Mirantis, one of the benchmark companies in the OpenStack field, released the latest MOS 8.0 version in early March 2016. This paper tries to make some inductive analysis based on the public data.1. Version Overview 1.1 overview
Community version: Liberty, the default integrated components include ceilometer,Cinder,Glance,Heat,Horizon, Ironic (first support),Keystone,Murano (an application catalog, first-time support),Neutron (using Open vSwitch 2.3.1, enhanced L3 HA VRRP, support for IPAM,
2016 Huawei Developer ContestHuawei Developer Challenge 2016 is a large-scale software competition for developers across the country, dedicated to providing open and comprehensive development support services across Huawei's product portfolio, finding innovative seeds and incubating innovative solutions to promote Huawei's competitive market. Help developers to achieve business innovation, the success of the developers dream of innovation. Contest Content Coverscloud Computing, IoT, Openlife, Ca
"Cloud computing network Zhu Ji Nanxiong"Basic informationLi JunwuPublishing house: Electronic Industry publishing houseisbn:9787121253775Last Date: 2015-2-6Publication date: March 2015Folio: 16 OpenPage: 275Edition: 1-1
"Cloud computing network Zhu Ji Nanxiong"Content Introduction"Cloud computing network Zhu Ji Nanxiong" focuses on the principles of network technology used in cloud computing network virtualization, focusing on the underlying context o
Recently see the POF code to see the headache, but fortunately is done, the rest is the idea of POF can be integrated into the code of the EPC, I also for the future 5G point of view is not? First of all, say what POF is.Introduction to POFThe full name of the POF (Protocol oblivious Forwarding) is the protocol is not aware of forwarding, Huawei proposed an improved forwarding method on the OpenFlow, this way do not need to know the protocol is what the packet can be forwarded out. It can improv
"Summary"Iperf is a network performance testing tool, it can be easily used for SDN network bandwidth and network quality testing,Iperf Support protocol, timing, Configuration adjustment of buffers and other parameters, reporting tcp/udp Maximum bandwidth, delay jitter, packet loss and other statistics. 1 Iperf Installation Iperf Installation method has a variety, you can download the source code compiled installation, you can also directly use the c
this port number is in which IP, which port, which container is executed. As the user does not need to modify any code (such as compatible with what ZOOKEEPER/ETCD God horse), do not care. Even this port is followed by multiple remote IPs that make up a client-based high availability. The agent can even do something wrong to change a backend and try again.With this artifact, the capacity to expand, release changes, failure to replace is easy. Containers are freely added and deleted. Once the ne
software. However, data storage has already broken through the restrictions of specific content, access to data resources other than the file system."
SAP can improve the performance of its trex search system through the search engine technology included in NetWeaver, and thus create search indexes for organized and unorganized data.
Microsoft recently released a new search tool to manage users' searches based on company data in multiple locations. The tool's code name is "oneview". Microsoft's
questions about software-defined storage are dispelled.Overview
In the current data center, the I/O path from the application to the storage device is particularly long, including many layers or stages. For details, click here, in addition, the interfaces between these layers are still not transparent (like tunnel), which makes enforce an end-to-end policy (for example, for different tenant, different storage bandwidth is required, for example, hot data and cold data, such as customers of diffe
In a production environment, we will encounter disks with partitions larger than 2T (e.g. add a 3TB storage), because the MBR partition table only supports 2T disks, so a disk larger than 2T must use the GPT partition tableWhile Fdisk does not support GPT partitioning, we can use parted to operate on GPT disks. Parted function is very powerful, both command line can also be used for interactive, at the prompt input parted will enter the interactive mode, if there are more than one disk, we need
between the goals that OpenFlow hopes to achieve and the existing and planned ASIC goals.
Now ONF is working on the establishment of the chip advisory board. McKeown said: "We will learn from them the possibility of chip technology, from there, we can extend the possibility of the next generation of OpenFlow."
OpenFlow has begun to use content-addressable memory (content-addressable memories) as an intermediate medium for routers and switches ASIC. However, the functions of this method are limi
parse data packets layer by layer at the protocol stack level. The so-called router is a layer-3 device, and the switch is a layer-2 device, firewalls are classified into two-layer firewalls and three-layer firewalls... the PF_RING device can directly DMA data packets from the NIC chip to the memory on your machine. That's all. Then, you can process data packets through an application instead of the kernel protocol stack, as for how your application processes data packets, I will list the follo
computing, network and storage restrictions, significantly increasing QoS and user experience.Objective of SDS
The goal of SDS is the same as that of the software-defined network. SDN goals can be divided into two dimensions: horizontal optimization capability; vertical Optimization, is software integration that controls the plane and data plane.
From the perspective of high-level applications (compared with low-level LUN and RAID), Application Deplo
Figure 1: Low latency software defined networking control loop The articles SDN and delay and delay and stability describe the critical importance of low measurement delay in CONSTRUCTI Ng stable and effective controls. This article would examine the difference in measurement latency between SFlow and Netflow/ipfix and their relative Suitabi Lity for driving control decisions. Figure 2: sFlow and NetFlow agent architectures Figure 2 illustrates shows
One, openflow to solve what problem?1. First, a brief introduction to what is SDN, the traditional network is the computing route of each node itself, SDN is centralized control of the route. In a data center network, there is only one controller, the following can be connected to multiple switches. After the controller has calculated the route, the flow table is sent to the switch, and the switch is forwar
cloud providers cannot support the router hardware installed by users. In addition, there are potential sequential failover and overflow problems, because load balancing is not a normal property of VPN. The good news is that there are emerging solutions on the market that can help optimize the efficiency of VPN in the cloud environment.
Use SDN to connect to cloud Resources
An emerging method for connecting to cloud resources is to use software defin
between the parent and child elements, there will be a problem. In ie6-, you can set all the Li styles through #nav li{}, and then overwrite the style with #nav Li *{}.Adjacent sibling selector: used to locate an element after an element under the same parent element, such as h2+p. If there is a comment between the target elements, IE7 also has a bug.Property selector:You can find an element based on whether a property exists or the value of the property.Select whether an element has a property
, if it is IE, replace all tags with the modified version (embedded ). Note that we have to use regular expressions and the innerHTML property to replace the standard Dom method, because IE cannot get properties through the DOM.
Styling
Finally, take a look at the CSS used on this page. Quite simple:
ABBR, acronym, SPAN.ABBR {Cursor:help;border-bottom:1px dashed #000;}Mozilla and Opera use the ABBR and acronym
If you are very proficient in HTML and see this title, you may think of the acronym mark in HTML4. That's right. acronym is an English word. Chinese means the acronyms, however, acronym has been discarded in HTML5. Instead, the abbr mark is replaced by the English word abbre ...,. If you are very proficient in HTML and see this title, you may think
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