Initial commit of Sphinx docs

Change-Id: I9fca8fb98502dffc2555f9de7f507b6f006e0e77
Signed-off-by: John DeNisco <jdenisco@cisco.com>
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+.. _intcommands:
+
+Interface Commands
+==================
+
+.. toctree::
+
+.. _showintcommand:
+
+Show Interface
+==============
+Shows software interface information including counters and features
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    show interface [address|addr|features|feat] [<interface> [<interface> [..]]]
+
+Examples
+--------
+
+Example of how to show the interface counters:
+
+.. code-block:: console
+
+    vpp# show int
+                  Name               Idx       State          Counter          Count     
+    TenGigabitEthernet86/0/0          1         up       rx packets               6569213
+                                                         rx bytes              9928352943
+                                                         tx packets                 50384
+                                                         tx bytes                 3329279
+    TenGigabitEthernet86/0/1          2        down      
+    VirtualEthernet0/0/0              3         up       rx packets                 50384
+                                                         rx bytes                 3329279
+                                                         tx packets               6569213
+                                                         tx bytes              9928352943
+                                                         drops                       1498
+    local0                            0        down      
+
+Example of how to display the interface placement:
+
+.. code-block:: console
+
+    vpp# show interface rx-placement
+    Thread 1 (vpp_wk_0):
+      node dpdk-input:
+        GigabitEthernet7/0/0 queue 0 (polling)
+      node vhost-user-input:
+        VirtualEthernet0/0/12 queue 0 (polling)
+        VirtualEthernet0/0/12 queue 2 (polling)
+        VirtualEthernet0/0/13 queue 0 (polling)
+        VirtualEthernet0/0/13 queue 2 (polling)
+    Thread 2 (vpp_wk_1):
+      node dpdk-input:
+        GigabitEthernet7/0/1 queue 0 (polling)
+      node vhost-user-input:
+        VirtualEthernet0/0/12 queue 1 (polling)
+        VirtualEthernet0/0/12 queue 3 (polling)
+        VirtualEthernet0/0/13 queue 1 (polling)
+        VirtualEthernet0/0/13 queue 3 (polling)
+
+Clear Interfaces
+================
+Clear the statistics for all interfaces (statistics associated with the
+'*show interface*' command).
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    clear interfaces
+
+Example
+-------
+Example of how to clear the statistics for all interfaces:
+
+.. code-block:: console
+
+    vpp# clear interfaces
+
+Set Interface Mac Address
+=========================
+The '*set interface mac address* ' command allows to set MAC address of
+given interface. In case of NIC interfaces the one has to support MAC
+address change. A side effect of MAC address change are changes of MAC
+addresses in FIB tables (ipv4 and ipv6).
+
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    set interface mac address <interface> <mac-address>.
+
+Examples
+--------
+
+Examples of how to change MAC Address of interface:
+
+.. code-block:: console
+
+    vpp# set interface mac address GigabitEthernet0/8/0 aa:bb:cc:dd:ee:01
+    vpp# set interface mac address host-vpp0 aa:bb:cc:dd:ee:02
+    vpp# set interface mac address tap-0 aa:bb:cc:dd:ee:03
+    vpp# set interface mac address pg0 aa:bb:cc:dd:ee:04
+
+Set Interface Mtu
+=================
+
+.. toctree::
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    set interface mtu [packet|ip4|ip6|mpls] <value> <interface>.
+
+Set Interface Promiscuous
+=========================
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    set interface promiscuous [on|off] <interface>.
+
+.. _setintstate:
+
+Set Interface State
+===================
+This command is used to change the admin state (up/down) of an
+interface.
+
+If an interface is down, the optional '*punt*' flag can also be set. The
+'*punt*' flag implies the interface is disabled for forwarding but punt
+all traffic to slow-path. Use the '*enable*' flag to clear '*punt*' flag
+(interface is still down).
+
+Summary/Usage
+-------------
+
+.. code-block:: shell
+
+    set interface state <interface> [up|down|punt|enable].
+
+Examples
+--------
+
+Example of how to configure the admin state of an interface to **up**:
+
+.. code-block:: console
+
+    vpp# set interface state GigabitEthernet2/0/0 up
+
+Example of how to configure the admin state of an interface to **down**:
+
+.. code-block:: console
+
+    vpp# set interface state GigabitEthernet2/0/0 down