network topology scanner

What are the features of each topology in the computer network topology? Answer: network Topology 1. A star topology is composed of a central node and a site that is connected to a central node through a point to a communication l

Network topology With the tap device and Veth pair, we can look at the network of OpenStack compute nodes. First, the virtual machine connects Linux bridge through the TAP device Secondly, the interworking between Linxu Bridge and OvS Bridge is realized through Vethpair Finally, the two-layer network interoperabilit

The network topology refers to the physical layout of devices connected by transmission media. There are multiple ways to connect the various devices involved in LAN work with media. In fact, there are only several ways to fit LAN work. If a network only connects several devices, the easiest way is to directly connect them together. This connection is called a po

Cool music IDC backend leakage can obtain detailed network topology information (typical case of poor division of network boundaries) A typical case where detailed information about all network assets of the company is disclosed due to poor division of network boundariesLeak

Today, we discuss the problem that the load balance of the topology is deployed under the redundancy network structure, and the dual NIC of the server is switched. Figure I Diagram one topology in four servers and load balance directly connected, each server dual network card connection One load balanced, load bala

SummaryThis paper analyzes the existing Ethernet link layer topology discovery algorithms, proposes improved algorithms, and provides the basic implementation methods of the algorithms. The new algorithm relaxed the conditions in the original algorithm, making the algorithm more widely used and adaptable. The new algorithm can discover devices that cannot be found by the original algorithm in the network.

, discard this request packet, the result, only B machine meet the conditions, B machine to send A alone ARP reply packet, the answer packet with B's IP corresponding to the MAC address, when a received the reply packet, the IP of B and its corresponding MAC address into the native ARP cache. Viewing the ARP cache table on Linux:ARPViewing the ARP cache table in Windows:arp-aARP Header1. Dest Mac: Destination MAC address2. SRC Mac: Source MAC Address3. Frame type: 0x08064. Hardware type: 1 (Ethe

generally the use of generic twisted pair wires, this transmission medium is relatively cheap, such as the current genuine cat5e twisted pair wires per meter is only about 1.5 yuan, the cheapest coaxial cable is about 2.00 yuan a meter, not to mention the cable. This topology is mainly used in IEEE 802.2 and IEEE 802.3 standard Ethernet LAN; 2) node expansion and mobility convenience: you only need to pull a line from the hub or switch and other cent

Test the remote network topology by monitoring the TTL response Sometimes, the network administrator can configure an internal network to implement communication between a single host and other hosts at different levels. A single Internet Protocol (IP) address may represent many devices that have opened ports on the i

limited. (2) It is difficult to diagnose and isolate faults. (3) distributed protocols do not guarantee the timely transmission of information and do not provide real-time functions. 3. ring topology A ring topology consists of links of sites and connected sites. Advantages of ring topology: (1) Short cable length. (2) When adding or removing workstation, you on

The topological structure of computer network is a method to study the relationship between the point and line in the topological research and the size, shape-independent. The computer and communication equipment in the network is abstracted as a point, and the transmission medium is abstracted as a line, and the geometry composed of dots and lines is the topological structure of the computer

Why use the leaf-spine topology network? (1) The structure of the three-layer network has developed very mature, but the leaf-spine (leaf node, spine ridge node) structure is becoming more and more popular. How should network designers choose? Despite the wide application and mature technology of the layer-3

Quick development of HTML5-based network topology applications and html5 Topologies Today, we started to explain how to build an HTML5 Canvas topology application based on the basic analysis. HT encapsulates a topology graph component ht. graph. graphView (GraphView) is the most abundant component in the HT framework w

In the analysis section above, the third step of taskmain is to enable the Topology class to analyze topology_file and start the Network object. This time, I will mainly introduce the detailed process of this part. The main content includes the Mechanism Analysis of the Topology class and sub-class Euclidian Topology c

Research on topology control of wireless sensor network based on energy levelabsrtact: in the planning and design of wireless sensor network, it is the first important problem to reduce the energy consumption of the nodes, prolong their working time and maximize the life cycle of the network. This paper designs a

Graphview the corresponding node in the topology diagram. in graphview graphview legend The selected node on the plugin is deselected, then gets the selected node, and the legend graphview legend legend graphview In the Graphview interaction, I added the _legendselect variable to the chart instance, The variable is set to prevent the legend plugin's node property from being modified in the Graphview interaction after the callback Le

Article title: Linux firewall entry: network topology. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. The so-called network Topology refers to the

The Hadoop network topology plays an important role in the whole system, it affects the start (registration) of Datanode, the allocation of maptask, and so on. Understanding the network topology can be a great help in understanding the operation of the entire Hadoop.The following two graphs are the first to understand

Preface3D engine room seems to have a ignition, it seems that the light weight of the web 3D is the trend, when the choice of WebGL rather than u3d is really grey often wise choice.3D Although cool, but in the real enterprise application, the data, the relationship is presented to return to the traditional 2D interface, and HTML5 is the best choice at present. Canvas like HTML5, although it is no longer a new technology, but directly in the browser to draw the

Facebook: an innovative data center network topology Facebook aerial bird chart in the data center of alitabane artuna Facebook's data center receives billions of user requests every day. As the company continues to add members and introduces new features, the number of requests continues to increase. This is basically a good thing for Facebook, but it is a challenge for Facebook's