+3-Node Xeon Haswell (3n-hsw)
+----------------------------
+
+Three 3n-hsw testbeds are in operation in FD.io labs. Each 3n-hsw
+testbed is built with three Cisco UCS-c240m3 servers, each in turn
+equipped with two Intel Xeon Haswell-SP E5-2699v3 processors (45 MB
+Cache, 2.3 GHz, 18 cores). 3n-hsw physical topology is shown below.
+
+.. only:: latex
+
+ .. raw:: latex
+
+ \begin{figure}[H]
+ \centering
+ \graphicspath{{../_tmp/src/introduction/}}
+ \includegraphics[width=0.90\textwidth]{testbed-3n-hsw}
+ \label{fig:testbed-3n-hsw}
+ \end{figure}
+
+.. only:: html
+
+ .. figure:: testbed-3n-hsw.svg
+ :alt: testbed-3n-hsw
+ :align: center
+
+SUT1 and SUT2 servers are populated with the following NIC models:
+
+#. NIC-1: VIC 1385 2p40GE Cisco.
+#. NIC-2: NIC x520 2p10GE Intel.
+#. NIC-3: empty.
+#. NIC-4: NIC xl710-QDA2 2p40GE Intel.
+#. NIC-5: NIC x710-DA2 2p10GE Intel.
+#. NIC-6: QAT 8950 50G (Walnut Hill) Intel.
+
+TG servers run T-Rex application and are populated with the following
+NIC models:
+
+#. NIC-1: NIC xl710-QDA2 2p40GE Intel.
+#. NIC-2: NIC x710-DA2 2p10GE Intel.
+#. NIC-3: empty.
+#. NIC-4: NIC xl710-QDA2 2p40GE Intel.
+#. NIC-5: NIC x710-DA2 2p10GE Intel.
+#. NIC-6: NIC x710-DA2 2p10GE Intel. (For self-tests.)
+
+All Intel Xeon Haswell servers run with Intel Hyper-Threading disabled,
+making the number of logical cores exposed to Linux match the number of
+18 physical cores per processor socket.
+
+2-Node Atom Denverton (2n-dnv)
+------------------------------
+
+2n-dnv testbed is built with: i) one Intel S2600WFT 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). 2n-dnv physical topology is shown below.
+
+.. only:: latex
+
+ .. raw:: latex
+
+ \begin{figure}[H]
+ \centering
+ \graphicspath{{../_tmp/src/introduction/}}
+ \includegraphics[width=0.90\textwidth]{testbed-2n-dnv}
+ \label{fig:testbed-2n-dnv}
+ \end{figure}
+
+.. only:: html
+
+ .. figure:: testbed-2n-dnv.svg
+ :alt: testbed-2n-dnv
+ :align: center
+
+SUT server have four internal 10G NIC port:
+
+#. 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.
+
+TG servers run T-Rex application and are populated with the following
+NIC models:
+
+#. NIC-1: x710-DA4 4p10GE Intel.
+
+3-Node ARM TaiShan (3n-tsh)
+---------------------------
+
+One 3n-tsh 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 Huawei
+TaiShan 2280 server acting as SUT and equipped with one hip07-d05
+processor (64* ARM Cortex-A72). 3n-tsh physical topology is shown below.
+
+.. only:: latex
+
+ .. raw:: latex
+
+ \begin{figure}[H]
+ \centering
+ \graphicspath{{../_tmp/src/introduction/}}
+ \includegraphics[width=0.90\textwidth]{testbed-3n-tsh}
+ \label{fig:testbed-3n-tsh}
+ \end{figure}
+
+.. only:: html
+
+ .. figure:: testbed-3n-tsh.svg
+ :alt: testbed-3n-tsh
+ :align: center
+
+SUT1 and SUT2 servers are populated with the following NIC models:
+
+#. NIC-1: connectx4 2p25GE Mellanox.
+#. NIC-2: x520 2p10GE Intel.
+
+TG servers run T-Rex application and are populated with the following
+NIC models:
+
+#. NIC-1: x710-DA4 4p10GE Intel.
+#. NIC-2: xxv710-DA2 2p25GE Intel.