Game, download, chat, video, music, film, news, request, consult materials, remote on-line, etc The Internet cafe employs the network environment of complicated, most difficult management one of most . Especially the control over bandwidth of Internet cafe, because the emergence of application of large bandwidth such as P2P, network visiting, high definition, Web video website, it is more difficult technically. It is Off-The-Shelf QoS technology can problem solving to a great extent,but last Web video at webpage, it is also powerless. The Internet cafe can’t limit the customer’s Net surfing behavior, but should guarantee each customer’s bandwidth rights and interests, how to solve this contradiction? At this moment, ” the router prevails ” Use.
The router QoS of Internet cafe is applied ” The blind spot ”
The router apparatus on the market at present, generally all possess QoS application function, some need to set up manually, some are the automatic management. These Off-The-Shelf QoS technology, though can do bandwidth management according to the network service port, IP letterhead, but because it can only employ doing the same control rule to all Web, if have the bandwidth small, overall bandwidth such as entire Intranet’s webpage, video, game are waned, the speed is all slow; If have the large bandwidth, will be taken up by website’s flowrate of video in the webpage, how much is accounted for more or less, form a bottomless pit to take bandwidth. So no matter QoS rule is had small and having greatly, it is unable to ensure the bandwidth that the general customer of Internet cafe surfs the Net.
Since the Off-The-Shelf QoS function can’t control the flowrate magnitude of video in Web webpage, it by each direct by Web the QoS functions of the videos against,it is can hitting the nail on the head solve by the problem. Chivalrous promise science and technology was put forward ” The router prevails ” Possess such a function – -L7 Web Video QoS, abbreviated as Web QoS, it can solve the problem of management of the similar bandwidth of Internet cafe.
What is ” The router prevails ” ?
The router prevails, it is a new term that has appeared in the industry of the network equipment in the past two years, it can be according to different typological network application behaviors, it takes small distribution spaciously correctly one by one, thus realize ” Distribute according to need ” Optimum efficiency,of new generation for QoS for application technology. The route prevails and was put forward for the first time in 2010 by the chivalrous promise scientific and technological Chairman Li MingTang, purpose is offering a kind of refinement, more high-efficient, more simple and more convenient Intranet management tool to users such as the Internet cafe, enterprise,etc. through the TM and combination of behavioral application management.
” the router prevails ” What advantages can be brought for the Internet cafe?
What kind of application the Internet cafe customer focuses, the owner is unable to forbid guests to use, but need to ensure every guest’s bandwidth rights and interests, the router prevails and was born in comformity with demand of such conflict, it is possessing more careful QoS flowrate control mechanism that the most apparent characteristic of the router prevails, namely increase the intersection of Web QoS and function on the basis of intellectual QoS, let to video, webpage, P2P download software, Off-The-Shelf QoS such as being online and audio-visual employ surface to be further more complete, have filled in Web webpage video blank and blind spot with wide management. So, the chivalrous promise Web QoS can help the Internet cafe to know the bandwidth resources subdivided effectively, let all customers in the Internet cafe have waste enough as well as bandwidth resources.
Fig. 1: Web Video QoS bandwidth management employs the synoptic diagram
Web QoS not only can manage the bandwidth, can also judge according to users’ Net surfing behavior how much bandwidth this is given. For example: The customer of the Internet cafe is browsing through Youku websites, because the flowrate is very large in the open twinkling of an eye of video, will possibly cause the speed that other customers surf the Net to slacken, cause webpages to open very slow problem. Can give video and webpage it assigns sure strips to be spacious and little respectively through Web QoS, the occupied bandwidth of making the video not nip as well as be excess, thus will not influence the speed that other customers surf the Net.
It may serve and set up the bandwidth using with oral application of one end likewise separately, prevent a kind of webpage application from taking up all bandwidth, cause other webpage application delays or unable to use. Can set up reasonable bandwidth constraint to the intersection of webpage and video, let video can with smooth to show, will not lead to the fact because of taking up the large bandwidth instant it is not smooth to have a look around the webpage.
Web QoS can distinguish the video in HTTP webpage employs the bandwidth, and can make the arrangement rule of QoS to Web Video independently, separate video of the webpage from miscellaneous webpage content, it of making sure to divide the tube. Li MingTang points out, the future scientific and technological orientations will all rely mainly on employing the aspect, so in popular part of route, except Web QoS put out at present, can press close to the intersection of user and the intersection of network application and the intersection of Taxi and function, put out more too successively, let the products accord with market demand even more.
Tags: music film, port ip, high definition, automatic management, blind spot, application function
Three exchangers manufacturer will all release the new enhanced products of data centre this week, include the products upgraded to 40Gbps Ethernet in future.
Its first module 10Gbps exchangers of new developing enterprise Arista online publishing, have come out first in the line speed 10G port density.
The software that Extreme releases strengthens the products to allow the customer to manage the virtual machine better, in order to reduce and exchange the quantity of layer in the network of data centre. Force10 declares it will hand over 40Gbps Ethernet exchanger in the second half of this year.
It shows that all these things are released, busy widening it the users Virtual At the range of application, data centre exchange, become the intersection of exchanger and hottest subdividing the market of market continuously. Generally there are thousands of servers in the data centre, each server deposits about about 20 virtual machines, need to increase more bandwidth, management more detailed in granularity, can keep to the control of a large amount of fictitious operating load.
Arista has improved the bandwidth demand with its AN 7500 exchanger. The key exchanger of this framework type is a kind of supplement for there are 1/10G shelf carrying exchangersing.
8 troughs of height 11U 7500, there is 10Tbps that exchanges the capacity, speed L2/L3 10Gbps Ethernet port of 384 lines. The line speed 10G density which this disposition releases before this over Force10, ExaScale E1200 key exchanger of 140 ports – -Though the latter claims to support 420 more extra ports.
The power consumption of 7500 exchangers and each port is 13 watts, to claim is ” most green more ” than it Rival products getting lower 25% still,framework per second throughput, as 5,760 million data packets single. Such outstanding performance, combine with the exchange capacity of 10Tbps, make this exchanger support 40G and 100Gbps Ethernet interface in the future.
Theoretically, the exchange capacity of 10Tbps can make 7500 can support 250 40G Ethernet ports.
Besides E – serial exchangers of Force10, 7500 will also compete with exchangers such as EX8216 of Nexus 7010, Juniper of Cisco and MLX-32 of the rich department,etc. directly.
The starting fare of Arista 7500 is 140,000 dollars, dispose the systematic cost completely probably each line speed port is less than 1200 dollars.
The rival Extreme plans to promote the performance of its existing exchanger with software, the virtual machine helping management to overflow day by day, reducing the network of data centre exchanges the quantity of storey.
XNV software of Extreme aims at allowing the network administrator and manage lifespan to the virtual machining. This software is an additional software module of ExtremeXOS operating system and EPICenter administrative system.
XNV aims at offering automation and parameter of the Internet, is suitable for QoS, ACL, bandwidth speed to limit, and count and statistics of virtual machine. Intention its to want, let physical network – -But not the fictitious exchanger on the server of the blade – -Can control the virtual machine, establish starting point from it until its life ends. This software can offer its exhaustive history, follow situation and report form when the virtual machine is moved in the data centre.
XNV software module will be made available to the users in the third quater of this year, the starting fare is 3000 dollars for 20 nodes.
Tags: rival products, virtual machine, virtual machines, exchange capacity, bandwidth management, ethernet interface