-#. NIC-1: x710-DA4 4p10GE Intel.
-#. NIC-2: xxv710-DA2 2p25GE Intel.
-#. NIC-3: mcx556a-edat ConnectX5 2p100GE Mellanox. (Not used yet.)
-#. NIC-4: empty, future expansion.
-#. NIC-5: empty, future expansion.
-#. NIC-6: empty, future expansion.
+#. P-1: x553 copper port.
+#. P-2: x553 copper port.
+#. P-3: x553 fiber port.
+#. P-4: x553 fiber port.
+
+TG server run T-Rex software traffic generator and are populated with the
+following NIC models:
+
+#. NIC-1: x550-T2 2p10GE Intel.
+#. NIC-2: x550-T2 2p10GE Intel.
+#. NIC-3: x520-DA2 2p10GE Intel.
+#. NIC-4: x520-DA2 2p10GE Intel.
+
+The 2n-dnv testbed is in operation in Intel SH labs.
+
+3-Node Atom Denverton (3n-dnv)
+------------------------------
+
+One 3n-dnv testbed is built with: i) one SuperMicro SYS-7049GP-TRT
+server acting as TG and equipped with two Intel Xeon Skylake Platinum
+8180 processors (38.5 MB Cache, 2.50 GHz, 28 cores), and ii) one
+SuperMicro SYS-E300-9A server acting as SUT and equipped with one Intel
+Atom C3858 processor (12 MB Cache, 2.00 GHz, 12 cores). 3n-dnv physical
+topology is shown below.
+
+.. only:: latex
+
+ .. raw:: latex
+
+ \begin{figure}[H]
+ \centering
+ \graphicspath{{../_tmp/src/introduction/}}
+ \includegraphics[width=0.90\textwidth]{testbed-3n-dnv}
+ \label{fig:testbed-3n-dnv}
+ \end{figure}
+
+.. only:: html
+
+ .. figure:: testbed-3n-dnv.svg
+ :alt: testbed-3n-dnv
+ :align: center
+
+SUT1 and SUT2 servers are populated with the following NIC models:
+
+#. NIC-1: x553 2p10GE fiber Intel.
+#. NIC-2: x553 2p10GE copper Intel.