The document discusses the specifications and communication methodology for the ULMAN GUI. The GUI is required to implement communications and control functions, network monitoring, log file functions, and statistics analysis. It communicates securely with ULMAN wireless nodes using SSH and SCP for file transfers. Each node runs an SSH daemon while the super node runs an SSH client as a backend service for the GUI.

1. Wireless Access Research
Adil Raja April 2005
ULMAN GUI Specifications
• The ULMAN GUI is required to implement the following
features.
1. Communications & Control Functions.
2. Monitoring of Network
3. Log File Functions
4. Statistics and Analysis Functions

2. Wireless Access Research
Adil Raja April 2005
ULMAN GUI – Communication
Methodology
• In order to implement the above functionality the GUI
should be able to communicate with the ULMAN wireless
nodes.
• Secure Shell is chosen as the desired service for this
purpose.
• In order to carry out file transfers between the super
node and the wireless nodes, scp is used.

3. Wireless Access Research
Adil Raja April 2005
ULMAN GUI – Communication
Methodology(continued)
• This is accomplished by running a ssh daemon on each
of the mobile nodes.
• An ssh client is run on the super node which runs as a
back end service for the ULMAN GUI.

4. Wireless Access Research
Adil Raja April 2005
PROCESS INTERACTION BLOCK
DIAGRAM
ULMAN GUI
SSH Client
Statistical Functions Log File Functions Control Functions
SCP Client
Communication Clients
Network Monitoring
Tools
Communication Server
SSH Server
Control
Applications
Routing
Tables
Node
Statistics
ULMAN WIRELESS NODE
ULMAN CONTROLLER