What does a single mode module look like? What is the LH standard? What does SM stand for? What does GLC-LH-SM mean? [GLC-LH-SM] first, the blue pull ring represents a single-mode SFP module, corresponding to the following [SM], that is, single mode-.
In data center cabling, how to match the corresponding types of optical fiber jumpers for different types of optical modules? The editor will sort out the knowledge through this article, and I believe it can provide corresponding help to everyone. There are many types of optical modules that can be classified according to packaging (SFP,SFP+,XFP,XENPAK
[experimental name] using layer 3 switch to realize inter-VLAN routing [Experimental purpose] to learn how to configure svi port on layer 3 switch to realize inter-VLAN routing. [demand analysis] you need to configure VLAN on all switches in the network, and then give the corresponding VLA on the layer 3 switch
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Today, ETU-LINK will talk to you about the mainstream standards of 100G optical modules in data centers. Traditional data centers are mainly based on 10G network architecture. In order to adapt to the large-scale deployment of AI, deep learning, big data computing and other services, the next generation data center architecture is moving to 25G/10.
In the afternoon of 20150915, the company's intranet visited the home page of the main station, the quasi-production environment, and the test environment suddenly became as slow as a turtle. My colleagues in the company suddenly blew up the sky. Did the website be *? many questions erupted like bamboo shoots. As the operation and maintenance and network management, I have the following ideas to solve: does the office network ask?
1. IP address 1. The function of ip address: to uniquely identify a device that surfs the Internet within a certain range (all devices that need to surf the Internet must have an ip address) the expression of ip address: 1. 1010101010001010101010 (pure binary) 2.
Ssl certificate is a kind of security certificate configured in online services, which can improve the security of the website to some extent. If the enterprise wants to improve the security of the website, it can directly apply for the ssl certificate and then configure it to the website server. But how to choose a ssl certificate? In
What is the purpose of the SSL certificate? Why do so many people buy it? what are the benefits of installing it on the website? The editor will tell you about the three major functions of SSL certificates. What is the purpose of the ssl certificate? Now a lot of people will ask this question. Then the editor will tell you. To put it bluntly, ssl is one.
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When we encounter a problem, the first thing we should think about is how to solve the problem, and we should also have a certain understanding of the way to solve the problem, or what kind of result will be presented when the problem arises. Only after understanding these two situations can we solve the specific problems.
As there are many people who write document structure and CSS in the project, and work with programmers, it is necessary to unify the development specification. According to the weaving specifications of XHTMl and CSS and the habits of most people, the following simple development specification for this project is sorted out. I. CSS files and styles
Now the network is progressing so fast that many people will set up their own websites, but now it is the era of big data, and it is easy to leave traces on the websites, so every website will choose to authenticate a ssl certificate to ensure the security of the information transmission of the website. We have talked about cheap SSL certificates before.
Theoretical study question 1: what is the physical composition of a wide area network using DCE and DTE? In WAN connections, such as routers and computers all belong to DTE devices, while CSU/DSU and Modem belong to DCE devices. The clock frequency and signal synchronization are usually provided by the DCE side.
If there is a certain security certificate in the website, it can better protect the information security of the website and prevent the information from being stolen by lawbreakers. Therefore, many enterprises will configure their websites with SSL certificates, but they need to apply for the certificates before configuring them. It is understood that there are many different brands of SSL certificates.
One of the SSL certificate types is "SSL wildcard certificate", which can also be called "pan-domain name certificate". You may be relatively unfamiliar with the SSL wildcard certificate, so here's a detailed introduction to what SSL wildcard certificate is. The first thing you need to understand is that the SSL certificate
Today, the editor shares with you a detailed introduction of the common brand models of the 40G optical fiber module in the form of QSFP+ packaging. I believe most people do not know much about it. In order to make you understand better, the editor has summarized the following content for you. Without saying much, let's move on. 40g QSFP+ optical module
Background: this article is a sequel to "what I did in those years (5)-- decompilation and modification of text in passive code programs". The old version of the program provides automatic online upgrade, but the compiled program retains the old version number, so that the program version number needs to be modified so that it can be upgraded. Objective: to repair
Ssl domain name certificate is a kind of security certificate, which can be configured to the website server, so it is also called server certificate. Nowadays, in order to ensure the security of the website, many enterprises will consider applying for the certificate. However, some enterprises are in a hurry and do not know how long it will take to apply for a ssl domain name certificate.
Juniper DOS classification 1. Network dos1.SYN flooding uses three-way handshakes to deceive * * A sends SYN fragments to B, B responds with SYN/ACK fragments, and A responds with ACK fragments. The source ip in the SYN fragment sent by this kind of An is unreachable
