[ovs-discuss] [Solved][Bug] flow deletion before transmission end - transmission stalled

Christian Fischer christian.fischer at easterngraphics.com
Tue Nov 30 19:38:54 UTC 2010


On Tuesday 30 November 2010 19:28:07 Ben Pfaff wrote:
> On Tue, Nov 30, 2010 at 09:18:43AM +0100, Christian Fischer wrote:
> > On Saturday 27 November 2010 23:52:20 Ben Pfaff wrote:
> > > Was the problem and solution anything worth documenting so that we
> > > could help others to avoid this problem in the future?
> > 
> > the problem was self made.
> > Having the same mtu for physical interfaces like the virtual interface
> > mtu (ovs, both 1500) isn't a good idea if one likes to use VLANs. 1518
> > is a reasonable value.
> > 
> > Well, both, mtu_setting() from InterfaceReconfigure.py and ovs-vsctl
> > add port, have configured 1500 bytes, but I haven't verified the
> > settings, and therefore it was my fault.
> 
> I'm surprised that this was necessary.  Most NIC drivers allow an extra
> 4 bytes when a VLAN tag is present.  What driver does your NIC use?

e1000e: Intel(R) PRO/1000 Network Driver - 1.1.2-NAPI




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