinx/reference/vcl.rst b/doc/sphinx/reference/vcl.rst
index 913775778..d720dbc95 100644
--- a/doc/sphinx/reference/vcl.rst
+++ b/doc/sphinx/reference/vcl.rst
@@ -201,6 +201,8 @@ Example::
     }
 
 
+.. _ref_backend_def:
+
 Backend definition
 ------------------
 
@@ -239,12 +241,18 @@ parameters. The following attributes are available:
   ``.connect_timeout``
     Timeout for connections.
 
+    Default: :ref:`ref_param_connect_timeout` parameter.
+
   ``.first_byte_timeout``
     Timeout for first byte.
 
+    Default: :ref:`ref_param_first_byte_timeout` parameter.
+
   ``.between_bytes_timeout``
     Timeout between bytes.
 
+    Default: :ref:`ref_param_between_bytes_timeout` parameter.
+
   ``.probe``
     Attach a probe to the backend. See `Probes`_
 
diff --git a/doc/sphinx/reference/vcl_var.rst b/doc/sphinx/reference/vcl_var.rst
index 2bb40b214..1d629ae91 100644
--- a/doc/sphinx/reference/vcl_var.rst
+++ b/doc/sphinx/reference/vcl_var.rst
@@ -585,6 +585,12 @@ bereq.connect_timeout
 
 	Writable from: vcl_pipe, backend
 
+	Default:
+
+	* :ref:`ref_backend_def` ``.connect_timeout`` attribute, which
+	   defaults to
+	* :ref:`ref_param_connect_timeout` parameter.
+
 	The time in seconds to wait for a backend connection to be
 	established.
 
@@ -597,6 +603,12 @@ bereq.first_byte_timeout
 
 	Writable from: backend
 
+	Default:
+
+	* :ref:`ref_backend_def` ``.first_byte_timeout`` attribute,
+	   which defaults to
+	* :ref:`ref_param_first_byte_timeout` parameter.
+
 	The time in seconds to wait getting the first byte back
 	from the backend.  Not available in pipe mode.
 
@@ -609,6 +621,12 @@ bereq.between_bytes_timeout
 
 	Writable from: backend
 
+	Default:
+
+	* :ref:`ref_backend_def` ``.between_bytes_timeout`` backend
+	   attribute, which defaults to
+	* :ref:`ref_param_between_bytes_timeout` parameter.
+
 	The time in seconds to wait between each received byte from the
 	backend.  Not available in pipe mode.