Cisco Cisco Aironet 3700i Access Point 백서

 

 

© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 

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HDX is a broad and comprehensive suite of solutions delivered in the Cisco Aironet 2700 and 3700 Series access 

points, consisting of both hardware and custom application-specific integrated circuits (ASICs) and software 

elements to provide optimal performance in high-density WLAN environments. 

Cisco developed HDX to address the increasing proliferation of both wireless networks and wireless devices  

(such as smartphones, tablets, and PCs) carried by individual users - creating increased traffic. HDX directly 

addresses the expectations of both network administrators and mobile device users that WLANs will continue 
to “just work” despite increasingly demanding scenarios. 

In brief, when designing HDX, Cisco carefully considered the ramifications of increases in: 

● 

Access point density (public and residential) 

● 

Co-channel and adjacent channel interference 

● 

Inter-access point contention 

● 

Intra-access point contention (due to more clients and increased upstream) 

● 

Client density 

● 

Variation in client types 

Therefore, HDX is essential for WLANs operating in environments that are characterized by any of the following: 

● 

Many clients connected to a single access point 

● 

Many colocated access points deployed as a single WLAN with partial to full channel (frequency) overlap 

● 

Many independent yet neighboring WLANs needing to coexist in the same spectrum 

● 

Increased loading due to more upstream and downstream video traffic: more FaceTime and Skype traffic 

(bidirectional interactive apps, unified communications), more mobile app downloads, more uploading of 

personal content (photos, cloud/sync functions, etc.) 

The primary features of HDX are: 

● 

Cisco CleanAir

®

 80 MHz 

● 

Cisco ClientLink 3.0 

● 

Optimized Roaming enhanced with BSS Transition Management 

● 

Turbo performance 

● 

Enhancement: Dynamic Bandwidth Selection (with Flexible Dynamic Frequency Selection (FlexDFS)) 

● 

Enhancement: Wi-Fi triggered Event-Driven Radio Resource Management (ED-RRM) 

● 

Enhancement: Air Time Fairness 

● 

RF noise reduction (available in future versions) 

Each of these features is detailed in the sections that follow. 

Cisco is the only equipment vendor to have the complete suite of features that make up HDX. Furthermore, it is the 

only equipment vendor to have a purpose-built access point with hardware acceleration that supports HDX and that 

is designed specifically for the high-performance challenges of 802.11ac.