In an industrial production environment, the network deployed on the production line must have excellent reliability, recoverability, and maintainability to ensure that any device in the network system fails and will not cause operating systems, applications, or even The entire network system crashes or crashes.
At the beginning of the Ethernet design, the application requirements of the industrial network were not taken into account. Therefore, when network equipment is deployed in an industrial site, the stability of ordinary commercial switches will be adverse to the harsh working environment and severe electromagnetic interference. Suffered great challenges, but also put forward higher requirements for the function and quality of network products. How to ensure the leading function and stable quality of products under the premise of controllable costs, and become an unassailable enterprise in the fierce market competition. The key link in the land. The BigTao network test platform from Infotech Technology provides a complete test solution for industrial switch companies to solve this problem.
BigTao Network Tester
The BigTao network tester can realize port-wide line-rate traffic generation, statistics, capture, and parsing, and has a powerful 2-3 layer protocol emulation function that can simulate large-scale real-world network environments. It can meet the testing requirements of 2-3 layers of network equipment from R&D, experiment to production and other aspects.
1. Functional testing (including performance verification)
2-3 protocol simulation test
The above figure shows a typical network equipment test model. The middle part is the network under test (or device under test). The tester simulates two types of network nodes on the two sides. According to the user configuration, it can flexibly produce multiple rate and type protocol packets. Layer 2-3 forwarding performance test, RFC2544/2889 test, route test, and multicast related test of the tested device.
2. System Recovery Time Test (Reliability Verification)
Test number: 2
Project: Reliability Test
Test Subproject: System Recovery Time Test
Test Purpose: Verify Industrial Switch System Recovery Time
Test topology
Testing process:
1. Set up the network environment as shown in the figure to ensure that the status of each connection port is UP;
2. Industrial switches SW1, SW2, SW3 form a loop;
3. Normally, the traffic goes through the AB channel between SW1 and SW2.
4. Suddenly interrupting the AB channel between SW1 and SW2, the traffic is automatically transferred to the CD channel, and enters SW2 through the EF channel of the SW3 switch. After the device is stable, the number of packet loss is calculated and divided by the PPS to obtain the system recovery time.
Test result output form and expected result:
1. Port T1 and port T2 can both send and receive packets normally, without packet loss.
2. After the switch is stable, the port is not lost.
After testing, it was found that different manufacturers of different series of industrial switches, the system recovery time varies widely, ranging from less than 5ms to tens of seconds, the fastest one is only 5ms, slow manufacturers reach 350s, according to the industry standard response time test, Almost half of the manufacturers cannot meet the mandatory requirements of <50ms. In the event of a sudden situation, the network cannot continue to work stably, and cannot recover quickly. It cannot ensure the continuous stability of the industrial network.
Bigtao tester V series test module introduction
The BigTao test platform is modularly designed to allow customers to flexibly select configurations based on test requirements. At present, the BigTao platform has multiple test board series such as P series and V series. Among them, the newly launched V series test module is an upgraded version of the original T series module, and has more new specifications and features to complete more test tasks. .
V6016C test module
The V series module is based on the PCIE bus design and is applied to the BigTao test platform. It can implement 2-3 layers of network equipment performance testing and protocol simulation testing to meet the test requirements of network equipment R&D, experiment, and production.
â— Powerful traffic generation capability
The V series module supports IPv4 and IPv6 protocol stacks. Each port supports up to 512 independent data streams. Each stream supports four hop domains. Each port can simulate tens of thousands of interfaces and simulate ten million user connections. .
The V series module supports multiple protocol templates, supports accurate speed control based on ports and streams, supports dynamic speed adjustment, and can be flexibly configured for content and rate of data packets, and can perform complex protocol testing, simulation, and conformance testing.
â— Test software
V series module supports graphical interface software TeleExplorer, automatic configuration of TCL scripts and APIs for secondary development, including RFC2544/2889/3918 and other standard test suites, and supports production automation test software TeleATT, which can realize the testing and simulation of multiple protocols. And Ethernet equipment performance testing and stress testing.
â— a variety of port density and type to choose from
The V series is divided into four types: V6000, V6100, V8000, and V8100. It has multiple types of cards, and the maximum number of ports on a single board is 16. It supports 10/100/1000 M RJ45 ports, 100/1000 M SFP ports, and 10G SFP+ ports. Various port types and rates allow customers to choose flexibly based on actual test requirements.
V Series Module Features:
✓ Hardware-based full line rate traffic generation and analysis
✓ Integrate protocol stacks such as IPv4 and IPv6 to support Layer 2-7 testing
✓ Supports protocol simulation and conformance testing such as OSPF, BGP, IGMP, PPPOE, RIPv2, RIPng, LDP, 802.1x, 802.3ah, 802.1ag, ISIS, PIM-SM, and RSVP-TE.
✓ Supports flow-based multi-layer VLAN and multi-layer MPLS
✓ Send 512 streams per port
✓ Each stream supports up to 4 hop domains to meet a variety of complex test requirements
✓ The contents of the data packet can be customized to facilitate the testing of special requirements
✓ Support accurate speed control based on port and flow and support dynamic speed adjustment
✓ Wire-speed traffic capture, edit, filter, search for captured packets
✓ Stand-alone use or network sharing remote operation
✓ Can generate many kinds of error messages to simulate various complicated applications
✓ Support table statistics and graph statistics
✓ Standard RFC2544/2889/3918 test suite
Get the details of the V series board: http://?m=20130418114733577648&zilei=20130418131313373718
About XinTai Technology Beijing XinTai Technology Co., Ltd. was established in 2007 and is a national high-tech enterprise with independent intellectual property rights. Since its inception, Shinstech has always focused on the field of communications network testing and industrial communications products, and has always been committed to providing customers with high-quality, excellent service, low-cost network test solutions and customized industrial communications products.
The company's core team members are from internationally renowned companies in the ICT field and have more than 10 years of industry experience. The team includes several experts in communications network testing. With the solid foundation of the core team and continuous accumulation over the years, Xintai Technology has a strong R&D team with strong technical force, providing inexhaustible motive force for the company's sustainable development.
Letter and Thai technology adhere to technological innovation, with strong technical strength, independent research and development of TestStorm series, BigTao (channel) series, iTester series and Tlite handheld network tester and other network test equipment and test modules, has been highly recognized by customers , and thus become the largest supplier of network testers for domestic test port shipments. Shinetech's customers include large and medium-sized telecommunications manufacturing companies, research institutes, research institutes, universities, electric power, transportation and other well-known enterprises and institutions. Products have been widely used in various related fields and have won A good reputation.
While continuing to improve the functionality and features of existing products, Shinetech has always been at the forefront of the development of domestic communications test products, and has launched the first domestic 10/100/1000M self-adaptive, 10G, 40G, etc. High density Ethernet tester for electrical interfaces. At the same time, thanks to the solid accumulation of Ethernet technology, Xintai has custom-developed standard 3U/6U CPCI/VPX L2/L3 switching boards and network storage systems for various partners and has formed a complete product line.
Xintai Technology adheres to the philosophy of "focus, innovation, cooperation, and service" and the concept of customer first. It insists on providing customers with the best cost-effective products and services that satisfy customers. In addition, for customers with special testing needs, Xintai can also provide customized network testing and industrial communication solutions so that every customer can find products and solutions suitable for them in Xintai.
An Indoor Access Point is a device for wireless local area networks (WLAN) that provides wireless network coverage and connectivity. It can connect to a wired network and transmit data via a wireless signal, allowing users to connect to the network wirelessly within coverage.
Indoor access points come in a variety of different types and specifications to suit different scenarios and needs. Here are some common types of indoor access points:
1. Single Band Access Point: A single band access point operates in the 2.4GHz band and typically provides a maximum transfer rate of 300Mbps. This type of access point is suitable for small office or home networks because the 2.4GHz band has better penetration and coverage, but a relatively low transfer rate.
2. Dual Band Access Point: The dual band access point supports both 2.4GHz and 5GHz bands, providing higher transmission rates and better performance. The 5GHz band has more interference free channels than the 2.4GHz band, which can provide faster speeds and more stable connections. Dual-frequency access points are suitable for medium sized offices, malls or hotels.
3. Lightweight Access Point: A lightweight access point is a wireless network device that needs to be used with a network controller. Lightweight access points do not have independent management functions themselves, but are centrally managed and configured via a network controller. This type of access point is suitable for large enterprises or organizations to enable centralized management and monitoring of the entire network.
4. Standalone Access Point: A standalone access point is a standalone device that has its own management and configuration functions and does not require additional network controllers. This type of access point is suitable for small businesses or individual users and can provide a simple and easy-to-use wireless networking solution.
5. Scalable Access Point: A scalable access point is a device that can scale on demand, increasing or decreasing the number of access points based on network demand. This type of access point is suitable for places that require flexible scaling, such as large office buildings, schools, or hospitals.
In addition to the types listed above, there are some special purpose indoor access points, such as:
1. Wall-mounted Access Point: A wall-mounted access point can be plugged directly into a Wall power outlet without the need for an additional power cord. This type of access point is suitable for home networks or small offices and can provide easy installation and use.
2. Integrated Antenna Access Point: The antenna of the antenna access point is integrated into the device, and no additional antenna installation is required. This type of access point is suitable for sites that require simple installation and a nice look.
3. Multiple Antenna Access Point: Multiple antenna access points can achieve better signal coverage and performance through multiple antennas. This type of access point is suitable for large venues or high-density user environments, such as conference rooms, stadiums or airports.
To sum up, there are many different types and specifications of indoor access points, which can be selected according to different scenarios and needs. Whether it's a small office, home network or a large enterprise, you can achieve convenient wireless network coverage and connectivity through indoor access points.
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