Changes between Version 8 and Version 9 of Internal/OpenFlow/SandBoxSetup

Timestamp:

Jul 16, 2009, 9:01:22 PM (15 years ago)

Author:

akoshibe

Comment:

—

Internal/OpenFlow/SandBoxSetup

@@ -40 +40 @@
 Eth1 should be down because it compromises the routing table.    
 
-== Making the controller from the OpenFlow Reference System Code. (7/15) ==
+== Making the controller from the !OpenFlow Reference System Code. (7/14, 7/15) ==
 The !OpenFlow reference system contains code for a controller that makes an !OpenFlow switch into a learning switch. This was built (but not installed) on the Console by following instructions on the !OpenFlow site: http://www.openflowswitch.org/wk/index.php/Ubuntu_Install 
 
 The console was then configured to be VLAN aware for VLANs 27,28, and 100. The site referenced: http://ubuntuforums.org/showthread.php?t=703387
 
-The interfaces, according to /etc/network/interfaces
+The interfaces looked like this at the end:
 {{{
 # The primary network interface 
@@ -129 +129 @@
 === establishing switch-controller connections ===
 The code for the controller is found intuitively in the controller directory. Using `ptcp:[port]` as the connection method seems to work. 
-we also wanted an output and log of everything, so the full command was this (from the controller's directory) :
+we also wanted an output and a log of everything, so the full command was this (from the controller's directory) :
 
 ./controller ptcp:6633 -v --log-file=test.log
@@ -163 +163 @@
 }}}
 
-    
+=== packet sniffing ===
+The experiment that was packet-sniffed included the following steps: 
  
+ 1. unplug all hosts connected to the virtual switch (VLAN 28 ports) 
+ 1. start the controller
+ 1. plug in one host at a time
 
+tcpdump was used to packet sniff on the VLAN100 interface on SB9 with this command:
 
+ tcpdump -i eth1.100 -w foo.pcap 
+
+Here, the log is saved in foo.pcap. This was later opened in wireshark on another PC (Given X11 didn't break, wireshark on sb9 would would have worked) using the command 
+
+ wireshark -r foo.pcap &
+ 
+Wireshark can be updated with a !OpenFlow dissector that comes with the !OpenFlow reference system. [[BR]] 
+Directions on updating wireshark: http://www.openflowswitch.org/wk/index.php/Ubuntu_Install#Install_Wireshark_Dissector  
+
+The experiment was later recreated with the Sandbox nodes. 
+
+ 1. start packetsniffer 
+ 1. start controller
+ 1. bring nodes up 
+ 1. have one node ping another
+ 1. 60 second idle time
+ 1. ping again 
 
 [[BR]]