diff --git a/doc/guides/howto/flow_bifurcation.rst b/doc/guides/howto/flow_bifurcation.rst
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+..  BSD LICENSE
+    Copyright(c) 2016 Intel Corporation. All rights reserved.
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
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+
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+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+
+
+Flow bifurcation guide
+======================
+
+Flow bifurcation is a mechanism which depends the advanced Ethernet device to
+split traffic between Linux user space and kernel space. Because it is hardware
+assisted design, this approach can provide the line rate processing capability.
+Other than KNI, the SW is just required to device configuration, no need to
+take care of the packet movement during the traffic split. This can get more
+performance with less CPU overhead.
+
+The Flow bifurcation takes advantage of Ethernet device feature to split the
+incoming data traffic to user space application (Such as DPDK application)
+and/or kernel space program (Linux kernel stack). It can direct some traffic
+(e.g data plane traffic) to DPDK, while direct some other traffic (e.g control
+plane traffic) to the traditional Linux networking stack.
+
+There are a number of technical options to achieve this. A typical example is
+to combine the technology of SR-IOV and packet classification filtering.
+
+SR-IOV is a PCI standard that allows the same physical adapter to split as
+multiple virtual functions. Each virtual function has separated queues with
+physical function. Traffic with a virtual function's destination MAC address
+from network adapter will be directed to it. In a sense, SR-IOV has the
+capability on queue division.
+
+Packet classification filtering is the hardware capability available on most
+network adapters. Filters can be configured to direct specific flows to a given
+receive queue by hardware. Different NIC may have different filter types to
+direct flow to a Virtual Function or a queue belong to it.
+
+Linux network can receive the specific traffic through kernel driver, while
+DPDK can receive the specific traffic bypassing the Linux kernel by using
+drivers like VFIO or DPDK igb_uio module.
+
+.. _figure_flow_bifurcation_overview:
+
+.. figure:: img/flow_bifurcation_overview.*
+
+   Flow Bifucation Overview
+
+
+Use Flow bifurcation on IXGBE in Linux
+--------------------------------------
+
+On Intel 82599 10 Gigabit Ethernet Controller series NICs, Flow bifurcation
+can be achieved by SR-IOV and flow director technologies. So the traffic can
+be directed to queues by flow director capability, typically by matching 5-tuple
+of UDP/TCP packets.
+
+The step procedure is as following:
+
+#.  Boot system without iommu, or with ``iommu=pt``.
+
+#.  Create Virtual Functions:
+
+    .. code-block:: console
+
+        echo 2 > /sys/bus/pci/devices/0000:01:00.0/sriov_numvfs
+
+#.  Enable and set flow filters:
+
+    .. code-block:: console
+
+        ethtool -K eth1 ntuple on
+        ethtool -N eth1 flow-type udp4 src-ip 192.0.2.2 dst-ip 198.51.100.2 \
+		        action $queue_index_in_VF0
+        ethtool -N eth1 flow-type udp4 src-ip 198.51.100.2 dst-ip 192.0.2.2 \
+                action $queue_index_in_VF1
+
+    where:
+
+        *   $queue_index_in_PF: [queue index]
+
+        *   $queue_index_in_VFn: Bits 39:32 of the variable defines VF id + 1; lower 32 bits indicates the queue index of VF.
+
+            *   $queue_index_in_VF0 = (0x1 & 0xFF) << 32 + [queue index];
+
+            *   $queue_index_in_VF1 = (0x2 & 0xFF) << 32 + [queue index];
+
+        .. _figure_ixgbe_bifu_queue_idx:
+
+        .. figure:: img/ixgbe_bifu_queue_idx.*
+
+#.  Compile the DPDK and insert igb_uio or probe vfio-pci kernel modules as normal.
+
+#.  Bind virtual function:
+
+    .. code-block:: console
+
+        modprobe vfio-pci
+        dpdk_nic_bind.py -b vfio-pci 01:10.0
+        dpdk_nic_bind.py -b vfio-pci 01:10.1
+
+#.  run DPDK application on VFs:
+
+    .. code-block:: console
+
+        testpmd -c 0xff -n 4 -- -i -w 01:10.0 -w 01:10.1 --forward-mode=mac
+
+In this example, traffic matching the rules will go through VF by matching the
+filter rule. All other traffic which mismatching the rules, will go through
+the default queue or scaling on queues in PF. That is to say UDP packets with
+those IP source and destination addresses will go through the DPDK. All other
+traffic, with different hosts or different protocols, will go through the Linux
+networking stack.
+
+.. note::
+
+    *   The above steps work on the Linux kernel v4.2.
+
+    *   The Flow bifurcation is implemented in Linux kernel and ixgbe kernel driver by following patches:
+
+        *   `ethtool: Add helper routines to pass vf to rx_flow_spec <https://patchwork.ozlabs.org/patch/476511/>`_
+
+        *   `ixgbe: Allow flow director to use entire queue space <https://patchwork.ozlabs.org/patch/476516/>`_
+
+    *   Ethtool's version used in this example is 3.18.
+
+
+Use Flow bifurcation on I40E in Linux
+-------------------------------------
+
+On Intel X710/XL710 series Ethernet Controllers, Flow bifurcation can be achieved
+by SR-IOV , cloud filter and L3 VEB switch. So the traffic can be directed to queues by
+cloud filter and L3 VEB switch's matching rule.
+
+*   L3 VEB filter for non-tunnelled packets. It can direct a packet just by the
+    Destination IP address to a queue in a VF.
+
+*   Cloud filters for tunnelled packets have following types.
+
+    *   Inner mac
+
+    *   Inner mac + VNI
+
+    *   Outer mac + Inner mac + VNI
+
+    *   Inner mac + Inner vlan + VNI
+
+    *   Inner mac + Inner vlan
+
+The step procedure is as following:
+
+#.  Boot system without iommu, or with ``iommu=pt``.
+
+#.  Build and insert i40e.ko module.
+
+#.  Create Virtual Functions:
+
+    .. code-block:: console
+
+        echo 2 > /sys/bus/pci/devices/0000:01:00.0/sriov_numvfs
+
+#.  Add udp port offload to NIC if using cloud filter:
+
+    .. code-block:: console
+
+        ip li add vxlan0 type vxlan id 42 group 239.1.1.1 local 10.16.43.214 dev <dev_name>
+        ifconfig vxlan0 up
+        ip -d li show vxlan0
+
+    .. note::
+
+        Print ``add vxlan port 8472, index 0 success`` can be found in system log.
+
+#.  Enable and set flow filters:
+
+    *   L3 VEB filter, route whose dest IP = 192.168.50.108 to VF 0's queue 2.
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ip4 dst-ip 192.168.50.108 \
+                user-def 0xffffffff00000000 action 2 loc 8
+
+    *   Inner mac, route whose inner dest mac = 0:0:0:0:9:0 to PF's queue 6.
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ether dst 00:00:00:00:00:00 \
+                m ff:ff:ff:ff:ff:ff src 00:00:00:00:09:00 m 00:00:00:00:00:00 \
+                user-def 0xffffffff00000003 action 6 loc 1
+
+    *   Inner mac + VNI, route whose inner dest mac = 0:0:0:0:9:0 and VNI = 8 to PF's queue 4.
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ether dst 00:00:00:00:00:00 \
+                m ff:ff:ff:ff:ff:ff src 00:00:00:00:09:00 m 00:00:00:00:00:00 \
+                user-def 0x800000003 action 4 loc 4
+
+    *   Outer mac + Inner mac + VNI, route whose outer mac= 68:05:ca:24:03:8b, inner dest mac
+        = c2:1a:e1:53:bc:57, and VNI = 8 to PF's  queue 2.
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ether dst 68:05:ca:24:03:8b \
+                m 00:00:00:00:00:00 src c2:1a:e1:53:bc:57 m 00:00:00:00:00:00 \
+                user-def 0x800000003 action 2 loc 2
+
+    *   Inner mac + Inner vlan + VNI, route whose inner dest mac = 00:00:00:00:20:00,
+        inner vlan = 10, and VNI = 8 to VF 0's queue 1
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ether dst 00:00:00:00:01:00 \
+                m ff:ff:ff:ff:ff:ff src 00:00:00:00:20:00 m 00:00:00:00:00:00 \
+                vlan 10 user-def 0x800000000 action 1 loc 5
+
+    *   Inner mac + Inner vlan, route whose inner dest mac = 00:00:00:00:20:00,
+        and inner vlan = 10 to VF 0's queue 1
+
+    .. code-block:: console
+
+        ethtool -N <dev_name> flow-type ether dst 00:00:00:00:01:00 \
+                m ff:ff:ff:ff:ff:ff src 00:00:00:00:20:00 m 00:00:00:00:00:00 \
+                vlan 10 user-def 0xffffffff00000000 action 1 loc 5
+
+    .. note::
+
+        *   If the upper 32 bits of 'user-def' are 0xffffffff, then the filter can
+            be used for programming an L3 VEB filter, otherwise the upper 32 bits
+            of 'user-def' can carry the tenant ID/VNI if specified/required.
+
+        *   Cloud filters can be defined with inner mac, outer mac, inner ip, inner vlan
+            and VNI as part of the cloud tuple. It is always the Destination (not source)
+            mac/ip that these filters, filter on. For all these examples dst and src mac
+            address fields are overloaded dst == outer, src == inner.
+
+        *   Filter will be directing a packet who matching the rule to a vf id
+            specified in the lower 32 bit of user-def to queue specified by 'action'.
+
+        *   If the vf id specified by the lower 32 bit of user-def is greater than
+            or equal to max_vfs, then the filter is for the PF queues.
+
+#.  Compile the DPDK and insert igb_uio or probe vfio-pci kernel modules as normal.
+
+#.  Bind virtual function:
+
+    .. code-block:: console
+
+        modprobe vfio-pci
+        dpdk_nic_bind.py -b vfio-pci 01:10.0
+        dpdk_nic_bind.py -b vfio-pci 01:10.1
+
+#.  run DPDK application on VFs:
+
+    .. code-block:: console
+
+        testpmd -c 0xff -n 4 -- -i -w 01:10.0 -w 01:10.1 --forward-mode=mac
+
+.. note::
+
+    *   The above steps work on the i40e Linux kernel driver v1.5.16.
+
+    *   Ethtool's version used in this example is 3.18. And the mask ``ff`` means not involved, while ``00`` or don't set mask means involved.
+
+    *   For more details of the configuration, can refer to the `cloud filter test plan <http://dpdk.org/browse/tools/dts/tree/test_plans/cloud_filter_test_plan.rst>`_
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diff --git a/doc/guides/howto/index.rst b/doc/guides/howto/index.rst
index 4b97a32..a912d82 100644
--- a/doc/guides/howto/index.rst
+++ b/doc/guides/howto/index.rst
@@ -36,3 +36,4 @@ How To User Guide
     :numbered:
 
     lm_bond_virtio_sriov
+    flow_bifurcation
