The ONL Tutorial
Recipes (The Remote Laboratory Interface)
The recipes below are referenced by Web pages in this section on
The Remote Laboratory Interface.
If you want to refer to them as you go through the tutorial pages,
open up a second browser window and follow a recipe while you read
through the main part of the tutorial in the original browser window.
Basic Monitoring
Below is the recipe for the monitoring example which
uses default route tables.
Reply Packets on the Bottom Inter-NSP Link
- Turn off Distributed Queueing (DQ)
The DQ algorithm prevents output port overload but generates
extra traffic that will hide the ping traffic that we want
to observe.
- Select NSP 1 => Queueing
The Queueing panel will appear.
- Uncheck the Distributed Queueing On box
- Select Enter
- Set the default polling period
This will change the default polling period from 1 second
to 0.25 second for all polling period dialogue boxes.
Most monitoring is done at a polling period of 1 sec, but
0.25 seconds will show the ping traffic as spikes (one per
packet) rather than a horizontal line.
- Select Monitoring => Set Default Polling Period
A Change Default Polling Rate dialogue box appears.
- Enter 0.25 in the Enter Polling Rate secs: box
- Select Enter
- Monitoring 1.6 to 2.7 Traffic
This will display the bandwidth leaving OPP 6 at NSP 1
(Output Port Processor 6).
- Select NSP 1, Port 6 => Egress => Bandwidth
The Add Parameter dialogue box will appear.
If there are no monitoring panels open,
starting this first monitoring plot will open up a monitoring
panel with a default title (Display0).
Otherwise, you should first open up a blank monitoring panel
by selecting Monitoring => Add Monitoring Display.
- Select Enter to accept the default 0.25 second
polling period
- Monitoring 1.2 to 1.6 Traffic
This will display the bandwidth leaving IPP 2 for OPP 6 at NSP 1
in the same monitoring panel as the 1.6 to 2.7 traffic.
- Select NSP 1, Port 2 => Ingress => Bandwidth to OPP
The Add Parameter dialogue box will appear.
- Enter 6 in the to port box
This is traffic going to port 6.
- Select Enter
- Monitoring 2.6 to 1.7 Traffic
This will display the bandwidth enterring IPP 7 at NSP 1.
- Select NSP 1, Port 6 => Ingress => Bandwidth
- Finish as before with a polling period of 0.25 seconds.
- Monitoring 1.7 to 1.2 Traffic
This will display the bandwidth leaving IPP 7 at NSP 1.
- Select NSP 1, Port 7 => Ingress => Bandwidth to OPP
- Enter 2 in the to port box
- Finish as before with a polling period of 0.25 seconds.
Revised: Thu, July 6, 2006