Is your network lasting enough? Chivalrous promise FVR370 passionate motive force
If Internet cafe, enterprise network can’t run enduringly, the scheduling problem that frequent emergence gives up the network, collapses, will cause running off, break of service of enterprise, exchanging the blockage of the customer of Internet cafe online Bring huge losses. Then, why can not the network be lasting? Namely analyze its reason not so steady, the most basic one has a bipunctate: First, key CPU of network equipment punish efficiency to be good, cause the unstability of the network; Second, the personnel of Intranet abuse the network resource, the vulnerability that therefore the virus brought and the attack has caused the network.
Understand the above-mentioned this bipunctates, on the issue that it is solved that can be valid. If Internet cafe and enterprise want to maintain the longevity of the network, first, can adopt and deal with the network equipment with more powerful efficiency, offer the sufficient data for network and transmit motive force; Second, can come to surfing the Net personnel do the division of the network authority through the function module of behavioral management of surfing the Net, guarantee security and health of the network resource. The chivalrous promise FVR370 binuclear router listed in a totally new way, behavioral supervisory function and some other advantage application functions that because possessed binuclear CPU with high capacity and efficiency, surfed the Net at the same time, it is one ” Treat ” This that the network can’t be lasting ” The disease ” Specific prescription.
Binuclear CPU efficiency promotes several times Offer more powerful motive force for Intranet
The chivalrous promise FVR370 adopts MIPS 64 binuclear processors of the inserting type, highest executable 1,200 million orders per second, the intersection of maximum and 200Mbps of transmitting etc. bidirectionally, can support 30,000 piece on-line to count, the intersection of enterprise and the intersection of Intranet and the intersection of maximum and the intersection of quantity and reachable 100~150 PC of bringing etc., built-in 2 WAN and 4 LAN one hundred trillion interface, support pairs of the intersection of outside line and the intersection of bandwidth and assemble, load balancing, the intersection of telecommunication network and coherent the intersection of tactics and the intersection of route,etc. and function.
Need to emphasize emphatically, what FVR370 adopted is 64 MIPS binuclear CPUs, through accelerating the test that is carried on in NAT under the mode, its CPU efficiency can have promotion greatly on the basis of Intel IXP processor.
Fig. 1: FVR370 binuclear CPU efficiency promotes the synoptic diagram
The great amplitude enhancement of CPU efficiency, mean the router machine format to the network transmits faster, reducing the network greatly gets stuck, delays, breaks the chance of the network, will not it happens that the network collapse because of no transmitting in time. To Internet cafe and enterprise, just mean the more quick net visits the data packet, film data packet of high definition to transmit, quick the intersection of network and the intersection of malicious attack and defence respond to, can from tell a part used in Intranet information control and Intranet expand application in being with high capacity and efficiency also at the same time, promote the lasting, stable operation of network in many aspects.
The behavior is managed to surf the Net Create the reliable safety condition for lasting network
If the abuse network resource wantonly of personnel of Intranet of enterprise, P2P download, browse through yellow websites / foreign gambling websites,etc., various Net surfing behaviors have offered the chance to commit a crime for virus, hobbyhorse, cyber attack,etc., operation time think video, chat, convey associated documents the intersection of Net surfing and behavior, while threatening enterprise’s information security, influence operating efficiency seriously too. The behavior controls the function through surfing the Net, can bring a normal and fast Net surfing environment to enterprises, make enterprise resources fully utilized, get a fast, safe, lasting high-efficient network Application Platforms.
Chivalrous the intersection of promise and binuclear the intersection of Net surfing and behavioral supervisory function of FVR370, possess webpage visit restrain from and specific service of preventing from, speculate in shares, blockade, video blockade surf the Net behavioral supervisory function. Operation is very simple, without too many tedious arrangement, it can set up Intranet IP address not limited, humanization very much.
Fig. two: Blockade interface of software for speculation on stocks
Network lasting another big cancer online video, it will lead to the fact network speed when being sometimes fast and sometimes slow serious even will appear network stop up and connection break down etc.. The chivalrous promise FVR370 increases the blockade of the online video newly again on the basis of stopping particular software such as P2P software, QQ, MSN. ,The route of chivalrous promise supports 31 kinds of online video websites such as the potato network, excellent and cool, YouTube at present, offer the valid management scheme for enterprise’s bandwidth resource, has guaranteed the noncongestion with wide circuit of the network, could guarantee network more lasting operation.
Fig. three: Online video blockade interface
Except that the above-mentioned two major mainstreams are blockaded, the behavioral supervisory function of Net surfing of FVR370 is connected with Exe, the file transfer in forms such as Flash, Jpeg, Mp3, Pdf, Png, Rar, Zip,etc. can be controlled and blockaded, may be accomplish all azimuthal supervision to the network.
Tags: motive force, supervisory function, enterprise network, network resource, internet cafe, several times, application functions
Can the data stored on the hard disk of the solid condition guarantee the security?
Do you know? Perhaps the most modish solid condition hard disk is unsafe at present. Few experts think: The data erased and stored on the solid condition hard disk come difficultly more than the data that are erased and stored on the ordinary hard disk.
Discover, guarantee the security is a difficult task for the data that are stored on the solid condition hard disk; Cover or the password is erased seems to be the most effective method to destroy hard disk of the solid condition.
Just before a result of study of university of last week come out, few experts think: The data erased and stored on the solid condition hard disk come difficultly more than the data that are erased and stored on the ordinary hard disk.
The experts are greatly surprised this research, but emphasize it has cryptographic functions that some solid condition hard disks are originally grown on the market, even if can prevent the data inside from being seen after the hard disk scraps; Some solid condition hard disks destroy the method more effectively than others.
The technologist Bruce Schneier of the security says: “I do not think everyone understands this. ”
This research that the researchers of the branch school in San Diego of University of California launch shows, the data which are destroyed the hard disk of the solid condition are a difficult task, even can not almost realize. Though covering the data for several times can guarantee that be able to erase the data on a lot of solid condition hard disks, but researchers find they can resume the data on some products.
Manufacturer of solid condition hard disk controller products of SandForce marketing senior to in charge of Kent Smith, show, can certainly protect on the hard disk of the solid condition a machine format method is that the password is erased cryptographic erasure .
Password erase need, go on encrypting to the hard disk of the solid condition first, if so only by holding the users of the password can it visit the data inside. After the hard disk of the solid condition scraps, users can delete the ciphering key on the hard disk, this excludes the possibility of understanding densely or visiting the data.
Smith says: “Unless you can analyse and explain 128 AES ciphering algorithms, can not obtain the data otherwise at all. The hard disk after scrapping is still a hard disk that can well be used now, can begin the write data again. That is only the time in instant. ”
Tags: controller products, san diego, bruce schneier, university of california, several times
How can guarantee WLAN characteristic is optimized
Though a lot of WLAN managers pay close attention to the fact in problem solving and avoid the safe loophole, WLAN characteristic optimizes and pays attention to the task list even more. Whether this method can not not merely consider thoroughly, and ignore and optimize or cause another factor of the disaster. If each AP only needs to support the flowrate of Net surfing of about ten users, the general characteristic can be accepted, but when AP is close to the heaped capacity and the utility program demand becomes higher, the bandwidth is consumed and the bottleneck will become very serious.
In order to realize WLAN characteristic is optimized, network manager and controller must use the new WLAN measuring and testing tool, they can check the network performance according to utility program type of running in the network. Looking for these tools will force the network administrator to look for more innovative products not including a present supplier and method of testing. Because these tools may be very expensive, their price may be several times higher.
Why need better WLAN performance test and network design?
Er early WLAN is usually according to empirical design, namely adopt circumference of coverage of one AP to show, among them the radius represents minimum signal intensity. Then use, stand spot scanning come, draw actual signal intensity, and with passive scan Or take the initiative ‘ Related Method about measurement. The tool used for carrying out and scanning is manual and labour-intensive; For example have a method require test clerk in carry on two measurement come on, collect passive initiative measuring result on the spot.
Obviously, these methods can’t well go on on bigger WLAN. More important, they can not reflect 802.11n and all kinds of increasingly many reliance actual function of high bandwidth and low delayed utility program. By using 802.11n, the transmission rate of different directions can be controlled, and the signal is strong might not be that one of the characteristic of the utility program can accept the index.
Gaugeable utility program demand of survey tool of WLAN characteristic
This is exactly the place where the new characteristic survey tool specially designed for 802.11n and important mobile service utility program can play a great role. For example, AirMagnet Survey not merely measures up run and link performance of descenting with iPerf, and it can be used for analyzing to offer 802.11n to recommend setting up and the fast pronunciation is assessed.
Veriwave WaveDeploy one comments on and estimates tools the acting station, it can produce test and flow, the hair reaches not only can measure TCP throughput, can still measure ” experience quality ” of Web, pronunciation and video behind the true customer end apparatus . An apparatus to adopt WaveDeploy of Pass The Test, the tester can produce the cover of the area that meet the requirement of the utility program to pursue. This is by measurement index for example, MOS and sound shake of each utility program Determination.
WLNA characteristic optimized: Test of persistent customer end
It is a complicated thing to optimize WLAN characteristic. After WLAN disposes, these new scanning tools should still continue using, in order to prove the performance objective has been satisfied all the time, and assess and plan to adjust and upgrade the influence brought. As time goes on, you may find there are completely different data rate and throughput in different customer end, even if send the same typological flowrate from the nearly identical position and do so.
For example in possible cases, meet abnormal low customer end of data rate, may refuse to roam a better AP. ” the unreasonable one ” The customer end not only throughput is low, but also they need to bring wide holding time to send the data of the same magnitude more. When the bandwidth competition is very fierce, each customer end will be influenced because of this unreasonable customer end. Need to use a piece of displacement means such as AirMagnet WiFi Analyzer at this moment, it can analyze the customer end is roamed and moved, discern unreasonable customer end and them to the characteristic of the utility program for instance, MOS divides Reality influence.
Use the fair algorithm of holding time to carry on RF measurement
Fixed test result course very useful to fine setting, forbid, find, will lead to the fact low the intersection of data rate and customer end that problem take place, or launch the customer and serve useful 802.11n and select. However, some characteristic questions are temporal, and it is and very responsive in the position to make the customer end up. If a visitor takes the problematic apparatus to the office, or just try to use WLAN in farther position, will present a slow customer end to tie down other customer end. The only effective method to deal with this kind of problem is to carry on measurement through real time response constantly.
Some WLAN suppliers have offered at present ” Holding time is fair ” The algorithm, can carry out real-time RF test, and use them to adjust the customer end and transmit the chance automatically. For example, when launching Dynamic Airtime Scheduling of Aerohive, it is assigned to transmit the chance. When the data rate of the customer end begin to drop, more quick customer end can obtain more transmission chances, thus optimize whole throughput. Then Performance Sentinel of Aerohive will concerned with real-time measuring result with each need and actual the intersection of throughput and goal of user these together closely. If SLA is unable to respond to the request that high flux supports customer end, NOC operating personnel will receive the obeying alarm.
WLAN testing tool of integration automation and sectionalization
Finally, most enterprise integration uses automation / centralization and moves / subdivides testing tool and method. As to some tasks, tests and are close to real time adjustment incessantly it is very significant with WLAN and WIPS basic framework. In some large-scale distributed networks that can’t carry on routine test, this method is very valid.
However, as to some other tasks, it is very valuable that the third party or handheld tool remains. The third party can offer one with testing tool ” The onlooker ” View. The displacement means can offer the flexibility to be higher than AP or sensor-based test. Though these tools may all need buying or training extraly, they are very valuable in looking for the loophole, debugging the question or isolating the characteristic question.
Perhaps the most important thing is to avoid short-sightedly, can’t always test your WLAN with products or tool that your supplier offer directly. This market changed fast will change as enterprises WLAN employ increasing.
Tags: testing tool, passive scan, innovative products, high bandwidth, several times, transmission rate, network performance
How is characteristic of Wireless Local Area Network optimized to do
Though a lot of managers of Wireless Local Area Network pay close attention to the fact in problem solving and avoid the safe loophole, but the characteristic of Wireless Local Area Network optimizes and pays attention to the task list even more. Whether this method can not not merely consider thoroughly, and ignore and optimize or cause another factor of the disaster. If each AP only needs to support the flowrate of Net surfing of about ten users, the general characteristic can be accepted, but when AP is close to the heaped capacity and the utility program demand becomes higher, the bandwidth is consumed and the bottleneck will become very serious.
In order to realize the characteristic of Wireless Local Area Network is optimized, network manager and controller must use the new Wireless Local Area Network measuring and testing tool, they can check the network performance according to utility program type of running in the network. Looking for the tool will force the network administrator to look for more innovative products not including present supplier and test method. Because these tools may be very expensive, their price may be several times higher.
Why need better Wireless Local Area Network performance test and network design?
The Er early Wireless Local Area Network is usually according to empirical design, namely adopt circumference of coverage of one AP to show, among them the radius represents minimum signal intensity. Then use, stand spot scanning come, draw actual signal intensity, and with passive scan Or take the initiative ‘ Related Method about measurement. The tool used for carrying out and scanning is manual and labour-intensive; For example have a method require test clerk in carry on two measurement come on, collect passive initiative measuring result on the spot.
Obviously, these methods can’t well go on on bigger Wireless Local Area Network. More important, they can not reflect 802.11n and all kinds of increasingly many reliance actual function of high bandwidth and low delayed utility program. By using 802.11n, the transmission rate of different directions can be controlled, and the signal is strong might not be that one of the characteristic of the utility program can accept the index.
Gaugeable utility program demand of survey tool of the characteristic of Wireless Local Area Network
This is exactly the place where the new characteristic survey tool specially designed for 802.11n and important mobile service utility program can play a great role. For example, AirMagnet Survey not merely measures up run and link performance of descenting with iPerf, and it can be used for analyzing to offer 802.11n to recommend setting up and the fast pronunciation is assessed.
Veriwave WaveDeploy one comments on and estimates tools the acting station, it can produce test and flow, the hair reaches not only can measure TCP throughput, but also can measure ” experience quality ” of Web, pronunciation and video after the true customer end apparatus . An apparatus to adopt WaveDeploy of Pass The Test, the tester can produce the cover of the area that meet the requirement of the utility program to pursue. This is by measurement index for example, MOS and sound shake of each utility program Determination.
Tags: innovative products, signal intensity, network administrator, wireless local area network, empirical design, test method, local area network