Changes between Version 20 and Version 21 of Tutorials/Optical/Mininet Optical Tutorial1

Timestamp:

Jul 27, 2022, 4:02:26 AM (22 months ago)

Author:

lantz

Comment:

—

Tutorials/Optical/Mininet Optical Tutorial1

@@ -445 +445 @@
 
 1. Establish Connection ToR1<->ToR2.
-2. Try `ping` from `server1` to `server3`:
+2. Try `ping` from `server1` to `server2`:
 
 {{{#!shell-session
-mininet-optical> server1 ping 192.168.1.3
-
+mininet-optical> server1 ping 192.168.1.2
 }}}
 
@@ -455 +454 @@
 4. Try `ping` from `server1` to `server3`.
 
+{{{#!shell-session
+mininet-optical> server1 ping 192.168.1.2
+}}}
+
+Observe the slightly longer RTT, reflecting the increased propagation time across two 22km fibers to
+reach the "Central Cloud" data center.
+
+(Note that Mininet-Optical ROADMs are currently modeled using OvS switching in the Linux kernel, so each hop will add some delay that would not be seen on hardware.)
+
 = Shutting down Mininet-Optical =