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iroy33
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[论文笔记] Internet Cache Pollution Attacks and Countermeasures
mendeley的复制比较好用&&颜色mark也很好用ISP ：Internet Service ProductLocality-disruption attacks continuously generate requests for new un-popular files, thus ruining the cache file locality.False-loca...原创 2019-11-17 11:38:56 · 279 阅读 · 0 评论 -
SDN week 5：Programmable Data Planes
文章目录conventional data plane数据平面定制——实现更复杂的功能本质功能Motivation for software data planeclicksummary课程前半部分软件click定制数据平面工程 使数据平面更加programmable以及scalableconventional data plane传统的数据平面是什么样的数据平面定制——实现更复...原创 2019-11-15 20:29:22 · 663 阅读 · 0 评论 -
[论文笔记]CAB:CAching in Buckets && CAB-ACME
首先还是得明白什么是wildcard rule叭一个123.132.8.0/22的wildcard rule就要缓存1024个microflow rules网络地址占22位，主机地址占10位。。。没找到比较好的解释参考文献M. Yu, J. Rexford, M. J. Freedman, and J. Wang.Scalable flow-based networking with ...原创 2019-11-13 12:04:09 · 560 阅读 · 0 评论 -
SDN Week4 Network Functions Virtualization and docker
OverviewApplicationsProblems in NFVOne Architecture.Slick原创 2019-11-11 09:59:21 · 218 阅读 · 0 评论 -
负载均衡
负载均衡负载平衡器将传入的客户端请求分发到计算资源，例如应用程序服务器和数据库。负载平衡器部署在服务器场的前面。所有服务器都连接到负载均衡器。负载平衡器对客户端显示为虚拟服务器。它具有虚拟IP地址，代表整个服务器场。Building Packet学习 def function_for_arp_reply(self, dst_ip, dst_mac): ...转载 2019-11-07 20:59:15 · 726 阅读 · 0 评论 -
SDN week 4 Slicing Network Control/Virtualization in Multi-Tenant Datacenters
Slicing Network controlThen I’ll talk about specific concepts of flowspace, and various ways that slicing policies can be defined. I’ll then talk about FlowVisor, which is a particular SDN controlle...原创 2019-11-06 19:15:16 · 602 阅读 · 0 评论 -
Software Defined Network week 4（二） Network Virtualization with Mininet
Network Virtualization with MininetThe first part of the lesson will cover the why and how of Mininet, in particular, what Mininet is useful for and how it works.In the next part of this lesson we ...原创 2019-11-05 11:01:27 · 270 阅读 · 0 评论 -
Software Defined Network week 4
文章目录Learning ObjectivesPrior Knowledge CheckKey TermsvideoVirtualizationwhat is network virtualization ?examples of virtual machine technologymotivation for network virtualizationthe promise of networ...原创 2019-10-29 19:59:59 · 631 阅读 · 0 评论 -
Software Defined Network week 3（三）
Here’s an overview of the Ryu architecture. At the very bottom of the picture, you can see a bunch of libraries that we’ll talk about. We also have a Ryu controller interface with switches via vario...原创 2019-10-28 20:42:54 · 225 阅读 · 0 评论 -
Software Defined Network week 3（二）
Commercial-Grade Controllers: ODLThe OpenDaylight Consortium has heavy industry involvement and backing. It’s focussed on providing an open frame work for building on various SDN and network functi...原创 2019-10-26 10:38:48 · 157 阅读 · 0 评论 -
Software Defined Network week 3（一）
Learning ObjectivesReview how an SDN controller can populate a switch’s forwarding table.Determine how an SDN controller can be used to control multiple switches in a single network, and why that m...原创 2019-10-25 20:33:34 · 527 阅读 · 0 评论 -
Software Defined Network week 2
学习目标：区分控制平面和数据平面识别论证平面功能能够距离Key TermsMininet: A network emulation platform that has the ability to create a virtual OpenFlow network; controllers, switches, hosts, and links on a single real or...原创 2019-10-25 09:15:38 · 314 阅读 · 0 评论 -
Software Defined Network week 1
the nuts and boltsthe practical facts about a particular thing, rather than theories or ideas about it:When it came to the nuts and bolts of running a business, he was clearly unable to cope....原创 2019-10-23 20:53:58 · 396 阅读 · 0 评论 -
OpenDayLight学习记录之User Guide
讲真是有点害怕的Chapter 1 OpenDaylight Controller OverviewThe OpenDaylight controller is JVM software and can be run from any operating system and hardware as long as it supports Java. The controller is an ...原创 2019-10-22 10:11:57 · 552 阅读 · 0 评论 -
OpenDayLight tutorial
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/javabuntu@sdnhubvm:~[22:39]$ sudo update-alternatives --config javaThere is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm...原创 2019-10-21 09:35:37 · 865 阅读 · 0 评论 -
术语整理
端口转发（Port forwarding），有时被叫做隧道，是安全壳(SSH) 为网络安全通信使用的一种方法。faucetsdn/faucet: FAUCET is an OpenFlow controllerPort：端口是收发数据包的单元。OpenvSwitch中，每个端口都属于一个特定的网桥。端口收到的数据包会经过流规则的处理，发往其他端口；也会把其他端口来的数据包发送出去.主要有类...原创 2019-10-20 12:49:56 · 246 阅读 · 0 评论 -
Open vSwitch常用指令
link設定 OpenvSwitch by roan，内容相对比较全面，但是给出的网页链接废了好多流表中数字越大，优先级越高关于显示ovs-vsctl list bridge br0关于port更改 ofport (openflow port number)为100：ovs-vsctl set Interface eth0 ofport_request=100设置 port ...原创 2019-10-19 11:10:27 · 2383 阅读 · 0 评论 -
Open vSwitch学习之tutorial
link tutorialGetting Startedconnect it to an OpenFlow controller or use ovs-ofctl to examine and modify it and its OpenFlow flow table.On the other hand, the bridge is not visible to the operating...原创 2019-10-19 09:41:23 · 324 阅读 · 0 评论 -
2019/10/18 问题汇总
关于ovs（一）IP地址关于OVS（一）MAC关于Linux（mininet introduction）shell’s wait mechanismmininet introductionroot@ubuntu:/usr/lib/python2.7/dist-packages/mininet/examples# python hwintf.py*** Connecting to ...原创 2019-10-18 15:27:38 · 171 阅读 · 0 评论 -
Open vSwitch学习记录（二）
如果不ifconfig mybridge up ifconfig里面不会显示mybridge没有配置mybridge之前也是可以ping通的可以看到是完全匹配的，子网掩码，默认网关之类的A Network TAP (Terminal Access Point) denotes a system that monitors events on a local network in orde...原创 2019-10-17 20:59:39 · 380 阅读 · 0 评论 -
Open vSwitch学习记录
顺利完成目标~~~开开心心地开始学Open vSwitch概念简而言之就是一个虚拟交换机。主要有如下两个作用：传递虚拟机啊VM之间的流量实现VM和外界网络的通信Bridge: Bridge 代表一个以太网交换机（Switch），一个主机中可以创建一个或者多个 Bridge 设备。Port: 端口与物理交换机的端口概念类似，每个 Port 都隶属于一个 Bridge。Inter...原创 2019-10-17 08:49:02 · 914 阅读 · 0 评论 -
Mininet学习记录之源码分析
没有找到我的mininet目录在哪，只有子目录？？init.py： python 代码导入控制文件from mininet.topo import Topomininet.topo是啥node.pyHost：等同于 Node。KernelSwitch：内核空间的交换机，仅能在 root 名字空间中执行。OVSLegacyKernelSwith：内核兼容模式交换机，仅能 root 名...原创 2019-10-15 20:40:26 · 1503 阅读 · 0 评论 -
mininet学习记录之openflow
一、FAQmn 指令的默认controller是ovs-controller，最多只支持16个switch，如果要支持更多，必须换controllerOpenFlow reference implementation usingmininet/util/install.sh -f. Consult the comments in the example's.pyfile for...原创 2019-10-12 20:22:07 · 2251 阅读 · 0 评论 -
mininet学习记录introduction
一上来的python文件就遇到了缺少OVS控制器的问题，明天早上我应该会在本例中, 我们会创建一个不连接到任何控制器的 OVS 交换机（昨晚解决了所以这个要延后了）还有一个重要的就是examples的文件夹，最好跟着走一遍What are Mininet's limitations?mininet只能在Linux下运行--nat可以从mininet链接到本地的网最好将ho...原创 2019-10-11 12:09:02 · 679 阅读 · 0 评论 -
mininet学习记录之walkthrough
接下来要看的教程：walkthrough拓扑编程语句youtubu视频也不错~sudo mn -h展示helpsudo mn： one OpenFlow kernel switch connected to two hosts,plus the OpenFlow reference controller它相当于sudo mn --topo=minimalhelp可查看在...原创 2019-10-10 20:19:28 · 1160 阅读 · 0 评论 -
mininet学习记录一
sudo apt-get install mininet1、mininet CLIsudo mn --topo=single,22、定制拓扑sudo mn --custom ./topo-2sw-2host.py --topo mytopo --test pingall创建一个MyTopo类继承Topo，注意要建一个字典可以看到ping通了3、Iperf 带宽...原创 2019-10-10 15:51:22 · 799 阅读 · 0 评论