Category Archives: Wireless

How to Break Your ARM

Cisco’s CleanAir technology uses a custom ASIC-based spectrum analyser built into the Aironet 3500-series Access Point. The system is capable of serving clients while simultaneously detecting and self-healing against sources of interference even 100ft away from the Access Point. In sharp contrast, competitors’ Access Points use simple metrics such as the noise floor from their WiFi chip to self-heal, and these algorithms are only effective when the interference source is nearly right under the Access Point

Self-Healing: Cisco CleanAir vs. Aruba ARM

Non-802.11 sources of interference can completely disrupt WLAN connectivity and cause undue network downtime. Cisco’s CleanAir technology uses a dedicated spectrum analysis ASIC which allows the system to detect, classify and avoid interference within well under a minute. In sharp contrast, Aruba’s ARM uses information from the AP’s Wi-Fi chipset which is not designed to classify or avoid non-802.11 interference.

Cisco CleanAir Demonstration

Brief demonstration of Cisco’s innovate wireless technology that detects RF interference and can self heal and optimise for an 802.11n network.

Cisco CleanAir Technology Mitigates RF Interference and Protects Wireless Performance

Can you spot the offenders in your office?

Cisco Wireless Throughput vs. Distance Test

Another consideration when designing wireless networks is the throughput and distance between the end wireless device and wireless access point.  You may not have visibility of the wireless network characteristics but it is essential this is investigated before you consider deploying unified communications.  A user who has the occasional loss of signal when browsing the internet or picking up email can be acceptable, however a dropped audio or video call will be a different story!!!!

Cisco Wireless Client High Density Test Results

Cisco and Aruba products tested in a high density wireless scenario.  I presented recently about the impact unified communications was having on wireless networks.  This video and some other recent posts certainly will help you gain an understanding of the additional impact unified communications is having on traditional wireless networks.  Certainly today many of us make use of wireless phones, mobile smart phones, id tags as well as the more traditional wireless laptop device so you cannot underestimate how critical wireless has become in the modern enterprise.

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