User's Manual

SPEEDLAN 9200 User Guide Part # 34357-MNL Rev.03
1-7
SPEEDLAN 9200 routers provide the unique ability to "self-heal" the wireless network as
the topography changes over time, thereby increasing the overall stability and
performance of the network while allowing traffic to reach buildings blocked by
obstructions of line-of-sight.
What is happening in Figure 1-1 on page 1-6?
• You will notice negative numbers next to the routers, or referred to as nodes
on the network diagram. These numbers represent the receive signal strength
(expressed as dBm) for the links in the network diagram.
• The black dots in a mesh network diagram indicate a trace route, which maps
out the current data flow between the selected pair of nodes. A user would
select the trace feature to view the data flow between a node pair (for mesh
networks only).
This illustration also shows that every router in the mesh cell can be heard by
every other router in the cell, except for the blocked link indicating that there is
no signal between those two nodes.
SPEEDView allows you to block traffic over any link in the cell. When you block
a connection, the node pair will not be able to communicate. The advantage
of blocking a connection is verifying that the path can be re-routed for suc-
cessful connectivity. (This is done using the "Block" feature in SPEEDView. The
broken [or disconnected] link will appear as a red line. This link also appears
when there is no signal between two nodes.)
• SPEEDView can also be used to perform bandwidth, link and ping tests.
Routing Around Obstacles
Figure 1-2: Routing around obstacles
Obstacle
A
E
B
C
D