Siemens WiPS-200 Series Manual do Utilizador descarregar pdf (Página 2)

Similarly,enterprisesarenotrequiredtopullextraEthernetcablesforadditionalpowerorlimitthe

performanceofAPsbydisablingaradioorfallingbackto2x3or2x2MIMOoperation.

Enterasys Wireless APs use the most sophisticated standards to ensure effective security and

clientcompatibility.Usingthe802.11i(WPA2)standard,wirelessLANdeploymentscanutilize

802.1XorPSKauthenticationandAES,TKIP,orWEPencryption.Theseoptionsensuresecure

authentication and seamless integration of the APs with the wired network infrastructure.

Enterasys Wireless APs work together to prevent interference and optimize RF sharing. Each AP is

able to intelligently and dynamically adjust its transmit power and channel based on information

related to neighboring APs as well as external interference or channel occupation. This ensures

optimalperformanceforallwirelessclients.IfanAPfails,neighboringAPswillincreasepowerto

maintain coverage in the affected area. The APs also support RF channel plan selection with the

optionofsupporting3-channel,4-channelorafullycustomconguration.

802.11n

EnterasysWirelessindoor802.11nAPsareexceptionallypower-efcient,ensuringthatthey

can run on industry-standard802.3afPoEinfrastructure.Many802.11nAPsexceedthepower

consumptionlimitsofthe802.3afstandardspecicationforPoEwhenconguredfor3x3MIMO

onbothradios(Note:AP3605supports2x3MIMOonly).ThesesolutionsdemandtheuseofAC

power adaptors or costly upgrades to pre-standard or proprietary PoE infrastructures to achieve

optimal RF performance.

Exceptionalperformanceisdeliveredutilizingthe3x3statisticaldiversetransmitfunction.

802.11nAPperformancegainsarebestachievedinthe5GHzbandwheremorenon-overlapping

channelsareavailable.Toachievetheoptimal300Mbpsdatarate,theEnterasysWireless

802.11nAPcanbeconguredtousechannelbonding,combiningtwoadjacent20MHz

channelsintoasingle40MHzchannel.Additionally,theEnterasysWireless802.11nAPsare

DFS compliant and can offerupto11non-overlapping,bondedchannelsinthe5GHzband

depending on the regulatory domain. This provides more ﬂexibility when building high-throughput

networksthanwith802.11APswhicharenotDFScompliant,astheyarerestrictedtoonly4non-

overlapping bonded channels.

Plug and Play

Enterasys Wireless Access Points will securely and automatically register with an available wireless

controller and download their conﬁgurations, simplifying deployment and operational effort. APs

can immediately provide service to users without having to be manually conﬁgured.

Adaptive Solutions-Oriented WLAN Architecture

Most WLAN solutions force network administrators to choose between a centralized or distributed

architecture. A signiﬁcant advantage of Enterasys Wireless is that it can support both deployment

models simultaneously, offering signiﬁcant ﬂexibility beneﬁts over other solutions. Network

administrators can assign a topology (centralized or distributed) via policy to an individual user

orgroupofusers.AspecicSSIDcanalsobestaticallymappedtoagiventopologywithoutany

restrictions, so that the wireless LAN infrastructure can efﬁciently adapt to customer-speciﬁc

businessrequirementsandapplications.

Acentralizedarchitecturerequiresalltrafctobebackhauledtoacentralizedcontroller.Withthe

higherdataratesof802.11nAPs,trafcloadsonthewirednetworkcanbemuchgreaterthan

thosecreatedbylegacy802.11a/b/gAPs.DependingonthesizeoftheWLANdeploymentand

how much data is forwarded to the centralized controller, signiﬁcant congestion may result.

A fully distributed deployment eliminates backhauling trafﬁc to a controller but increases the

processingcomplexityforreal-timemobileapplicationsthatrequireseamlesscross-subnetroaming

(e.g.VoWLAN).ThiscanforceITmanagerstoeithercreatealargebroadcastdomainorapply

many VLANs.

With Enterasys Wireless, network administrators are able to create WLAN services and policies,

which together can dynamically assign trafﬁc forwarding rules to users and groups, limit data

Benets(cont.)

Security

• Authenticationandauthorization

functionsincluderole-basedaccess

control(using802.1X,MAC,andcaptive

portal)andauthenticationattheAP

(802.1Xsupplicant)

• Standards-basedencryptionattheAP

(802.11i,WEP,TKIP,WPA,WPA2,WPA-

PSK,WPA2-PSK,andWPA2-AES)

• WirelessIntrusionPrevention(WIPS)

functionsprovidecontinuousscanning,

threatclassication,rogueAPdetection,

andcountermeasuresagainst

possibleattacks

• APpersonalitycanchangetofulltime

andparttimesensorstoperformWireless

IntrusionDetectionandPrevention

(WIPS)foreffectivedetectionand

preventionofrogueAPsandotherthreats

• Integrationofsecuritypolicies(NAC,

IPS)acrossthewired/wirelessnetworks

enablesquickdiagnosingandresolution

ofsecuritythreats

• IntegrationofPolicyManageracross

thewired/wirelessnetworksdynamically

overseesuseraccessatthewireless

networkpointofentry

Support and Service

• Industry-leadingcustomersatisfaction

andrstcallresolutionrates

• Lifetimewarrantyforindooraccesspoints

• Personalizedservices,includingsite

surveys,networkdesign,installation,

andtraining

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