From a8e162db2ea1e9b382ce0a43d54bfbc0263bc59e Mon Sep 17 00:00:00 2001
From: theamma <theamma@users.noreply.github.com>
Date: Thu, 1 May 2025 09:21:01 +0200
Subject: [PATCH] Update README.md

---
 README.md | 36 +++++++++++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index fe17b03..f190d39 100644
--- a/README.md
+++ b/README.md
@@ -43,9 +43,9 @@ Turn on the bridge
 
 KVM is used as a hypervisor in this project. You may use virsh on the cli or virt-manager as a graphical tool.
 
-### Create virtual network on hypervisor
+### Create virtual networks on hypervisor
 
-Here we create a new network to be used by the edge router torino by creating a new file named bridged-network.xml with the following content
+Here we create two networks on the hypervisor. The first is used by the edge router impala to connect to the host network, the second is needed by the hosts in the lab network. Create a file named bridged-network.xml with the following content
    
     <network>
         <name>bridged-network</name>
@@ -53,18 +53,40 @@ Here we create a new network to be used by the edge router torino by creating a
         <bridge name="br0" />
     </network>
 
-To create the network on the hypervisor, run
+Then we need the network for the virtual switch served by openvswitch. Create a file named ovs-network.xml with this content
+
+    <network>
+      <name>vSwitch0</name>
+      <forward mode="bridge"/>
+      <bridge name="labbr1"/>
+      <virtualport type='openvswitch'/>
+    </network>
+
+In case you use virsh, you need to run the following commands to create the network on the hypervisor:
 
     $ virsh net-define bridged-network.xml
-
+    $ virsh net-define ovs-network.xml
+    
 Then start it
 
-    $ virsh net-start bridged-network 
-    $ virsh net-autostart bridged-network 
+    $ virsh net-start bridged-network
+    $ virsh net-start vSwitch0
+    $ virsh net-autostart bridged-network
+    $ virsh net-autostart vSwitch0
     $ virsh net-list
      Name              Status   Automatischer Start   Bleibend
     ------------------------------------------------------------
-     bridged-network   Aktiv    ja                    ja##
+     bridged-network   Aktiv    ja                    ja
+     vSwitch0          Aktiv    ja                    ja
+
+On the hosts torino, we need just one interface connected to vSwitch0.
+
+    <interface type="bridge">
+      <source network="vSwitch0" portid="672dad49-ab32-4369-81d3-4a1e7e69b0de" bridge="labbr1"/>
+      <virtualport type="openvswitch"/>
+      <model type="virtio"/>
+    </interface>
+
 ## Torino
 
 Torino is the WAN router of the lab. On the external interface torino acts as a DHCPv6 client in order to receive a Prefix Delegation from the DSL-Router (Fritz!Box in this case). On the internal interface torino will serve Router Advertisements which is necessary for SLAAC. The hosts in the lab environment connectetd to the vSwitch will receive a prefix via SLAAC this way.