Guidelines For Roaming; Management And Monitoring Capabilities - Proxim AP-4000 User Manual

Introduction

Guidelines for Roaming

– Average utilization (time that a client is actually transferring data) is 10%.
If the conditions on your network are different than the assumptions above, then the maximum number of APs should
be adjusted accordingly.
NOTE: Clients whose traffic must traverse multiple hops in order to reach the portal will have lower throughput than
clients whose traffic traverses fewer hops.
• Although this solution is designed to be flexible and have a short convergence time after a topology change, it is not
recommended for high-speed roaming or a highly dynamic environment.
• The Mesh network assumes that the uplink to the backbone will be provided by Mesh only.
NOTE: To avoid loops, the administrator should not configure alternate links to the backbone through Ethernet or
WDS connections.
• Mesh APs will avoid loops caused by Mesh links; similarly, Spanning Tree will detect and correct loops caused by
WDS and wired links.
NOTE: Neither Mesh APs nor Spanning Tree will detect loops caused by a mixture of Mesh and WDS/wired links.
Administrators should avoid any such scenario while deploying Mesh.
• When VLAN is enabled, all APs in a Mesh network must have the same Management VLAN ID.
For information on configuring Mesh using the HTTP interface, see Mesh. For information on configuring Mesh using the
Command Line Interface
Guidelines for Roaming
• Typical voice network cell coverages vary based on environment. Proxim recommends having a site survey done
professionally to ensure optimal performance. For professional site surveyors, Ekahau™ Site Survey software is
included in the Xtras folder of the Installation CD.
• An AP can only communicate with client devices that support its wireless standards.
• All Access Points must have the same Network Name to support client roaming.
• All workstations with an 802.11 client adapter installed must use either a Network Name of "any" or the same Network
Name as the Access Points that they will roam between. If an AP has Closed System enabled, a client must have the
same Network Name as the Access Point to communicate (see
• All Access Points and clients must have matching security settings to communicate.
• The Access Points' cells should overlap to ensure that there are no gaps in coverage and to ensure that the roaming
client will always have a connection available. To ensure optimal AP placement, Proxim recommends having a site
survey done professionally to ensure optimal performance. For professional site surveyors, Ekahau™ Site Survey
software is included in the Xtras folder of the Installation CD.
• All Access Points in the same vicinity should use a unique, independent channel. By default, the AP automatically
scans for available channels during boot-up but you can also set the channel manually (see
• Access Points that use the same channel should be installed as far away from each other as possible to reduce
potential interference.
• If a Mesh AP switches to a new uplink, by default it will send a deauthentication message to clients connected to it.
Administrators can prevent the sending of this message by disabling the "Notify Clients on Uplink Change" parameter
on the Configure > Interfaces > Mesh > Advanced page.
• In countries that require passive scanning for Mesh, the roam time may be higher.

Management and Monitoring Capabilities

There are several management and monitoring interfaces available to the network administrator to configure and
manage an AP on the network:
(CLI), see Mesh Parameters in the Command Line Interface chapter.
Reboot the
AP-4000/4000M/4900M User Guide
AP.).
Interfaces for details).
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