Network Management; Assessment Through A Wlan Site Survey - Avaya Communication Server 1000 Installation And Commissioning Manual

255.255.255.255 commit security acl SpectraLink set security acl map
SpectraLink vlan VLAN120 in set security acl map SpectraLink vlan
VLAN120 out

Network management

Network management is as much strategy and process as it is applications. Managing a
converged network consists of four key phases:
1 Assessment—Network Health Checks and WLAN Site Surveys (post-deployment)
are critical assessment items. The main goal is to verify the ability of the network to
provide voice at the required Quality of Experience (QoE).
2 Predeployment—Before you deploy VoIP handsets, make the network ready by
rolling-out QoS across the network. This phase assumes the WLAN itself is already
deployed.
3 Ongoing monitoring—Regularly monitor the performance of the converged network
to ensure that voice quality continues to meet expectations as the network grows
and evolves over time.
4 Reporting and planning—Keep track of exceptions and problems and form plans to
resolve issues. The resolution of problems takes you back through the assessment,
predeployment (QoS configuration), and monitoring phases again.
Avaya ties this business cycle together seamlessly with a set of products that provide a
comprehensive solution. This solution is comprised of integrated and innovative standards-
based technologies, such as Real Time Control Protocol Extended Reports (RTCP-XR) for
detailed real-time management of calls in progress. The overall solution is referred to as
Proactive Voice Quality Management (PVQM).

Assessment through a WLAN site survey

Technical support for VoWLAN is contingent on customers performing a site survey of the
WLAN. Currently, Avaya recommends the use of the Ekahau Site Survey tool to verify the
network deployment, although other site survey tools are acceptable. The Ekahau product runs
on a PC and uses a WLAN network interface card (NIC) to collect data for analysis. The output
of the tool is a number of robust visualizations of the network. The software verifies the basic
coverage of the network and provides a number of visualizations that are useful for VoWLAN
deployments.
Perform capacity planning using the data rate analysis view, which shows a color-coded view of
the maximum data rate across all APs in the network. With this view, you can see where your
handsets can use the 11 Mb/s data rate as opposed to scaling down to lower rates. Planning
based on data rate can have a big impact on voice-call-capacity planning.
Predict AP selection and roaming using the strongest AP view. This view shows the AP with
the strongest signal for each location in the building and uses color codes for each AP. With
Avaya WLAN IP Telephony Installation and Commissioning

Network management

November 2010 57