Dear All,
I have been struggling to use open-vswitch with VLANs and kvm VMs for
some time. I can create bridges and ports, but my bridge doesn't talk.
Any and all assistance appreciated.
My vital statistics - Host:
* debian wheezy 7.0
* kernel 3.8.4 rebuilt (we have a weird grudge here against loadable
modules, and I was allowed to compile for mods only after long painful
struggles with a module-less kernel)
CONFIG_OPENVSWITCH=y
CONFIG_BRIDGE=m
* Open-vSwitch packages
ii openvswitch-brcompat 1.9.0-0ubuntu1~local1 amd64
Open vSwitch bridge compatibility support
ii openvswitch-common 1.9.0-0ubuntu1~local1 amd64
Open vSwitch common components
ii openvswitch-datapath-source 1.9.0-0ubuntu1~local1 all
Open vSwitch datapath module source - module-assistant version
ii openvswitch-switch 1.9.0-0ubuntu1~local1 amd64
Open vSwitch switch implementations
* lsmod
Module Size Used by
ebt_arp 1666 -2
ebt_ip 1423 -2
ebtable_nat 1767 -2
ebtables 20276 -2
* iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
* relevant bits of /etc/network/interfaces
auto ovsbr0
allow-ovs ovsbr0
iface ovsbr0 inet static
address 101.102.103.253
netmask 255.255.255.0
ovs_type OVSBridge
ovs_ports eth0.78
allow-ovsbr0 eth0.78
iface eth0.78 inet manual
ovs_type OVSPort
ovs_bridge ovsbr0
ovs_options tag=78
* kvm config - relevant bits from guest.xml
<interface type='bridge'>
<mac address='32:3d:5e:00:4f:01'/>
<source bridge='ovsbr0'/>
<virtualport type='openvswitch'>
</virtualport>
<model type='virtio'/>
<filterref filter='clean-traffic'>
<parameter name='IP' value='101.102.103.101'/>
</filterref>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>
* route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.2.4.126 0.0.0.0 UG 0 0 0 eth1.62
10.2.4.64 0.0.0.0 255.255.255.192 U 0 0 0 eth1.62
101.102.103.0 0.0.0.0 255.255.255.0 U 0 0 0 ovsbr0
* ovs-vsctl show
dff187ff-1963-4ee9-b4f8-6aa6439cd7e2
Bridge "ovsbr0"
Port "ovsbr0"
Interface "ovsbr0"
type: internal
Port "eth0.78"
tag: 78
Interface "eth0.78"
ovs_version: "1.9.0"
* ovs-vsctl list-br
ovsbr0
* ovs-vsctl list-ports ovsbr0
eth0.78
Guest:
* debian squeeze 5.0.8
* kernel 2.6.26-2-amd64
* ip ad show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UNKNOWN qlen 1000
link/ether 32:3d:5e:00:4f:01 brd ff:ff:ff:ff:ff:ff
inet 101.102.103.101/24 brd 101.102.103.255 scope global eth0
* route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
101.102.103.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 101.102.103.254 0.0.0.0 UG 0 0 0 eth0
Taking the bridge down and up throws spurious errors, but seems to work.
host> ifdown ovsbr0
Removed VLAN -:eth0.78:-
Cannot find device "eth0.78"
host> ifup ovsbr0
Set name-type for VLAN subsystem. Should be visible in /proc/net/vlan/config
ERROR: trying to add VLAN #78 to IF -:eth0:- error: File exists
But ping - nothing.
I am stumped at the moment. If anyone can see what I am missing, I
would be overjoyed to hear.
TIA
Glen
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