OpenVswitch is not formally supported in Centos 6.4, why we need to support it 
in CloudStack? Not formally support, I mean, without compile/install 
openvswitch source code, you can't get it work.

> -----Original Message-----
> From: Sheng Yang [mailto:sh...@yasker.org]
> Sent: Thursday, April 25, 2013 3:37 PM
> To: <dev@cloudstack.apache.org>
> Cc: Hugo Trippaers; Edison Su; Manan Shah
> Subject: Re: https://issues.apache.org/jira/browse/CLOUDSTACK-101 Cent
> OS 6.3 OVS support in KVM
>
> I think CentOS 6.4 or Ubuntu based are OK. You can ask Manan for confirm.
>
> --Sheng
>
>
> On Thu, Apr 25, 2013 at 3:33 PM, Angeline Shen
> <angeline.s...@citrix.com>wrote:
>
> > Sheng  :
> >
> > 1.
> > This implies   testing environment for ASC 4.2  isolation PVLAN feature
> > KVM hypervisor will be    CentOS 6.4   based
> > instead of CentOS 6.3  based  for  Xen, vmware .
> >
> > Is this acceptable?
> >
> > 2.
> > Hugo:   if we must have CentOS 6.3 test environment for above feature,
> > what parts of this procedure need be changed?
> > Or do you already  know  that Cent OS 6.3  does NOT support  openvswitch ?
> >
> >
> > Thanks
> >
> >
> >
> > -----Original Message-----
> > From: Hugo Trippaers [mailto:htrippa...@schubergphilis.com]
> > Sent: Thursday, April 25, 2013 2:50 PM
> > To: Angeline Shen; '<dev@cloudstack.apache.org>'; Sheng Yang; Edison
> > Su
> > Subject: RE: https://issues.apache.org/jira/browse/CLOUDSTACK-101 Cent
> > OS
> > 6.3 OVS support in KVM
> >
> > Hey Angeline,
> >
> > > -----Original Message-----
> > > From: Angeline Shen [mailto:angeline.s...@citrix.com]
> > > Sent: donderdag 25 april 2013 23:07
> > > To: Hugo Trippaers; '<dev@cloudstack.apache.org>'; Sheng Yang;
> > > Edison Su
> > > Subject: RE: https://issues.apache.org/jira/browse/CLOUDSTACK-101
> > > Cent OS 6.3 OVS support in KVM
> > >
> > > Hugo:
> > >
> > > 1. Your instructions here are for CentOS 6.4 environment.
> > >
> > > However,  ASF 4.2   Cloudstack   is  currently only supported on CentOS
> > 6.3,
> > > **   NOT CentOS 6.4   **
> > >   Since ASF 4.2 Cloudstack has product features      requiring
> > openvswitch
> > > support ,
> > >  That is why we need to have openvswitch  (1.7.1 probably)  running on
> > > CentOS 6.3   for ASF 4.2 Cloudstack.   **  NOT CENTOS 6.4  **
> > >
> > > Also,  ASF  4.2  Cloudstack  has not been tested on CentOS 6.4 yet.
> > > There are no ASF 4.2  cloudstack builds available  on CentOS 6.4
> >
> > CloudStack 4.2 is perfectly supported on CentOS 6.4. The RPM packages
> > are all developed on CentOS 6.4, so for that matter CentOS 6.3 is less
> > supported ;-)
> >
> > But this is actually irrelevant. CentOS has dropped the release
> > strategy with minor version numbers to a certain degree. If you read
> > my instructions I actually started with a CentOS 6.2 system, running a
> > yum update like regular users would do will upgrade the entire system
> > to the latest version available. CentOS 6 is the actual release and
> > the minor numbers are only place holders for certain releases. You
> > need to upgrade the system to get the latest security fixes and so you will
> end up with a CentOS 6.4 system.
> > CloudStack supports CentOS 6 and has been tested on CentOS 6.
> >
> > >
> > > We need ASF 4.2 Cloudstack openvswitch running and tested  on
> CENTOS
> > > 6.3.
> > >
> > > Therefore I have been installing  libvirt-0.10.1   and
> > openvswitch-1.7.1    on
> > > CentOS 6.3   in CentOS 6.3
> > >
> > > Will your  configurations  work  on CentOS 6.3  ?
> >
> > As explained above there is no actual difference for CentOS 6.3 and
> > 6.4 in setup. So the instructions will work regardless. The only thing
> > you need to be aware of is the kernel version. My instructions
> > regarding compiling openvswitch are specific to the current most
> > recent version of the CentOS 6 kernel. So you need to upgrade at least
> > that to work with these instructions.
> >
> > >
> > >
> > >
> > > 2.   Your instruction  in installing cloudstack-agent:
> > >
> > >         # yum install cloudstack-agent
> > >
> > > What version of cloudstack-agent are you installing?
> > >
> > > Please show content of   your  /etc/repos.d/<repofile>  ?
> > >
> > > There is no cloudstack-agent  on CentOS 6.4 yet.
> >
> > I'm installing from my own repository with cloudstack packages which
> > is updated on every build. I think I used the 4.1 branch here, because
> > that is default in my repo. But there have been no noticeable changes
> > for OVS support in 4.2 yet.
> > >
> > >
> > > 2. What is the section    on            ==============  centos64-
> > > openvswitch.patch     ==========    about?
> >
> > It's a patch I developed to support openvswitch with the latest kernel
> > version of CentOS. The way redhat does kernel updates regularly
> > conflicts with the compatibility settings in openvswitch. You need to
> > apply this patch on openvswitch 1.9.0 to make it compile on the latest
> CentOS 6 kernel.
> > >
> > >
> > > 3. In CentOS 6.3,  only  libvirt-0.9.10  is available.   Cloudstack-agent
> > > installation installs   libvirt-0.9.10
> > >   Therefore I had to install    and overlay    libvirt-0.10.1    over
> > libvirt-0.9.10
> >
> > I used a fully updated CentOS 6.2 release (effectively 6.4). You
> > should consider these instructions for an updated system.
> > >
> > >
> > > 4.   Your response   to my previous email about your openvswitch
> example
> > To
> > > my question of commands  for openswitch  configuration  :
> > > > ovs-vsctl add-br br0
> > > > ovs-vsctl add-port br0 eth1
> > >
> > > The redhat network configuration should take care of creating all
> > > the bridges and linking the ports. But yes the configuration above
> > > should have the same effect as these two commands.
> > >
> > > Do you mean there is  NO NEED to execute  these two  commands at all
> > > as long as the files are configured, Because  these commands are
> > > listed in ACS installation guide for openvswitch configuration, and
> > > upon
> > executing the
> > > Second command  ovs-vsctl add-port  br0  eth1    the host  lost network
> > > connection ?
> >
> > You don't need to execute these commands. Thanks for pointing this
> > out, I'll update the documentation to make this more clear.
> >
> >
> > >
> > >
> > > Thanks
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Hugo Trippaers [mailto:htrippa...@schubergphilis.com]
> > > Sent: Thursday, April 25, 2013 6:19 AM
> > > To: Angeline Shen; '<dev@cloudstack.apache.org>'; Sheng Yang; Edison
> > > Su
> > > Subject: RE: https://issues.apache.org/jira/browse/CLOUDSTACK-101
> > > OVS support in KVM
> > >
> > > Heya,
> > >
> > > Comments inline.
> > >
> > > I ran through the entire procedure I use to test the setup and
> > > documented it as detailed as possible. Hope this helps:
> > >
> > > #
> > > # CentOS KVM installation
> > > #
> > >
> > > Base installation:
> > >         CentOS 6.2 Basic Server
> > >
> > > Upgraded to CentOS 6.4:
> > >         # yum update
> > >
> > > Install Virtualization tools
> > >         # yum groupinstall Virtualization "Virtualization Client"
> > > "Virtualization Platform" "Virtualization Tools"
> > >
> > > Verify Installed:
> > >   hypervkvpd.x86_64 0:0-0.9.el6                    libguestfs.x86_64
> > 1:1.16.34-2.el6
> > > libvirt.x86_64 0:0.10.2-18.el6_4.3
> > >   libvirt-client.x86_64 0:0.10.2-18.el6_4.3
> >  python-virtinst.noarch 0:0.600.0-
> > > 15.el6        qemu-kvm.x86_64 2:0.12.1.2-2.355.0.1.el6.centos.2
> > >   virt-manager.x86_64 0:0.9.0-18.el6               virt-top.x86_64
> > 0:1.0.4-3.15.el6
> > > virt-viewer.x86_64 0:0.5.2-18.el6_4.2
> > >
> > > Modify libvirt configuration:
> > >         Edit /etc/libvirt/libvirtd.conf
> > >                 listen_tls = 0
> > >                 listen_tcp = 1
> > >                 tcp_port = 16059
> > >                 auth_tcp = "none"
> > >                 mdns_adv = 0
> > >
> > >         Edit /etc/sysconfig/libvirtd
> > >                 LIBVIRTD_ARGS="--listen"
> > >
> > > Start libvirtd
> > >    # /etc/init.d/libvirtd start
> > >    # /etc/init.d/libvirtd status
> > >
> > > Verify installation:
> > >   # virsh capabilities
> > >   - Should list two guest tags with os_type hvm
> > >
> > > Build and install openvswitch:
> > >   Install build requirements:
> > >      # yum install rpmdevtools openssl-devel kernel-devel gcc
> > > redhat-rpm- config
> > >
> > >   Build packages:
> > >      # mkdir -p ~/rpmbuild/SOURCES
> > >      # curl -O http://openvswitch.org/releases/openvswitch-1.9.0.tar.gz
> > >          # cp openvswitch-1.9.0.tar.gz ~/rpmbuild/SOURCES
> > >          # cp centos64-openvswitch.patch ~/rpmbuild/SOURCES
> > >          # tar -xzf openvswitch-1.9.0.tar.gz
> > >          # cd openvswitch-1.9.0
> > >          # patch -p1 < ~/rpmbuild/SOURCES/centos64-openvswitch.patch
> > >          # rpmbuild -bb rhel/openvswitch.spec
> > >          # rpmbuild -bb -D "kversion `uname -r`"
> > > rhel/openvswitch-kmod- rhel6.spec
> > >
> > >   Install openvswitch:
> > >     # yum install ~/rpmbuild/RPMS/x86_64/kmod-openvswitch-1.9.0-
> > > 1.el6.x86_64.rpm ~/rpmbuild/RPMS/x86_64/openvswitch-1.9.0-
> > > 1.x86_64.rpm
> > >         # echo 'blacklist bridge' >> /etc/modprobe.d/blacklist.conf
> > >         # reboot
> > >
> > >   Verify installation:
> > >     # lsmod |grep openvswitch
> > >         # ovs-vsctl -V
> > >
> > > Network design:
> > >   cloudbr0 (Management, Storage)
> > >     ip: 172.16.10.10/24
> > >         gateway: 172.16.10.1
> > >         eth0 (physical port, no vlans)
> > >   cloudbr1 (Guest, Public)
> > >     eth1 (physical port, vlan trunk)
> > >         ip: none
> > >
> > > Configure network interfaces:
> > >    /etc/sysconfig/network-scripts/ifcfg-eth0
> > >         DEVICE=eth0
> > >         BOOTPROTO=none
> > >         IPV6INIT=no
> > >         NM_CONTROLLED=no
> > >         ONBOOT=yes
> > >         TYPE=OVSPort
> > >         DEVICETYPE=ovs
> > >         OVS_BRIDGE=cloudbr0
> > >
> > >    /etc/sysconfig/network-scripts/ifcfg-eth1
> > >         DEVICE=eth1
> > >         BOOTPROTO=none
> > >         IPV6INIT=no
> > >         NM_CONTROLLED=no
> > >         ONBOOT=yes
> > >         TYPE=OVSPort
> > >         DEVICETYPE=ovs
> > >         OVS_BRIDGE=cloudbr1
> > >
> > >    /etc/sysconfig/network-scripts/ifcfg-cloudbr0
> > >         DEVICE=cloudbr0
> > >         ONBOOT=yes
> > >         DEVICETYPE=ovs
> > >         TYPE=OVSBridge
> > >         BOOTPROTO=static
> > >         IPADDR=172.16.10.10
> > >         GATEWAY=172.16.10.1
> > >         NETMASK=255.255.255.0
> > >         HOTPLUG=no
> > >
> > >    /etc/sysconfig/network-scripts/ifcfg-cloudbr1
> > >         DEVICE=cloudbr1
> > >         ONBOOT=yes
> > >         DEVICETYPE=ovs
> > >         TYPE=OVSBridge
> > >         BOOTPROTO=none
> > >         HOTPLUG=no
> > >
> > >    /etc/sysconfig/network
> > >     NETWORKING=yes
> > >         HOSTNAME=testkvm1
> > >         GATEWAY=172.10.10.1
> > >
> > > Install cloudstack-agent:
> > >         # yum install cloudstack-agent
> > >
> > > Edit /etc/cloudstack/agent/agent.properties
> > >     network.bridge.type=openvswitch
> > >
> > > libvirt.vif.driver=com.cloud.hypervisor.kvm.resource.OvsVifDriver
> > >
> > > Now add the host to cloudstack.
> > >
> > >
> > >
> > > ================  centos64-openvswitch.patch
> =====================
> > > diff -ru openvswitch-1.9.0-
> > > clean/datapath/linux/compat/include/linux/etherdevice.h openvswitch-
> > > 1.9.0/datapath/linux/compat/include/linux/etherdevice.h
> > > --- openvswitch-1.9.0-
> > > clean/datapath/linux/compat/include/linux/etherdevice.h   2013-02-26
> > > 21:25:37.000000000 +0100
> > > +++ openvswitch-
> 1.9.0/datapath/linux/compat/include/linux/etherdevice.
> > > +++ h
> > > +++ 2013-04-25 10:45:09.942027933 +0200
> > > @@ -4,16 +4,4 @@
> > >  #include <linux/version.h>
> > >  #include_next <linux/etherdevice.h>
> > >
> > > -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) -static inline void
> > > eth_hw_addr_random(struct net_device *dev) -{
> > > -       random_ether_addr(dev->dev_addr);
> > > -}
> > > -#elif LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) -static inline
> > > void eth_hw_addr_random(struct net_device *dev) -{
> > > -       dev_hw_addr_random(dev, dev->dev_addr);
> > > -}
> > > -#endif
> > > -
> > >  #endif
> > > diff -ru openvswitch-1.9.0-
> > > clean/datapath/linux/compat/include/linux/if_vlan.h openvswitch-
> > > 1.9.0/datapath/linux/compat/include/linux/if_vlan.h
> > > ---
> > > openvswitch-1.9.0-clean/datapath/linux/compat/include/linux/if_vlan.
> > > h
> > > 2013-02-26 21:25:37.000000000 +0100
> > > +++ openvswitch-1.9.0/datapath/linux/compat/include/linux/if_vlan.h
> > > 2013-04-25 10:44:33.270023182 +0200
> > > @@ -55,38 +55,4 @@
> > >  #define VLAN_TAG_PRESENT       VLAN_CFI_MASK
> > >  #endif
> > >
> > > -#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) -static inline void
> > > vlan_set_encap_proto(struct sk_buff *skb, struct vlan_hdr *vhdr) -{
> > > -       __be16 proto;
> > > -       unsigned char *rawp;
> > > -
> > > -       /*
> > > -        * Was a VLAN packet, grab the encapsulated protocol, which the
> > layer
> > > -        * three protocols care about.
> > > -        */
> > > -
> > > -       proto = vhdr->h_vlan_encapsulated_proto;
> > > -       if (ntohs(proto) >= 1536) {
> > > -               skb->protocol = proto;
> > > -               return;
> > > -       }
> > > -
> > > -       rawp = skb->data;
> > > -       if (*(unsigned short *) rawp == 0xFFFF)
> > > -               /*
> > > -                * This is a magic hack to spot IPX packets. Older Novell
> > > -                * breaks the protocol design and runs IPX over 802.3
> > without
> > > -                * an 802.2 LLC layer. We look for FFFF which isn't a
> > used
> > > -                * 802.2 SSAP/DSAP. This won't work for fault tolerant
> > netware
> > > -                * but does for the rest.
> > > -                */
> > > -               skb->protocol = htons(ETH_P_802_3);
> > > -       else
> > > -               /*
> > > -                * Real 802.2 LLC
> > > -                */
> > > -               skb->protocol = htons(ETH_P_802_2);
> > > -}
> > > -#endif
> > >  #endif /* linux/if_vlan.h wrapper */ diff -ru openvswitch-1.9.0-
> > > clean/datapath/linux/compat/include/linux/skbuff.h openvswitch-
> > > 1.9.0/datapath/linux/compat/include/linux/skbuff.h
> > > ---
> > > openvswitch-1.9.0-clean/datapath/linux/compat/include/linux/skbuff.h
> > > 2013-02-26 21:25:37.000000000 +0100
> > > +++ openvswitch-1.9.0/datapath/linux/compat/include/linux/skbuff.h
> > > 2013-04-25 10:43:21.167021697 +0200
> > > @@ -245,10 +245,4 @@
> > >  }
> > >  #endif
> > >
> > > -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,40) -static inline void
> > > skb_reset_mac_len(struct sk_buff *skb) -{
> > > -       skb->mac_len = skb->network_header - skb->mac_header;
> > > -}
> > > -#endif
> > >  #endif
> > > diff -ru openvswitch-1.9.0-clean/rhel/openvswitch-kmod-rhel6.spec
> > > openvswitch-1.9.0/rhel/openvswitch-kmod-rhel6.spec
> > > --- openvswitch-1.9.0-clean/rhel/openvswitch-kmod-rhel6.spec
> >  2013-02-26
> > > 21:25:52.000000000 +0100
> > > +++ openvswitch-1.9.0/rhel/openvswitch-kmod-rhel6.spec  2013-04-25
> > > +++ 10:40:41.039023915 +0200
> > > @@ -22,6 +22,7 @@
> > >  Source0:        %{oname}-%{version}.tar.gz
> > >  BuildRoot:      %(mktemp -ud %{_tmppath}/%{name}-%{version}-
> %{release}-
> > > XXXXXX)
> > >  BuildRequires:  %kernel_module_package_buildreqs
> > > +Patch0:                centos64-openvswitch.patch
> > >
> > >  # Without this we get an empty openvswitch-debuginfo package (whose
> > > name  # conflicts with the openvswitch-debuginfo package for OVS
> > > userspace).
> > > @@ -43,6 +44,7 @@
> > >  %prep
> > >
> > >  %setup -n %{oname}-%{version}
> > > +%patch0 -p1
> > >
> > >  %build
> > >  for flavor in %flavors_to_build; do ================
> > > centos64-openvswitch.patch =====================
> > >
> > >
> > > > -----Original Message-----
> > > > From: Angeline Shen [mailto:angeline.s...@citrix.com]
> > > > Sent: Thursday, April 25, 2013 5:31 AM
> > > > To: '<dev@cloudstack.apache.org>'; Hugo Trippaers; Sheng Yang;
> > > > Edison Su
> > > > Subject: RE: https://issues.apache.org/jira/browse/CLOUDSTACK-101
> > > > OVS support in KVM
> > > >
> > > > Hugo:
> > > >
> > > > For your configuration example  :
> > > >
> > > >
> > > > # The physical interface: eth1
> > > > DEVICE=eth1
> > > > BOOTPROTO=none
> > > > HWADDR=BC:30:5B:D4:16:3C
> > > > IPV6INIT=no
> > > > #MTU=1500
> > > > NM_CONTROLLED=no
> > > > ONBOOT=yes
> > > > TYPE=OVSPort
> > > > DEVICETYPE=ovs
> > > > OVS_BRIDGE=br0
> > > >
> > > >
> > > > # The bridge interface: br0
> > > > DEVICE=br0
> > > > ONBOOT=yes
> > > > DEVICETYPE=ovs
> > > > TYPE=OVSBridge
> > > > BOOTPROTO=static
> > > > IPADDR= 10.223.58.195
> > > > GATEWAY = 10.223.58.193
> > > > NETMASK=255.255.255.192
> > > > HOTPLUG=no
> > > >
> > > > QUESTION: will commands to configure openvswitch network
> > > > interfaces be as follows:
> > > >
> > > > ovs-vsctl add-br br0
> > > > ovs-vsctl add-port br0 eth1
> > > >
> > >
> > > The redhat network configuration should take care of creating all
> > > the bridges and linking the ports. But yes the configuration above
> > > should have the same effect as these two commands.
> > >
> > >
> > > >
> > > > Thanks
> > > >
> > > > -----Original Message-----
> > > > From: Angeline Shen
> > > > Sent: Wednesday, April 24, 2013 1:13 PM
> > > > To: <dev@cloudstack.apache.org>; Hugo Trippaers; Sheng Yang;
> > > > Edison Su
> > > > Subject: RE: https://issues.apache.org/jira/browse/CLOUDSTACK-101
> > > > OVS support in KVM
> > > >
> > > > Hugo:
> > > >
> > > > Please review my updates to
> > > > https://issues.apache.org/jira/browse/CLOUDSTACK-101 .
> > > >
> > > > The latest experiment I conducted per your instructions  is as follows:
> > > >
> > > >  ovs  Host    10.223.58.195          gateway     10.223.58.193
> >  other host on
> > > > same gateway but not in ovs setup   10.223.58.194
> > > >
> > > > On ovs host 10.223.58.195 , After I changed
> > > > /etc/sysconfig/network-
> > > > scripts/ifcfg-eth1 and
> > > > /etc/sysconfig/network-scripts/ifcfg-cloudbr
> > > > to your instructions, service network restart ,
> > > >
> > > > the ovs host can now ONLY ping its own gateway 10.223.58.193 and
> > > > any host in same subnet, but CANNOT reach anything beyond the
> > > > gateway 10.223.58.193.
> > > >
> > > > 1. /etc/sysconfig/network-scripts/ifcfg-eth1:
> > > >
> > > > DEVICE=eth1
> > > > BOOTPROTO=none
> > > > HWADDR=BC:30:5B:D4:16:3C
> > > > IPV6INIT=no
> > > > #MTU=1500
> > > > NM_CONTROLLED=no
> > > > ONBOOT=yes
> > > > #TYPE=Ethernet
> > > > TYPE=OVSPort
> > > > DEVICETYPE=ovs
> > > > OVS_BRIDGE=cloudbr
> > > > #UUID="0142ba15-de11-499c-a1ba-82837b30f890"
> > > > #IPADDR=10.223.58.195
> > > > #NETMASK=255.255.255.192
> > > > #GATEWAY=10.223.58.193
> > > > #DNS1=10.223.110.254
> > > > #USERCTL=yes
> > > > #IPV4_FAILURE_FATAL=yes
> > > > #DEFROUTE=yes
> > > > #NAME="System eth1"
> > > >
> > > > 2. /etc/sysconfig/network-scripts/ifcfg-cloudbr:
> > > >
> > > > DEVICE=cloudbr
> > > > ONBOOT=yes
> > > > DEVICETYPE=ovs
> > > > TYPE=OVSBridge
> > > > BOOTPROTO=static
> > > > IPADDR=10.223.58.195
> > > > GATEWAY=10.23.58.193
> > > > NETMASK=255.255.255.0
> > > > HOTPLUG=no
> > > >
> > > > 3. On host 10.223.58.195, service network restart
> > > >
> > > >
> > > > 4. on host 10.223.58.195:
> > > >
> > > > [root@Rack3Host16 ~]# ip route
> > > > 10.223.58.0/24 dev cloudbr proto kernel scope link src
> > > > 10.223.58.195
> > > > 169.254.0.0/16 dev cloud0 proto kernel scope link src 169.254.0.1
> > > > 169.254.0.0/16 dev eth1 scope link metric 1002
> > > > 169.254.0.0/16 dev cloudbr scope link metric 1015
> > > >
> > > > 5. It can reach its gateway & other hosts on same gateway:
> > > >
> > > > [root@Rack3Host16 ~]# ping 10.223.58.193 PING 10.223.58.193
> > > > (10.223.58.193) 56(84) bytes of data.
> > > > 64 bytes from 10.223.58.193: icmp_seq=1 ttl=64 time=7.43 ms
> > > > 64 bytes from 10.223.58.193: icmp_seq=2 ttl=64 time=2.82 ms
> > > > 64 bytes from 10.223.58.193: icmp_seq=3 ttl=64 time=1.06 ms ^C
> > > > --- 10.223.58.193 ping statistics ---
> > > > 3 packets transmitted, 3 received, 0% packet loss, time 2364ms rtt
> > > > min/avg/max/mdev = 1.061/3.771/7.430/2.685 ms
> > > > [root@Rack3Host16 ~]# ping 10.223.58.194 PING 10.223.58.194
> > > > (10.223.58.194) 56(84) bytes of data.
> > > > 64 bytes from 10.223.58.194: icmp_seq=1 ttl=64 time=0.399 ms
> > > > 64 bytes from 10.223.58.194: icmp_seq=2 ttl=64 time=0.181 ms ^C
> > > > --- 10.223.58.194 ping statistics ---
> > > > 2 packets transmitted, 2 received, 0% packet loss, time 1446ms rtt
> > > > min/avg/max/mdev = 0.181/0.290/0.399/0.109 ms
> > > >
> > > > [root@Rack3Host16 ~]# traceroute 10.223.58.194 traceroute to
> > > > 10.223.58.194 (10.223.58.194), 30 hops max, 60 byte packets
> > > >  1 10.223.58.194 (10.223.58.194) 0.922 ms 0.851 ms 0.830 ms
> > > >
> > > > [root@Rack3Host16 ~]# traceroute 10.223.58.193 traceroute to
> > > > 10.223.58.193 (10.223.58.193), 30 hops max, 60 byte packets
> > > >  1 10.223.58.193 (10.223.58.193) 7.017 ms 12.506 ms 7.675 ms
> > > >
> > > > 6. host CANNOT reach anything outside of its subnet:
> > > >
> > > > [root@Rack3Host16 ~]# ping 10.223.195.114
> > > > connect: Network is unreachable
> > > >
> > > > [root@Rack3Host16 ~]# ping www.google.com
> > > > ping: unknown host www.google.com
> > > >
> > > > [root@Rack3Host16 ~]# ping 8.8.8.8
> > > > connect: Network is unreachable
> > > >
> > > > [root@Rack3Host16 ~]# traceroute 8.8.8.8 traceroute to 8.8.8.8
> > > > (8.8.8.8), 30 hops max, 60 byte packets
> > > > connect: Network is unreachable
> > > >
> > > > 7. [root@Rack3Host16 ~]# ifconfig
> > > > cloudbr Link encap:Ethernet HWaddr BC:30:5B:D4:16:3C
> > > >           inet addr:10.223.58.195 Bcast:10.223.58.255
> > Mask:255.255.255.0
> > > >           inet6 addr: fc00:2::be30:5bff:fed4:163c/64 Scope:Global
> > > >           inet6 addr: fe80::68f7:52ff:fe03:a744/64 Scope:Link
> > > >           UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500
> Metric:1
> > > >           RX packets:46945 errors:0 dropped:0 overruns:0 frame:0
> > > >           TX packets:549 errors:0 dropped:0 overruns:0 carrier:0
> > > >           collisions:0 txqueuelen:0
> > > >           RX bytes:39235509 (37.4 MiB) TX bytes:102773 (100.3 KiB)
> > > >
> > > > cloud0 Link encap:Ethernet HWaddr AA:81:04:5F:5E:4A
> > > >           inet addr:169.254.0.1 Bcast:169.254.255.255 Mask:255.255.0.0
> > > >           inet6 addr: fe80::a881:4ff:fe5f:5e4a/64 Scope:Link
> > > >           UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > > >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > > >           TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
> > > >           collisions:0 txqueuelen:0
> > > >           RX bytes:0 (0.0 b) TX bytes:4201 (4.1 KiB)
> > > >
> > > > eth1 Link encap:Ethernet HWaddr BC:30:5B:D4:16:3C
> > > >           inet6 addr: fe80::be30:5bff:fed4:163c/64 Scope:Link
> > > >           UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500
> Metric:1
> > > >           RX packets:48123 errors:0 dropped:0 overruns:0 frame:0
> > > >           TX packets:532 errors:0 dropped:0 overruns:0 carrier:0
> > > >           collisions:0 txqueuelen:1000
> > > >           RX bytes:39518352 (37.6 MiB) TX bytes:101960 (99.5 KiB)
> > > >           Interrupt:16 Memory:da000000-da012800
> > > >
> > > > lo Link encap:Local Loopback
> > > >           inet addr:127.0.0.1 Mask:255.0.0.0
> > > >           inet6 addr: ::1/128 Scope:Host
> > > >           UP LOOPBACK RUNNING MTU:16436 Metric:1
> > > >           RX packets:340 errors:0 dropped:0 overruns:0 frame:0
> > > >           TX packets:340 errors:0 dropped:0 overruns:0 carrier:0
> > > >           collisions:0 txqueuelen:0
> > > >           RX bytes:46264 (45.1 KiB) TX bytes:46264 (45.1 KiB)
> > > >
> > > > 8. [root@Rack3Host16 ~]# brctl show bridge name bridge id STP
> > > > enabled interfaces
> > > > cloud0 /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > /sys/class/net/cloud0/bridge: No such file or directory
> > > > 0000.aa81045f5e4a no cloudbr /sys/class/net/cloudbr/bridge: No
> > > > such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > /sys/class/net/cloudbr/bridge: No such file or directory
> > > > 0000.bc305bd4163c no
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: Sheng Yang [mailto:sh...@yasker.org]
> > > > Sent: Wednesday, April 24, 2013 12:59 PM
> > > > To: Hugo Trippaers
> > > > Cc: <dev@cloudstack.apache.org>
> > > > Subject: Re: https://issues.apache.org/jira/browse/CLOUDSTACK-101
> > > > OVS support in KVM
> > > >
> > > > Thank you Hugo!
> > > >
> > > > --Sheng
> > > >
> > > >
> > > > On Wed, Apr 24, 2013 at 12:16 PM, Hugo Trippaers <
> > > > htrippa...@schubergphilis.com> wrote:
> > > >
> > > > >  Hey Sheng,
> > > > >
> > > > >  Sure thing, I'm trying to help Angeline already, but it's quite
> > > > > a complex setup.
> > > > >
> > > > >  I'll try to write down some detailed instructions.
> > > > >
> > > > >  Cheers,
> > > > >
> > > > >  Hugo
> > > > >
> > > > > Sent from my iPhone
> > > > >
> > > > > On 24 apr. 2013, at 19:56, "Sheng Yang" <sh...@yasker.org> wrote:
> > > > >
> > > > >   Hi Hugo,
> > > > >
> > > > >  Could you help with KVM OVS setup? I cannot find much
> > > > > information on the our wiki about OVS on KVM.
> > > > >
> > > > >  --Sheng
> > > > >
> > > > >  On Fri, Apr 19, 2013 at 8:14 PM, Angeline Shen
> > > > <angeline.s...@citrix.com>wrote:
> > > > >
> > > > >> ASF 4.1  cloudstack  with openvswitch  support  for   RHEL 6.3
> > KVM test
> > > > >>  configuration setup:
> > > > >>
> > > > >> After completing
> > > > >> http://nullworks.wordpress.com/2012/09/19/kvm-and-
> openvswitch-
> > > on-
> > > > cent
> > > > >> os-6-3-minimal/  to setup RHEL 6.3 openvswitch, encountered
> > > > >> following
> > > > >> problems:
> > > > >>
> > > > >> 1. In this scenario, after service openvswitch start, host is
> > > > >> still up running but completely lost connection to network.
> > > > >>
> > > > >> [root@Rack3Host16 /]# service openvswitch start Inserting
> > > > >> brcompat module [ OK ] Starting ovsdb-server [ OK ] Configuring
> > > > >> Open vSwitch system IDs [ OK ] Starting ovs-vswitchd [ OK ]
> > > > >> Starting ovs-brcompatd [ OK ] iptables already has a rule for
> > > > >> gre, not explicitly
> > > enabling.
> > > > >> [root@Rack3Host16 /]#
> > > > >>
> > > > >>
> > > > >> 2. content of various files:
> > > > >>
> > > > >> /etc/sysconfig/network-scripts/ifcfg-ovsbr1 :
> > > > >> DEVICE=ovsbr1
> > > > >> ONBOOT=yes
> > > > >> DEVICETYPE=ovs
> > > > >> TYPE=OVSBridge
> > > > >> BOOTPROTO=static
> > > > >> IPADDR=10.223.58.195
> > > > >> GATEWAY=10.223.58.193
> > > > >> NETMASK=255.255.255.0
> > > > >> HOTPLUG=no
> > > > >>
> > > > >>
> > > > >> QUESTION:    Is
> > > > >> http://nullworks.wordpress.com/2012/09/19/kvm-and-
> openvswitch-
> > > on-
> > > > centos-6-3-minimal/
> > > > >>         Valid configuration instructions for   openvswitch   RHEL
> > 6.3
> > > > >>  or are there other updated  correct configuration steps?
> > > > >>
> > > > >> Thanks
> > > > >>
> > > > >>
> > > > >
> >

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