On 6/21/14, 1:52 AM, Peter Grehan wrote:
Hi Cory,
Is there any current support for vde2
None yet.
aside from using vde2_plug2tap?
(Does that even work? I believe vde2 likes to open the tap interface
exclusively. I need to bring up a bhyve test environment to check
fully.)
...
How exactly does the bhyve network stack work through bridging? I'm
imaging it's tying in to bridging APIs?
bhyve uses a tap(4) device. Since that shows up as an ifnet to the
rest of the system, it can be used in any way an ethernet interface
can be used. For bridging, the bridge(4) device is used to join
tap/ethernet interfaces into an L2 bridge.
I'm assuming bhyve-to-bhyve network communication is also possible?
Yes, though currently that is through tap/bridge devices.
I can't imagine it'd be too hard to implement vde2 support for
networking...it'd give me more control over my VMs and give easier
integration with SIMH VMs.
A virtual switch for bhyve would be a useful feature if there
aren't any
plans for one. Get up there and have it in base. ;)
This has been talked about quite a bit, though nothing concrete.
Allowing bhyve to talk to netgraph would instantly give this. I think
you can already do it by
hooking the tap device into the netgraph graph. (I haven't done this
for ages bt it used to work)
at one time virtual box could also use netgraph for its networking.
Not sure if it still can.
Unrelated: any plans for a special bhyve-to-bhyve communication bus?
Not too useful of a feature...I can't think of any use for it off-hand
aside from dedicating a VM to administrating VMs without exposing much
to the host beyond configurations.
There should be code going in soon that allows the netmap VALE
switch to be used for high-speed VM-VM communication. This work also
allows different network back-ends to be written, so it should be a
simple task to drop in a vde2 driver.
later,
Peter.
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