Thanks Jesse, With your inputs, have been able to resolve this issue now.
Thanks Rashmi On Wed, Dec 18, 2013 at 12:39 AM, Jesse Gross <je...@nicira.com> wrote: > You shouldn't include eth0 on M2 and M3 in the bridges. I guess those > are the interfaces that the GRE tunnel is configured over but that's > not necessary since the packets will find the correct interface using > the routing table. If it's another set of interfaces then it will form > a loop. > > On Tue, Dec 17, 2013 at 9:53 AM, Rashmi Rashmi <rashmi....@gmail.com> > wrote: > > Jesse, > > > > > > M2/eth0 is physically connected to M3/eth0. Both these machines are > running > > OVS, and have a GRE tunnel configured between them. > > > > > > M2/eth1 is physically connected to M1/eth0. Here M1 is a client machine, > > whose ping req./resp. are expected to be GRE encapsulated (between M2 & > M3). > > > > For this purpose, I have configured a flow on M2 - to match all pkts > > arriving on eth1 port & with M1-eth0-src-mac. to egress via GRE port > (gre0). > > > > > > Thanks > > > > Rashmi > > > > > > > > On Tue, Dec 17, 2013 at 10:38 PM, Jesse Gross <je...@nicira.com> wrote: > >> > >> On Tue, Dec 17, 2013 at 1:00 AM, Rashmi Rashmi <rashmi....@gmail.com> > >> wrote: > >> > Hello, > >> > > >> > > >> > > >> > I am using a GRE tunnel with OVS. Here is the setup detail: > >> > > >> > > >> > > >> > > >> > > >> > +--------------+ eth0 (11.0.0.2) eth1 +----------------+ eth0 > >> > eth0 +----------------+ > >> > > >> > | M1 (Linux) |-------------------------------------| M2 (Linux) > >> > |-----------------------------------------------| M3 (Linux) | > >> > > >> > +--------------+ > +----------------+ > >> > p0 > >> > (11.0.0.1) p0 (11.0.0.3) +----------------+ > >> > > >> > > >> > gre0 <============> gre0 > >> > > >> > > >> > > >> > I am running OVS (1.9.3) on Machines M2 & M3. > >> > > >> > > >> > > >> > For GRE tunnel between M2 & M3 – > >> > > >> > On pinging 11.0.0.3 from M1, the pkts coming out of M2.eth0 interface > >> > are > >> > GRE encapsulated. But on machine M3, I see that the single > ping-request > >> > pkt > >> > is being looped multiple times. > >> > >> What are eth0/1 connected to on M2 and M3? It sounds like unknown > >> unicast is being flooded over those ports. > > > > >
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