We are just adding one physical port eth3 in OVS that does not have IP/broadcast associated with it, eth2 still is primary port that has gateway/netmask/IP and default ip route is through eth2.
On Wed, Jul 20, 2016 at 11:54 PM, Scott Lowe <scott.l...@scottlowe.org> wrote: > Please see my responses inline, prefixed by [SL]. > > > > On Jul 20, 2016, at 10:34 PM, chetandeep singh < > chetandeep.sin...@gmail.com> wrote: > > > > Hi Scott, > > > > the idea with this is that with secondary port (no IP assigned) part of > the bridge, and ip routes for all default packets set through primary port. > We can have VM's interact with rest of network by adding taps into the > bridge as well. I have been debugging why pings between host and VM are not > happening and can see packets getting dropped in the bridge itself. > > > [SL] If you are adding multiple physical ports to the same OVS bridge, and > those physical ports belong to the same broadcast domain, then I believe > you're going to create a bridging loop. If you'd like to test to see if > this is the problem, enable STP on the OVS bridge before adding eth3. > > > > On Wed, Jul 20, 2016 at 11:17 PM, Scott Lowe <scott.l...@scottlowe.org> > wrote: > > Please see my response below. > > > > > > > On Jul 20, 2016, at 5:04 PM, chetandeep singh < > chetandeep.sin...@gmail.com> wrote: > > > > > > Hi Ben > > > > > > I have a primary eth port eth2 and secondary Ethernet port eth3 that > does not have any ip assigned to the same. So machine does not get locked > up. The issue is that adding secondary port makes packets to get dropped in > bridge . Any ideas why ? > > > > > > On Wednesday, July 20, 2016, Ben Pfaff <b...@ovn.org> wrote: > > > On Wed, Jul 20, 2016 at 05:45:27PM -0500, chetandeep singh wrote: > > > > I am trying to run some basic setup with OVS like creating a bridge > and > > > > adding taps for VM's in the bridge and a secondary ethernet port and > then > > > > eventually put the machine on the network. What I see is that if I > do below > > > > commands and add secondary eth3 port on the machine in the ovs > bridge, I > > > > see that packets start getting dropped. If I do ifconfig eth3, I > dont see > > > > any drops. > > > > > > > > Any idea why this might be happening in this case ? > > > > > > Forgive me for what seems to be a simple question, but is it possible > you're creating a bridging loop? You indicated that you have a primary port > (eth2) and the drops come when you add a secondary port (eth3), so a > bridging loop seems like a plausible explanation. > > > > Good luck! > > -- > Scott > > -- " In financial markets, the majority is always wrong "
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