Links
A links connects two nodes in the network and is bi-directional. Each
direction is modeled by a FIFO packet queue with drop-tail policy, and
has the following parameters:
Speed (in packets/second)
Propogation delay (in
seconds)
Buffer size (in packets)
for the queue of outgoing packets
Graphical properties:
thickness and colors
To Add a Link
To add a link between two nodes, select Start Link From Here from
the right mouse button menu command with the cursor on one node,
then select End Link Here with the cursor on the second node, then
fill in the link parameters in the dialog that will appear. To cancel the
link creation, use the Cancel Link command from the right mouse
button menu.
To Delete a Link
Position the right mouse button on the little disc that appears in the
middle of the link, then choose the Delete Link command.
To Change a Link's Properties
Position the right mouse button on the little disc that appears in the
middle of the link, then choose the Properties command. In
the dialog box that appears, for either direction of the link you can change
the parameters.
Cut/Paste Link Properties
To copy all the properties of one link to another link, use the Copy
Style and Paste Style commands from the right mouse button menu.
The Modify Links Command
You can use the Modify Links command from the Productivity
menu to modify the parameters (buffer space, speed, delay) for all links
that meet certain conditions.