db15 to rj45

background: As we all know, the default configuration of Redis generates a total of 16 db db0~db15, and one of the roles of 16 db is to facilitate different projects using different db, to prevent data confusion and to facilitate data viewing.Python uses db0 by default if you do not specify which db to use when connecting Redis. Students who have used the Scrapy_redis module also know that the db0 and seed queues are on the top of the line. Now there

I believe that many vro users still have a better understanding of vro configurations. Here we will mainly introduce the specific steps of vro configuration and debugging. vro plays an important role in the computer network, it is a bridge of computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Router configuration is not very easy for beginners. Now we will introduce the vro configuration and simple debugging for your

that there is no upstream interface; this bit is not allowed by the new product)G, indicating the upstream GBIC interface;P indicates the upstream SFP interface;T, indicating the upstream RJ45 interface;V indicates the upstream VDSL interface;W indicates that the WAN interface can be configured on the uplink;C, indicating that the upstream interface is optional;M, indicating that the uplink interface is a Multimode Optical port;S indicates that the u

There are still many things worth learning about configuring routers. Here we mainly introduce Ethernet port configuration, X.25 configuration, and so on. Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access. Configuring a router is not very easy for beginners. We will introduce general router configuration and simple debugging for your re

of the three cables for convenient use. The network cable is eight cores. Currently, four trees in the family have no practical use. You can use two cables as telephone lines, but the effect is not as good as that of a single cable. The telephone line also has 2-core, 4-core, and 6-core lines. It is also useful for two lines at home. The quality of cables is very important, especially coaxial cables). In my experience, if signal interference or attenuation is found, the problem may be caused by

. The 6e Cable supports 10 Gb network in the range of 100 meters. Compared with Category 5 and category 5e cables, Category 6 cables are not susceptible to crosstalk and external EMI noise. Industrial Ethernet cables are designed to withstand physical erosion of cables in more harsh industrial environments. Make sure that the RJ45 interface and socket can also be of Class 6 levels when installing 6 types of cables. It is best to use a pre-prepared plu

Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to different networks, but also selects data transmission paths and blocks illegal access.Router configuration is not very easy for beginners. Take Cisco2501 as an example.Cisco2501 has an Ethernet port AUI), a Console port RJ45), an AUX port RJ45) and two synchronous serial ports. It su

faulty. Let's take a look at the NIC appearance: 1. RJ45 connector Problems　 RJ45 connectors are prone to failures. For example, the head of the twisted pair is not topped by the RJ45 connector, the twisted pair is not pressed into the connector according to the standard position, or even the connector specifications are inconsistent or the internal twisted pair

, and improved security and confidentiality. IPv6 inherits the advantages of IPv4 in routing technology and represents the future direction of routing technology. Many router manufacturers have invested a lot in the production of IPv6. Of course, IPv6 is also worth noting and inefficient. IPv4/NAT and IPv6 will coexist for a long time. Vro configuration and debugging Routers play an important role in computer networks and serve as a bridge between computer networks. It not only connects to diffe

password, and encrypt WAP files to prevent other users from obtaining and using resources. 2. log on to the "192.168.0.1" interface for a long time. In 3-5 minutes, the wireless network connection experiences a signal decline. The signal drops to 11 Mbps, and the connection is exited and fixed. The fault is solved. In the overall debugging process, xiaobian also took a lot of steps, mainly due to lack of awareness of the WAN port. First, follow the previous steps to connect to the hardware conf

Nowadays, optical transceiver network devices are increasingly used in our network engineering. They are used in small-scale optical fiber trunk connection solutions, so it is better to use optical fiber interfaces for switches in large-scale optical fiber trunk. Because of the various types of optical fiber, wavelength, interface type, rate, and other technical indicators, a wide range of Optical Fiber transceiver products are available. How do we know which optical transceiver to choose? This

Prepare tools: Network cable, crystal head, crimping clamp, network cable Tester Theoretical Understanding: Differences between direct connection and twisted pair wires Two standards for network cable connection: TIA/EIA-568B: 1, white orange, 2, orange, 3, white green, 4, Blue, 5, white blue, 6, green, 7, white Brown, 8, brownTIA/EIA-568A: 1, white green, 2, green, 3, white orange, 4, Blue, 5, white blue, 6, orange, 7, white Brown, 8, brown If both ends of the network cable have the same wiring

RJ45 network cable plug, also known as crystal head, is widely used in the connection between network cables of LAN and ADSL Broadband Internet users. Network clamp and wire measuring instrument will be used during the production process. ▲Figure: crystal head ▲Figure: Network clamp and wire Measuring Instrument In specific applications, RJ45 plug and network cable have two connection methods (line sequence

/receiving buffer can exchange data quickly, with a maximum communication rate of 25 Mbps. The 10 BaseT/100BaseTX Ethernet physical layer is embedded and supports automatic response.Multiple bus interface modes are provided, which can be easily connected to various MCU, simplifying the hardware circuit design, enabling the embedded system without the support of the operating system, it truly realizes the ideal of Single-Chip access to the Internet. In order to reduce PCB Area and wiring complexi

a few, the connection network cable of the crystal head professional terms called RJ45 connection socket, is dedicated to connecting the two ends of the twisted pair wire. By creating an RJ45 connector, we can connect the network cable to the NIC or concentrator device. The crystal head on the market is usually about a dollar, it is best to buy those crystal heads with relatively hard material brand loans,