Month: October 2014

CCNP Wireless CUWSS 642-732 Summary Notes 1 : Site Survey Requirements for Different Vertical Industries

A site survey is a task-by-task process in which the surveyor studies the facility to understand the RF behavior, discovers RF coverage areas, checks for RF interference, and determines the appropriate placement of wireless devices. Top considerations: Identify Customer Requirements  and his expectations. What type of environment? Consider the regulatory issues for that particular site Asses the … Continue reading CCNP Wireless CUWSS 642-732 Summary Notes 1 : Site Survey Requirements for Different Vertical Industries →

Cisco Prime: Unit of Measurement for Maps ( Meters and Feet)

Thought I would put up a quick post regarding unit of measurements for the Maps. CPI comes with feet as the default unit and this can be an issue for countries that use meters. I could always recalculate my length in meters and input it in CPI until a client made a rather rude comment … Continue reading Cisco Prime: Unit of Measurement for Maps ( Meters and Feet) →

Cisco Wireless: MSE Patch for Bash Code Injection Vulnerability , aka Shellshock [(CVE-2014-6271, CVE-2014-7169]

Download the patch from Cisco.com Backup the MSE via cisco prime. Refer to my post step 12 and 13 Cisco Wireless: Upgrading MSE from v7.5 to v8.0 via Cisco Prime SSH to the MSE Stop the MSE software  Copy the downloaded file, mse-bash-patch.zip to the /tmp directory on MSE  Login to the MSE as root … Continue reading Cisco Wireless: MSE Patch for Bash Code Injection Vulnerability , aka Shellshock [(CVE-2014-6271, CVE-2014-7169] →

Cisco Wireless: Upgrading MSE from v7.5 to v8.0 via Cisco Prime

Release Notes HighLights Refer to Release Notes for Cisco Mobility Services Engine, Release 8.0.100.0 Compatibility Matrix for version 8.0 Do not run uninstall on the 7.4, 7.5, or 7.6 Release, instead stop the MSE and directly run the installer. Upgrade Process Download the 8.0.100.0 software image from Cisco.com. The file to be downloaded is Verify … Continue reading Cisco Wireless: Upgrading MSE from v7.5 to v8.0 via Cisco Prime →

CWNA Summary Notes: Coverage Analysis Methods

Manual Site Survey Passive manual survey - The radio card collects RF measurements but the client adapter is not associated to the access point during the survey, and all information is received from radio signals that exist at layer 1. Active manual survey - the radio card is associated to the access point and has layer 2 connectively, allowing … Continue reading CWNA Summary Notes: Coverage Analysis Methods →

CWNA Summary Notes: Site Survey Tools

Indoor Site Surveys Tools Spectrum analyzer for RF spectrum analysis Blueprints or floor plans of the facility Received signal strength measurement tool 802.11 client card - prefer the vendor that will be deployed AP - preferably 2. Battery pack for AP and for the laptop Binoculars to view distant objects ( eg high ceiling and in … Continue reading CWNA Summary Notes: Site Survey Tools →

CWNA Summary Notes: Spectrum and Coverage Analysis

Spectrum Analysis A noisy environment can cause the data in 802.11 transmissions to become corrupted -> the cyclic redundancy check (CRC) will fail -> the receiving 802.11 radio will not send an ACK frame to the transmitting 802.11 radio -> the unicast frame is not acknowledged and will have to be re-transmitted. Wi-Fi data networks can handle a retransmission rate … Continue reading CWNA Summary Notes: Spectrum and Coverage Analysis →

CWNA Summary Notes: Vertical Market Considerations

A vertical market is a particular industry or group of businesses in which similar products or services are developed and marketed. Outdoor Surveys Weather proof APs (eg ruggedized) may need to be deployed. Site Survey kits with Mesh APs may be needed. Consider the weather conditions. Most appliances will need to be protected from weather elements … Continue reading CWNA Summary Notes: Vertical Market Considerations →

CWNA Summary Notes: Capacity and Coverage Requirements

Capacity and Coverage Requirements Factors that should be considered when planning for Capacity: Data applications. For 802.11b/g network, 12 to 15 data users per AP ForVoWiFi SpectraLink recommends max of 12 calls per 11 Mbps cell (with 1 call needing 4.5 % of AP bandwidth), 7 calls per 2 Mbps (with 1 call needing 12% … Continue reading CWNA Summary Notes: Capacity and Coverage Requirements →