hi stefan. I have setup a VM on a server with two NICs (eth0 and eth1). eth0 is connected with vlan22 and eth1 is connected with vlan33. I then added eth0.22 to br2 and eth1.33 to br3. after that tap2 and tap3 were added to br2 and br3 respectively. When i start up the vm, the network connection is failed if tap2 and tap3 are allocated to this VM while it is ok if i only allocate one tap to this VM. It is shown that the packets were all routed to one NIC. So what is the problem? yi
-- 发自我的网易邮箱手机智能版 在 2015-06-22 20:13:20，"Stefan Hajnoczi" <stefa...@gmail.com> 写道： >On Sat, Jun 20, 2015 at 02:26:29PM +0300, Shmulik Ladkani wrote: >> Currently, MAX_NICS is hardcoded as 8. >> >> Add a configuration option '--net-max-nics' so one can override the >> default. >> Unless specified, default value is kept as 8. >> >> Signed-off-by: Shmulik Ladkani <shmulik.ladk...@ravellosystems.com> >> --- >> configure | 7 +++++++ >> include/net/net.h | 2 +- >> 2 files changed, 8 insertions(+), 1 deletion(-) > >The -device e1000,netdev=tap0,id=e1000-nic0 syntax is preferred to -net >nic syntax and does not have the 8 NIC limit. > >Please use the -device syntax instead of -net. Emulated NICs that >support virtio_net_hdr offload also perform better with the -device >syntax because -net nic does not allow virtio_net_hdr offloads. > >If you think this patch should be merged, please explain the use case.
