User's Manual

Tsunami MP.11 2454-R, 5054-R, and 5054-R-LR Installation and Management
Chapter 5. Using the Web Interface 50
Enter the route information and click Add. The IP Address and Subnet Mask combination is validated for a
proper combination.
Note: When adding a new entry, the IP address of the Route Destination must be in either the Ethernet subnet
or in the wireless subnet of the unit.
Click the Edit/Delete Table Entries button to make changes to or delete existing entries.
Edit the route information and click OK. The IP address and subnet mask combination is validated for a proper
combination.
Enable or Disable Roaming
Roaming is a feature by which an SU terminates the session with the current BSU and starts the registration
procedure with another BSU when it finds the quality of the other BSU to be better. Roaming provides MAC level
connectivity to the SU that roams from one BSU to another. Roaming takes place across the range of frequencies
and channel bandwidths (5, 10, or 20 MHz) that are available per configuration. The current release offers
handoff times of up to a maximum of 80 ms. This is fast enough to allow the SU to seamlessly roam from one
BSU to the other therefore supporting session persistence for delay-sensitive applications. The feature also
functions as BSU backup in case the current BSU fails or becomes unavailable.
The Roaming feature lets the SU monitor local SNR and data rate for all frames received from the current BSU.
As long as the average local SNR for the current BSU is greater than the slow scanning threshold, and the
number of retransmitted frames is greater than the slow scanning threshold given in percentage, the SU does not
scan other channels for a better BSU.