In the LAN technology, the conflict domain and the broadcast domain these two words have the very big influence to the network performance, below lets us see how these two words affect the network performance.
The conflict domain of LAN technology
If you want to drive out of the freeway, but every time you try, there's a car blocking your way. If forced out, co
1st ). Before sending data, each site must first check whether the network is idle and send data if it is idle. Otherwise, continue listening until the network is idle. If the two sites detect that the media is idle and one frame of data is sent at the same time, the data frame conflicts and the data frames of both sites are damaged. At this time, the two sites will use the "Binary Index backoff" method to wait for a random period of time before listening and sending. In Figure 1, host a only
IDC Commentary Network (idcps.com) September 08 reported: According to Registrarstats published real-time data show, as of September 5, 2015, in the global domain name registration market, the number of domain names in the first 15 list and the previous period is exactly the same. Among them, China million net monthly net increase of 96,530, the rate of reduction, the number of
IDC Commentary Network (idcps.com) April 27 Report: According to Dailychanges released the latest data show, as of April 23, 2015, in the global domain name Increment 15, domaincontrol.com to add domain 41, 969 consecutive champions. In addition, the list of Chinese domain name business is still China Wan, dnspod, 51DNS, Western Digital and new network. Among the
First, IntroductionWhen all of the company's hosts are joined to the domain, the first task of the SA is to prevent domain-joined hosts from being controlled from the domain. Let me find that the necessity of the work is a procedural ape, the day before the end of the ban on the implementation of QQ, execution, the next morning to see the guy chatting, it must be
IDC Review Network (idcps.com) February 27: According to the latest data released by Webhosting.info, in the 3rd week of February, it is noteworthy that the world's top 15 Chinese domain name quotient domain names declined. Among them, dnspod net minus 16,762 domain names, the decline in the top 15. Below, please with the IDC Comment Network to pay attention to t
IDC Commentary Network (idcps.com) August 14 reported: According to Dailychanges published real-time data display, as of August 11, 2015, the number of domestic domain name resolution of the first 13 list order, the chain of August 4, no change. Among them, the breakdown of 1, 8 of the Chinese Network and Love name network performance Excellent, the chain on the previous period, the respective net increase of 22,556, 16,482 analytic volume, strong pot
[An arbitration case will not be able to evade the question]
Domain name Dispute Resolution Center [award] CND-2007000028 (http://dndrc.cietac.org)
Number of domain names: 3
Name: Bird's Nest. cn, Bird's Nest. Network, Bird's Nest. Company
Case handler: Concentration
The author of the award: visitors from Malaysia
Expert in this case: 1 horse Visitors 2 Tang Guangliang 3 Chengyongshun
Date of award: 2007-05
Serveralias: Server alias. It can be used in Apache to set the domain name received by the VM or to receive the domain name for wildcard resolution. The specific settings are as follows:
1. Set the VM to receive multiple domain names
A virtual host often receives multiple domain name resolutions, such as a virtual
IDC Commentary Network (idcps.com) September 06: According to the latest data released by Dailychanges, on September 1, 2015, the global domain name resolution new 20 list, the chain of August 25 has changed. Among them, the shortlisted Chinese domain name quotient from 6 to 4, respectively is the Chinese million net, the Dnspod, the new network and the easy name China. Below, please look at the IDC comment
IDC Commentary Network (idcps.com) July 29 reported: According to Registrarstats published real-time data, in July 4th week (2015-07-20 to 2015-07-26), the global domain name new registrations 15 World War, Uniregistrar Corp won the championship with 2,651 new registrations, up 7 from last week. In addition, the finalists of the top 15 Chinese domain names are still easy to name China, China million network
IDC Commentary Network (idcps.com) January 16 reported: According to the domain name statistics agency WEBHOSTING.INFO data show, in 2014, 51DNS as a black horse, all the way through, broke into the domestic domain name quotient of the first three strong domain names. As of December 29, 2014, 51DNS has 1.1 million domain
The JS cross-domain refers to the data transfer or communication between different domains via JS, such as using AJAX to request data from a different domain, or by JS to get the frames (IFRAME) of the different domains in the page. As long as the protocol, domain name, and port are any different, are considered to be different domains.The following table shows t
IDC Commentary Network (idcps.com) March 14 reported: According to Registrarstats published real-time data display, as of March 9, 2016, the global domain name registration market, only foreign domain name Quotient godaddy.com, LLC and enom Domain name Holdings more than 1 , 0, the two superior status, the advantages of no one can. Chinese
Shopping domain name has been a headache for webmaster, a lot of the first webmaster friends in the Internet is so, they do not understand how the domain name should choose to be able to attract the attention of search engines, and they do not know what kind of domain name can cause user friendliness, improve the user's memory, To this day for novice webmaster to
JS Cross-domain is a topic of much discussion. Cross-domain access to IFrame is also well researched.
generally divided into two situations:
One, is the same as the main domain, the different subdomains between the Cross-domain;
With the main domain, different subdomains a
IDC Commentary Network (idcps.com) March 31 reported: According to Dailychanges published real-time data display, as of March 28, 2016, the global domain name quotient domain name resolution of the top 23 rankings, China occupies 6 seats. Among them, China million network ranked best, with 4,731,928 domain name resolution to adhere to the 2nd. On the chain of Mar
IDC Commentary Network (idcps.com) April 08 reported: According to Registrarstats released real-time data show, as of April 5, 2016, the global domain name registration of the 21 World War, China still won 5 seats, respectively, China million network, Yi name China, Western Digital, New network, love name network. On the chain of March 9, the rankings have not changed. Next, the IDC commentary network will bring you the relevant data analysis report.6
idle and send data if it is idle. Otherwise, continue listening until the network is idle. If the two sites detect that the media is idle and one frame of data is sent at the same time, the data frame conflicts and the data frames of both sites are damaged. At this time, the two sites will use the "Binary Index backoff" method to wait for a random period of time before listening and sending. In Figure 1, host A only wants to send A unicast packet to host B. However, due to the broadcast nature
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