Changes between Version 47 and Version 48 of Tutorials/Optical/Mininet Optical Tutorial1

Timestamp:

Jul 27, 2022, 7:51:32 PM (22 months ago)

Author:

lantz

Comment:

—

Tutorials/Optical/Mininet Optical Tutorial1

@@ -176 +176 @@
         # We put 22km of fiber between roadm2 and roadm3
         # Default fiber length is 1m if not specified
-        ...
-        self.wdmLink(roadm2, roadm3, LINEOUT, LINEIN, spans=[22*km])
-        self.wdmLink(roadm3, roadm2, LINEOUT, LINEIN, spans=[22*km])
+        self.wdmLink(roadm4, roadm1, LINEOUT, LINEIN)
+        self.wdmLink(roadm1, roadm4, LINEOUT, LINEIN)
+        self.wdmLink(roadm1, roadm2, DROP+1, ADD+1)  # passthrough
+        self.wdmLink(roadm2, roadm1, DROP+1, ADD+1)  # passthrough
+        # Sub-millisecond delays won't be accurate (due to scheduler timing
+        # granularity and running in a VM) but this will add observable
+        # propagation delay for the longer links.
+        self.wdmLink(roadm2, roadm3, LINEOUT, LINEIN, spans=[22*km], delay='73us')
+        self.wdmLink(roadm3, roadm2, LINEOUT, LINEIN, spans=[22*km], delay='73us')
         ...
         # ROADM add/drop 2 <-> ToR transceiver links