Changes between Version 3 and Version 4 of Internal/OpenFlow/WimaxOpenV

Timestamp:

Sep 20, 2010, 10:24:18 PM (14 years ago)

Author:

ssugrim

Comment:

—

Internal/OpenFlow/WimaxOpenV

@@ -38 +38 @@
 }}}
 
-I'm bascially following [http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Linux;hb=HEAD this guide]
+I'm bascially following [http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Linux;hb=HEAD Linux] and [http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.OpenFlow;hb=HEAD OpenFlow] guides.
 
 The build process went as follows:
 
- 1. I checked for some prerequisites:
+ 1. I checked for some prerequisite apt-packages:
      * pkg-configure
      * libssl-dev
- 1. ./configure in the /opt/openvswitch-1.1.0pre2 (created from untarring the downloaded file). There are config flags but we didn't need them, we 
-    are building with out kernel modules (apparently don't need them, the service will run in userspace). The config.log is included for comparison.
+     * kernel-headers 
+     * build-essential
+ 1. Run configure with kernel flag
+    {{{
+    ./configure --with-l26=/lib/modules/`uname -r`/build
+    }}}
+    It ran from /opt/openvswitch-1.1.0pre2. Built kernel modules since the are Needed for the Openflow Implementation. 
  1. make 
  1. make install
- 1. The final step involves initializing a config database: 
+ 1. Insert the modules
+    {{{
+    insmod datapath/linux-2.6/openvswitch_mod.ko
+    }}}
+    Dmesg should note the addtion of the module:
+    {{{
+    [5343452.547746] Open vSwitch 1.1.0pre2, built Sep 20 2010 17:04:53
+    }}}
+----
+== NOT SURE IF THIS IS NEEDED ==
+
+  The final step of the build involves initializing a config database: 
     {{{
     http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Linux;hb=HEAD
@@ -57 +73 @@
  1. Start the server with this command:
     {{{
-    ovsdb-server /usr/local/etc/ovs-vswitchd.conf.db --remote=punix:/usr/local/var/run/openvswitch/db.sock --private-key=db:SSL,private_key --certificate=db:SSL,certificate --bootstrap-ca-cert=db:SSL,ca_cert &
+    ovsdb-server /usr/local/etc/ovs-vswitchd.conf.db --remote=punix:/usr/local/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,managers --private-key=db:SSL,private_key --certificate=db:SSL,certificate --bootstrap-ca-cert=db:SSL,ca_cert &
     }}}
  1. initialize the database using ovs-vsctl (only needs to be done once)
@@ -67 +83 @@
     ovs-vswitchd unix:/usr/local/var/run/openvswitch/db.sock &
     }}}
+----
 
-Once this is done the switch daemon should be running in userspace. 
+We can create Virtual interfaces with the IP command [http://linux.die.net/man/8/ip IP manual] Something of the form
+{{{
+>ip link add type veth
+}}}
+
+Once this is created, we can add the virtual interface to the open flow switch with ovs-dpctl.
+{{{
+>ovs-dpctl add-dp dp0
+>ovs-dpctl add-if dp0 veth0
+>ovs-dpctl show
+system@dp0:
+        flows: cur:0, soft-max:1024, hard-max:1048576
+        ports: cur:2, max:1024
+        groups: max:16
+        lookups: frags:0, hit:0, missed:12, lost:0
+        queues: max-miss:100, max-action:100
+        port 0: dp0 (internal)
+        port 1: veth0
+
+}}}
+