Cisco Cisco Aironet 3800e Access Point 시작 가이드

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C45-737165-00  04/16

Flexible Radio Assignment has three different modes of operation:

• 

Default operating mode, which serves clients on both 2.4 GHz  

and 5 GHz

• 

Dual 5-GHz mode, which serves clients on both 5-GHz radios

• 

Wireless security monitoring, which scans both 2.4 GHz and 5 GHz for 

security threats while also serving 5-GHz clients 

How do these features work in an everyday setting?

The best way to describe this feature is by returning to the original 

scenario of a large number of office workers expecting to hear a speech 

from the boss. 

As the first group of workers trickles into the conference room,  

the Cisco Aironet 3800 Series Access Points automatically determine 

that there is ample 2.4-GHz and 5-GHz wireless coverage. During 

the minutes before the meeting, these access points use the wireless 

security-monitoring mode in the 2.4-GHz radio to continually scan 

both bands for RF interference or security threats. Cisco CleanAir® 

Technology eliminates any detected interference while rogue detection 

and containment and wireless intrusion prevention systems (wIPS) 

rectify security threats.

As the meeting looms closer and the high-density scenario is realized, 

Flexible Radio Assignment adapts in real time, and the Cisco access 

point radios provide the precise amount of 2.4-GHz and 5-GHz 

coverage. Some access points will convert both radios to the 5-GHz 

band to serve the additional clients and provide better coverage and 

performance during the high-density event. 

This availability of the larger band is extremely helpful, as a majority of 

the audience is following the video feed of the conference over their 

wireless devices too. 

Following the meeting, the access points return to default operating 

mode, offering 2.4-GHz/5-GHz coverage while other access points 

transition to wireless security monitoring mode. 

The most amazing thing about this scenario is that, as the network 

administrator, you didn’t have to do anything to facilitate the extra 

bandwidth. The Cisco Aironet access point is intelligent enough to  

do the entire thing itself. This allows you to concentrate on more 

pressing issues. 

Flexible Radio Assignment isn’t strictly for workplace environments. 

It can be used in nearly any instance where a large group of people 

gather. Whether it’s in an educational setting, a hotel lobby, or a hospital, 

Flexible Radio Assignment is a boon to any wireless network. 

From bring your own device (BYOD) to Internet-of-Things (IoT) devices, 

the proliferation of wireless items brings a new host of challenges as 

bandwidth-intense applications grow. Flexible Radio Assignment rises 

to these challenges and augments your wireless network to do more 

without making your job difficult. 

Now if only the Flexible Radio Assignment could give Bob from 

accounting some new jokes. 

Putting the ‘Flexible’ in Flexible Radio Assignment

At a Glance