DWDM Trunk-Switching Optical Spectrum Analysis
Help for Monitor Setup window
The EM316-OSW8 Optical Switch can be used with the EM316OSA
(Optical Spectrum Analyzer) to monitor the strength of DWDM
channels from up to eight multiplexed trunks. The
Monitor Setup tab is used to configure background
monitoring of the Rx Power of these channels.
To set up this system, install the two modules into a single
Fiber Driver chassis with an EM316LNXNM-OT management module
and connect the OSW8 Common (port 9) to the OSA Input
(port 2).
Enter this link into the NMS links database by clicking the
Specify Link button for OSW8 port 9 in the Ports Config table.
This will open the Links Management window, where you can also
specify additional links. When finished, click Close and then
Refresh the Monitor Setup window.
Connect the other eight OSW8 switch ports to DWDM trunk
Monitor Ports for monitoring. If desired, you may also
Specify Link from each Switch Port to its
Monitor Port.
Enter the insertion loss for each DWDM trunk into the
Attenuation column for each connected port.
The Samples to Keep field sets the maximum number of database
entries to keep for each DWDM trunk/OSW8 port. When the database is
full, each new sample replaces the oldest entry.
The Sampling Period field sets the wait period in minutes
between polling each DWDM trunk. A value of 60 would poll OSW8
port 1, wait one hour, poll port 2, and so on. Each port would be
polled once every eight hours.
To begin polling, click the Start button. This will begin
scheduled polling. In order to prevent the FiberDriver system from
emitting erroneous SNMP "Trap" Notifications, the NMS will attempt to
suppress the LinkUp/LinkDown and all OSA-related Notifications for the
OSA Input port. If this fails, the user may manually set them from
the OSA Input port's Port Info window, Advanced button, Notifications
tab.
Polling will continue whether this window is opened or closed, until
the Stop button is pressed. At that time the NMS will attempt
to restore all suppressed Notifications. If this fails, the user may
manually set them from the OSA Input port's Port Info window, Advanced
button, Notifications tab.
The results of the background polling will be viewable in the
Monitor Results tab.