beaglebone ethernet

In this section to learn about the physical layer of Ethernet, the IEEE802.3 standard gives the physical layer structure of the Ethernet, as indicated in the red box shown.We can see that physics can be broadly divided into: gmii media independent interface, PCS physical coding sub-layer, PMA Physical media connection layer, PMD physical media related layer, MDI interface, Medium physical medium.From the bo

Ethernet Channel protocol is a link aggregation protocol developed by Cisco, which can bind multiple physical Ethernet links into a logical link, which can increase transmission bandwidth and improve link redundancy through multiple port bindings. Currently VNX supports the Ethernet channel protocol, where all ports are connected to the switch using the same IP a

With the development of the exchange industry in China, we have also promoted the update and upgrade of the exchange technology. Here we have analyzed the problem that Ethernet switches are slowing down for no reason. When the network scale is relatively large, the ethernet switch that handles network data forwarding, content filtering, and management control tasks will be overloaded. In addition, like a pe

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. KeywordsLink Layer topology SNMP 1 Intr

Basic protocols running on Ethernet 1. Introduction A network listening tool was compiled some time ago. To analyze captured data packets, you must be familiar with various network protocols. I am suffering from the fact that there are few articles on the Internet that focus on this aspect, and most of the books are not carefully explained. A small number of books devoted to network protocols are too large to meet our requirements. Therefore, we will

In the past, on-site cabling was very simple. The sensor can be either power-supply or passive. The power supply type requires 2, 3, or 4 cables, and the passive type requires only 2 cables. At the same time, the sensors are both analog-type and support 12, 24, 36, 48VDC, or 110, 220VAC voltages. The field controller provides power for each sensor, and each sensor is connected to its related controller. Because the controllers are both analog-type, factory wiring is constantly increasing. When a

First, determine whether there is network data connection:The most basic network state judgment, if there is no network connection, all operations will not go on.Microsoft.Phone.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable ()Second, determine the network type (gsm/cdma/wifi/ethernet):In the general application, need to know the network status is also three kinds: No network, wifi/ethernet,

Resolving network bottlenecks Gigabit Ethernet becomes the key As IT departments add input/output-intensive and communication-intensive applications to servers, data center networks are facing a significant increase. Systems installed around 1 GbE are no longer efficient; in many cases, replacement technology: 10 GbE is also a network bottleneck. Fortunately, there are more than one way to clear up congested network traffic, from low-cost, fast-acti

An analysis of the two-layer VLAN forwarding of Huawei Ethernet switches and its advantages. To solve the problem of VLAN introduced by Huawei Ethernet switches, we must first understand the benefits brought by VLAN introduction. Remember the corresponding instance. Therefore, it is very advantageous to study the following carefully. Packet forwarding thread: After VLAN is introduced, the packet forwarding

The Linux kernel receives the Ethernet frame processing program-general Linux technology-Linux programming and kernel information. The following is a detailed description. 1. Preface In addition to the 6-byte destination MAC address and 6-byte source MAC address, the Ethernet frame type value of the two bytes also exists in the Ethernet header, for example, IP