了解 neutron 文档:https://yeasy.gitbooks.io/openstack_understand_neutron/content/ LB讲的不细.DVR讲的不清晰. 读了全文之后会发现这张图非常有助于理解: [GRE] GRE协议介绍 问题一: 这一章VLAN模式里,为啥OVS内要对vlan tag进行转换,由1->101, 以及有2->102? 一个典型的vxlan组网图…

清晰/浅显: http://www.cnblogs.com/sammyliu/p/4656176.html IBM:写的一般般,价值不大 https://www.ibm.com/developerworks/cn/cloud/library/1506_xiaohh_openstacklb/index.html Octavia https://docs.openstack.org/octavia/latest/ LB Network: https://docs.openstack.org/octa…

https://www.quora.com/What-is-the-relation-between-OpenStack-OpenDaylight-OpenFlow-and-Open-vSwitch-Are-there-other-options-in-place-of-any-of-these What is the relation between OpenStack, OpenDaylight, OpenFlow and Open vSwitch? Are there other opti…

简单的说,Ananta是一个基于SDN,为第四层负载均衡和NAT提供的分布式.可伸缩架构.Ananta已经在Bing和Azure上运营了三年,服务于多路Tbps吞吐量服务器的信息交互.它最大的好处是可以随需进行扩展,高度可靠,成本低廉,更新灵活. https://conferences.sigcomm.org/sigcomm/2013/papers/sigcomm/p207.pdf ECMP(等价多路径路由): https://zh.wikipedia.org/wiki/%E7%AD%89%E5…

man 手册关于IP netns的介绍: http://man7.org/linux/man-pages/man8/ip-netns.8.html 一个非常好的介绍,有概念,有操作: http://cizixs.com/2017/02/10/network-virtualization-network-namespace 一: 以下,操作都是根据上边这个文档来的,详细的我推荐去参见原文档! 创建namespace test1,以及一个veth [root@vrouter-ovs ~]# ip n…

What is Open vSwitch? Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license.  It is designed to enable massive network automation through programmatic extension, while still supporting stand…

http://vuejs.com.cn/ 这里面有个canvans 画图的js 代码.有意思,研究一下. Neutron 介绍:https://www.ibm.com/developerworks/cn/cloud/library/1402_chenhy_openstacknetwork/ Neutron本身不是SDN架构,但是不妨碍其结合其他技术成为SDN的架构,包括现在新的Plguin中Ryu.OpenContrail等,结合对应的SDN控制器,即可将Neutron的架构变成SDN架构.但是…

 Abstract The explosive scale of container CPUs needs highly efficient network virtualization Challenge The number of container-based CPUs will be 10-100 multiples up over that of hypervisor-based virtual machines; cloud networking needs upgrade to…

因为要搭建ovs-dpdk,所以需要vhost-user的qemu centos默认的qemu与qemu-kvm都不支持vhost-user,qemu最高版本是2.0.0, qemu-kvm最高版本是1.5.3 在这之前,首先搞懂两个问题. 一:qemu与qemu-kvm到底什么区别: https://serverfault.com/questions/767212/difference-between-qemu-kvm-qemu-system-x86-64-qemu-x86-64?utm_me…

[cloud][OVS][sdn] Open vSwitch 初步了解 继之前的内容,安装基于dpdk的ovs https://docs.openvswitch.org/en/latest/intro/install/dpdk/ 摘要: 一   内核设置与版本依赖: On Linux Distros running kernel version >= 3.0, only IOMMU needs to enabled via the grub cmdline, assuming you are u…