doc: internal document on openstack cooperation

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 0 insertions, 66 deletions

diff --git a/doc/source/how_l2_segregation_works.rst b/doc/source/how_l2_segregation_works.rst
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-.. _how_it_works:
-
-****************************
-How Ryu L2 segregation works
-****************************
-This section describes how Ryu L2 segregation works.
-
-tenant/network id creation
-==========================
-When tenant(= network id) is created, Quantum server tells it to Ryu.
-Ryu remembers the network id.
-
-  .. image:: /images/network-creation.png
-
-
-association OVS port to network id
-==================================
-#. When VM instance is created, the network port is created in OVS and
-   it is associated to network id that VM belongs to.
-
-#. quantum OVS agent tells the associated (network id, ovs port) to Ryu.
-   Ryu remembers (network id, ovs port) relationship.
-
-#. quantum OVS agent also tells to Ryu which OVS port is not managed by
-   nova/quantum, but is connected to external ether cable.
-   We call it external OVS port or that the port is external.
-
-
-  .. image:: /images/assoc-ovs-port.png
-
-
-mac learing
-===========
-When VM sends packets, Ryu determins network id from OVS port and then
-associates src mac address to network id.
-
-   .. image:: /images/mac-learning.png
-
-
-packet filtering(L2 unicast case)
-=================================
-* When VM sending L2-unicast packet, Ryu checks if the destination mac
-  address belongs to the same netowrk id of the source mac address which
-  is same to the network id that the OVS port is associated to.
-* If no, the packet is dropped.
-* If yes, send the packet is sent to ports which belongs to the same
-  network id and external port.
-
-   .. image:: /images/filtering-outgoing.png
-   .. image:: /images/filtering-incoming.png
-
-
-packet filtering(L2 broadcast case)
-===================================
-* When VM sending L2-broadcast/multicaset packet, Ryu checks if the source
-  mac address.
-* send the packet to all external ports and all OVS ports that belongs
-  to the same network id of the source mac address.
-* When receiving broacast/multicast packet from the external ports,
-  Ryu checks if the source mac address belongs to known network id.
-
-   * If yes, send the packet to the external ports except incoming one
-     and the all OVS ports that belongs to the network id
-   * if no, drop the packet.
-
-   .. image:: /images/filtering-broadcast.png