Enough bandwidth for the network administrator is probably the most troublesome things, on the one hand with the popularity of BT or P2P software, occupy more and more bandwidth, the rogue software, the company network bandwidth occupied more and more unreasonable. On the other hand financial reasons as the company can not apply for too much bandwidth, it can also cause slow network browsing. Both external and internal interference effect enabled the release of bandwidth network administrators are becoming really frustrating.
Where the company is also the author of this, 150 points only through 15Mb fiber, the user was browsing speed is very slow in general, especially to visit the peak at noon, etc., basically any web page can not display time-out will occur. How to solve this problem? I listen to friends using a named NetshineICS cache server, which would have been a step by step to access internet resources, access to the cache server data into an effective bandwidth of saving a great deal.
First, the cache server description
Cache server used to store other users on the network needs of Web pages, documents and so on. This server not only allows users to get what they want to get information, but can reduce the exchange capacity of the network. Often the proxy cache server. For network users, and proxy cache server is not visible in the user all the information appears to come from to visit the site.
Second, the network environment:
Company's core devices CISCO6509, each interface is divided into a VLAN, connection subsidiary. Through various subsidiaries leased telecommunication fiber link, use ATM technology to connect to the head. Although the use of various subsidiaries of telecommunications fiber optic link is 2Mb, intranet access up very fast, but because of the company's total exports is 6509 on the exit velocity is only 15Mb, so the entire company to access external network is very slow. To use a peak of 150 points at the same time thousands of computers to access internet download speed will result in almost 0 problems.
Three solutions:
Even then I am afraid to apply more bandwidth to meet the 150 points is difficult to thousands of computers to access the external network, so I will put aside the bandwidth expansion program. A friend introduced a product called the bandwidth savings of 60%. The product is WebCaching technology.
(1) What is WebCaching:
In recent years, Internet applications at an unprecedented rate, large-scale end users demanding higher bandwidth, without careful management, this bandwidth requirements on Internet service providers would mean high costs, in addition, each one from the bottom of the end-user requests for Internet data will lead to a large number of immeasurable delay, so a slow response speed Internet applications and e-commerce has become so boring and unrealistic.
WebCache is to address these issues, and its end users and the Internet play an intermediary role between an effective WebCache as much as possible in direct response to end-user's request to reduce the number of requests passing through the Internet, and Web browser Cache limited different functions, WebCache use a lot of storage space to service a large number of users simultaneously, thus, WebCache popular Web site can quickly provide the latest data, WebCache can also accelerate the already visited local user access speed of other Web sites For those who demand exceeds the data limit the browser Cache particularly useful for users.
WebCache can provide an effective two key benefits:
1, save the bandwidth of Internet connections
2, reduce the end-user response time
Bandwidth savings on Internet service providers can rapidly produce substantial material savings, reduced end-user response time can effectively improve the user experience on the application of the Internet for e-commerce and information transmission is to "WorldWide wait for the" change for the "WorldWide engine."
(2) WebCaching works:
If not WebCache, end users Web browser will result in Web requests sent through the Internet, because Internet without complicated rules of nature, such a request could lead to incalculable long delay, this delay will result in reduced productivity and low effective e-commerce, on the end user's Internet experience caused boring.
In addition, such a remote Internet request additional bandwidth consumed valuable resources, leading Internet service providers, Internet congestion and the increase in expenditure, WebCache frequently accessed data to provide a convenient storage places, the end user through an internal chain of controllable Road and WebCache connection, and now, if WebCache have saved the latest copy of the required data, Web browser, access can be obtained through WebCache, WebCache sends the data to end users directly, without the need to generate additional Internet request, in addition, WebCache transparent request data from the Internet (whether for data or a request to refresh expired new data), performance benchmarks show that: effective WebCache product provides over 50% bandwidth savings, WebCache deployment can effectively reduce response time and additional bandwidth requirements, and therefore, WebCache for end users and Internet service providers are highly beneficial.
(3) WebCache benefits:
Through a direct response to the data request, a fully effective WebCache reduce end-user response time and Internet service providers need the extra bandwidth, further read, Internet request to reduce help to reduce the load on the remote server, thereby enhancing its services capacity. Thus, the content manager has an important motivation to encourage Cache application.
WebCache Internet hot spots by reducing the content delivery can further improve the quality of service, if a particular Web pages suddenly pop up, when multiple users try to access the page, the "hot spots" will result, (a phenomenon often appear in the "Daily Hot Site" and "Star report"), the page of the original server and its access link may not expect such a large load, so, they will begin to become more and more slowly, or even error, if a page is dynamically when it became popular image of these pages, WebCache to contribute to these accidents, the impact of hot, in fact, as more users access the local copy of the page when, WebCache of Internet bandwidth, will in fact save increased significantly.
In addition, WebCache is the natural place to provide value-added services, such as: content filtering, security, connectivity, etc. transform and statistical collection.
(4) how to apply NetshineICS cache server:
NetshineICS caching server is very simple to use, there are many ways to connect your core equipment. Such as straight and even, or even so. Our company uses and ways to connect with, because we only allow the destination address of the port is 80 by the cache server browsing.
In actual use when the user access point outside the site such as sohu.com, will first check the cache server, cache server will use the information on the local hard disk storage page. When users visit sohu.com more, this visit will be as extracted from the cache server's local hard disk content, and to improve the access speed, bandwidth is a little off.
Summary: know NetshineICS specific works since we can implement the cache server, let us work better. We will save 60% of the bandwidth is not a dream - NetshineICS cache server beta Notes (results article) reader for you IT168 details.