sdn openflow

The goal of SDN is to achieve an idealized enterprise network, separating network control from physical network topology, this creates an environment for sending traffic from the central management controller to all vswitches and routers. In a software-defined network environment, this software-based controller must have end-to-end monitoring capabilities for network resources and capacity. Through the network end-to-end view, the

environment and software release notes === Sn-controller: Cpu:2 cores Ram:4gb Disk:32gb Operating system:centos7 x86_64 1611 (Linux 3.10.0-514) Infrastructure Server IP1:10.0.3.100/24 (Public Network) IP2:172.16.3.100/24 (SDN Network) === Opendaylight:boron Download Address Reference Virtual Tenant Network (VTN) "Opendaylight Application Guide" (Hong Tang, etc.) functional Experience Opendaylight's VTN is an application on the

Author: Zhang Hua posted: 2013-06-13Copyright notice: Can be reproduced arbitrarily, please be sure to use hyperlinks in the form of the original source of the article and the author's information and this copyright notice (http://blog.csdn.net/quqi99) In my opinion, the essence of SDN is technically mainly the following three points: 1) There is a controller that separates the control flow from the data stream. The switch will ask the controller

the Linux kernel module that gets bridge IOCTLs;The OVS-DPCTL is used to configure the switch kernel module;Some scripts and specs auxiliary OvS are installed on the Citrix XenServer as the default switch;Ovs-vsctl Query and update the configuration of Ovs-vswitchd;Ovs-appctl Send command message, run related daemon;The Ovsdbmonitor GUI tool allows remote access to OvS databases and OpenFlow flow tables.In addition, OvS provides feature implementatio

accepted within the enterprise, and the Enterprise network management is not willing to open the BGP protocol on the cross-network router-its scale advantage does not come out. This is the Calico project.Daoli.netThe fourth is called the Cloud, founder Dr. Wenbo Mao, Dr. Mao originally and I was a colleague of EMC, he is mainly focused on the security field of virtualization. Truth Cloud Container Network, can be said from the technical field is very very advanced. He thinks that since we're de

specific technology. It is a network design concept. It plans the software, hardware, forwarding plane and control plane of the network and the interaction between them, the network architecture is redefined and divided into forwarding layer, control layer, business orchestration layer, and application layer. We often say that SDN controller refers to the control layer software that sends a stream table to the forwarding layer through

Editor's note: This series is divided into three articles on the ONOS White Paper, and then theONOS white paper, which is translated in part 5 of the white Paper ONOS structure, if there is any improper, please correct me. 5.ONOS ArchitectureONOS from the outset from the point of view of the service provider architecture design. It has basic performance such as high availability, scalability, and good performance, as well as a strong North interface abstraction Layer and a south interface. Th

from the development of control, management, and configuration services. This abstraction layer is also one of the factors that have similar web -style flexibility to the SDN control platform and service provider network . The /apisis a south-to-the-interface abstraction layer that controls OpenFlow devices and traditional devicesthrough a plug-in South interface protocol . The south-to-interface abstracti

corresponding components or apps. Ofproto /-Including the version information of openflow protocol and analysis modules related to openflow protocols of different versions (of 1.0 1.2 1.3) Topology /-Includes the topology discovery Code related to openflow switches and the processing of topology discovery information (such as ports and links ). The lldp protoc

Vswitchd is a user-state daemon process. Its core is to execute the ofproto logic. We know that ovs is implemented in accordance with the openflow switch specification. Taking Layer 2 packet forwarding as an example, a traditional switch (including the implementation of Linux Bridge) searches for a cam table, find the port corresponding to the DST Mac, while the implementation of the open vswitch is to find whether there is a corresponding flow based

environment and software release notes === Sn-controller: Cpu:2 cores Ram:4gb Disk:32gb Operating system:centos7 x86_64 1611 (Linux 3.10.0-514) Infrastructure Server IP1:10.0.3.100/24 (Public Network) IP2:172.16.3.100/24 (SDN Network) === Opendaylight:boron Download Address Reference OpenFlow Plugin Project User Guide "Opendaylight Application Guide" (Hong Tang, etc.) Installing the Openflowplugin module G

node (walk Snat traffic) to the neutron Controller Agent. The Neutron controller agent is equivalent to the traditional SDN scheme of network controllers, more accurately three layer of SDN controller. The L2 Agent is running on the compute node. In the original DVR mode, network nodes to run L3 Agent, now do not need. That is to say, Dragonflow changed to pure use Ope