Users Guide

Table Of Contents
406 | IP Mobility Dell PowerConnect ArubaOS 5.0 | User Guide
In the WebUI
1. Navigate to the Monitoring > controller > Clients page.
2. Click Status. The mobility state section contains information about the user locations.
In the CLI
show ip mobile trail <ip-address>|<mac-address>
HA Discovery on Association
In normal circumstances a controller performs an HA discovery only when it is aware of the client’s IP address
which it learns through the ARP or any L3 packet from the client. This limitation of learning the client’s IP and
then performing the HA discovery is not effective when the client performs an inter switch move silently (does
not send any data packet when in power save mode). This behavior is commonly seen with various handheld
devices, Wi-Fi phones, etc. This delays HA discovery and eventually resulting in loss of downstream traffic if any
meant for the mobile client.
With HA discovery on association, a controller can perform a HA discovery as soon as the client is associated.
This feature can be enabled using the ha-disc-onassoc parameter in the wlan virtual <ap-
profile> command. By default, this feature is disabled. You can enable this on virtual APs with devices in
power-save mode and requiring mobility. This option will also poll for all potential HAs.
Setting up mobility association using CLI
wlan virtual-ap default ha-disc-onassoc
Advanced Mobility Functions
You can configure various parameters that pertain to mobility functions on a controller in a mobility domain
using either the WebUI or the CLI.
Configuring advanced mobility functions using the WebUI
1. Navigate to the Configuration > Advanced Services > IP Mobility page.
2. Select the Global Parameters tab.
3. Configure your desired IP mobility settings. Table 80 describes the parameters you can configure on the
Global Parameters tab.
Table 80 IP Mobility Configuration Parameters
Parameter Description
General
Encapsulation Supported This parameter shows the type of encapsulation currently supported on the controller.
Clear Trail Entries Clear the station location trail table. You can view entries in this table using the show ip mobile
trail command.
Clear Mobility Counters Clear counters for IP mobility statistics.
Foreign Agent
lifetime Requested lifetime, in seconds, as per RFC 3344, “IP Mobility Support for IPv4”. The range of
allowed values is 10-65534 seconds. The default setting is 180 seconds.
Max. Visitors Allowed Set a maximum allowed number of active visitors. The range of allowed values for this option is 0-
5000 visitors. The default setting is 5000 visitors.