We are moving off vmware due to licensing costs and we don’t use vsphere at all
for what we pay for it. So we are looking to go to KVM and using openvswitch
like vmare vswitch. I’m wondering if there is anything special that needs to be
done other then set a vlan tag on a fake bridge interface. I want to have my
layout like
kvm host subnet: 10.10.7.0/24
Then the vlans are like
vlan 2 = 10.10.2.0/24
3 = 10.10.3.0/24
etc..
So on my kvm host I want to have the vlan ports for the lans but not have an ip
on that space attached to the host. Also have guests on those vlans that are
able to talk to other hosts and other guests on other vlans.
I’m not looking to do any layer 3 routing on the openvswitch or anything.. Just
pass everything back to the firewall to do the rules there.
Right now I have something like
root@ubuntu:~# ifconfig
br0 Link encap:Ethernet HWaddr 00:0c:29:bd:22:04
inet addr:10.10.7.10 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:febd:2204/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:515827 errors:0 dropped:0 overruns:0 frame:0
TX packets:95870 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:661622023 (661.6 MB) TX bytes:111551273 (111.5 MB)
br0.2 Link encap:Ethernet HWaddr be:29:ca:d9:77:ec
inet6 addr: fe80::bc29:caff:fed9:77ec/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:126 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:9188 (9.1 KB)
br0.3 Link encap:Ethernet HWaddr 42:d5:1e:03:21:2d
inet6 addr: fe80::40d5:1eff:fe03:212d/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:828 (828.0 B)
eth0 Link encap:Ethernet HWaddr 00:0c:29:bd:22:04
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:614253 errors:0 dropped:0 overruns:0 frame:0
TX packets:137263 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:678858706 (678.8 MB) TX bytes:173171595 (173.1 MB)
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:65536 Metric:1
RX packets:37389 errors:0 dropped:0 overruns:0 frame:0
TX packets:37389 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:107136820 (107.1 MB) TX bytes:107136820 (107.1 MB)
macvtap0 Link encap:Ethernet HWaddr 52:54:00:15:66:ea
inet6 addr: fe80::5054:ff:fe15:66ea/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:116 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:8360 (8.3 KB)
root@ubuntu:~# ovs-vsctl show
fd5477bf-dcaf-4581-b3fa-6b23a90a6506
Bridge "br0"
Port "br0"
trunks: [2, 3, 4, 5, 6, 7, 8]
Interface "br0"
type: internal
Port "br0.2"
tag: 2
Interface "br0.2"
type: internal
Port "br0.3"
tag: 3
Interface "br0.3"
type: internal
Port "eth0"
Interface "eth0"
ovs_version: “2.0.1"
Is that enough and i just tell kvm to use the right br device in bridge mode?
Thanks!
Mike Zupan
Senior Linux Engineer | Recurly
m...@recurly.com
P 917-645-2315
recurly.com (http://recurly.com/)
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