On Sat, Mar 16, 2013 at 12:06:30AM -0500, Steve wrote:
Here's the issue. I want to communicate between virtual machines, second
Ethernet virtual port. But I would like to use the host loopback for that so
as to not be limited to Ethernet port speeds, for large copies, etc. Right
now, the machine is connected to a 10mbps switch on port 2 and would like to
get far faster transfer speeds when using the so called private LAN. Bridging
eth1 merely limits the speed to 10 Mbps. If it was bridged to the host
loopback, I was hoping it could achieve far faster speeds and also not
saturate the switch.
So, could I make a br1 that is assigned to 127.0.0.1 and then each host can
use that as eth1?--
Guest-guest communication is not affected by physical NIC link speed.
A software bridge with the guest tap interfaces and the host's physical
interface should allow guests to communicate 10 Mbps.
Have you measured the speed of guest-guest networking and found it is
10 Mbps?
If you still experience poor performance, please post your QEMU
command-line, ifconfig -a (on host), and brctl show (on host) output.
Stefan
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