Hi, HuntXu
On 2013年05月27日 10:42, huntxu wrote:
On Mon, 27 May 2013 10:30:28 +0800, bill4carson <bill4car...@gmail.com> wrote:
Hi, All
As we konw, ovs-vsctl add-br br0 ; ovs-vsctl add-port br0 is used to create an
bridge and add a port into it
While after I creating several such kind bridges, can I specify how those
bridges are connected to each other
using openvswith to make a simple network topology?
This has been already well documented in the FAQ.
"Q: How do I connect two bridges?" in the Basic Configuration section.
I'm quite new to openvswitch and SDN, so sorry for stupid questions.
Thanks for your info :), I just git pull my tree, found below descriptions:
330 A: First, why do you want to do this? Two connected bridges are not
331 much different from a single bridge, so you might as well just have
332 a single bridge with all your ports on it.
333
334 If you still want to connect two bridges, you can use a pair of
335 patch ports. The following example creates bridges br0 and br1,
336 adds eth0 and tap0 to br0, adds tap1 to br1, and then connects br0
337 and br1 with a pair of patch ports.
338
339 ovs-vsctl add-br br0
340 ovs-vsctl add-port br0 eth0
341 ovs-vsctl add-port br0 tap0
342 ovs-vsctl add-br br1
343 ovs-vsctl add-port br1 tap1
344 ovs-vsctl \
345 -- add-port br0 patch0 \
346 -- set interface patch0 type=patch options:peer=patch1 \
347 -- add-port br1 patch1 \
348 -- set interface patch1 type=patch options:peer=patch0
Actually, I'm afraid this is not what I want, I mean the "patch ports" things.
In my understanding, openvswitch provide means to create an virtual bridge, and
method to add ports into this bridge,
most importantly, virtual machine could use tap interface to attach into this
bridge, which means a remote controller
will be able to manipulate all the flow coming/leaving this bridge's ports as
below:
ovs-ofctl add-flow br0 nw_src=220.181.111.147,actions=drop
In short words, this bridge is isolated from other bridges created in the same
manner, only if we could define how those
bridges are connected to each other, to be more precisely, like connecting
bridge A port x to bridge B port y to make
a network topology much like the real world.
I'm not sure I put my thoughts clearly, and appreciate any inputs through.
--
八百里秦川尘土飞扬,三千万老陕齐吼秦腔。
--bill
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