Nortel 2350 User Guide

Nortel WLAN—Security Switch 2300 Series Configuration Guide

A Mobility Domain is a system of WSSs and APs working together to support roaming wireless users (clients). Tunnels 
and virtual ports between the WSSs in a Mobility Domain allow users to roam without any disruption to network 
connectivity.

(If your Mobility Domain uses firewalls or access controls between WSSs or AAA servers, see 

 for the ports typically used in a Mobility Domain.) 

A Mobility Domain enables users to roam geographically across the system while maintaining their data sessions and 
VLAN or subnet membership, including IP address, regardless of how the WSSs are attached to the network backbone. 
As users move from one area of a building or campus to another, their association with servers or other resources 
appears the same. 

Nortel recommends that you run the same WSS Software version on all the WSSs 

in a Mobility Domain. 

If the connection between the WSS in a mobility-domain is down and is brought up 

later on, it can take upto 5 minutes for the WSS to connect back again due to exponential 
backoff by the WSS.