Re: [ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-17 Thread Ben Pfaff
The issue is just the lack of packet buffering. To fix it, we need to implement packet buffering somehow. On Sat, Mar 17, 2018 at 08:15:17AM +0800, Guoshuai Li wrote: > What about add an incomplete(only ip, no mac) Mac_binding when configuring > the route's nexthop? > > Similar to the linux syst

Re: [ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-16 Thread Guoshuai Li
What about add an incomplete(only ip, no mac) Mac_binding when configuring the route's nexthop? Similar to the linux system: # arp -n 10.157.0.253 (incomplete) eth0 Then ovn-controller sends an arp request for this? When this icmp is sent, the arp has already been requested. It's currently p

Re: [ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-16 Thread Ben Pfaff
It's currently part of the design but it's not great for users, so it'd be nice to fix it someday and I'd be pleased to hear proposals if anyone wants to work on this. On Fri, Mar 16, 2018 at 04:39:35PM +0530, Numan Siddique wrote: > Hi Jai, > > This is by design. For any IP packet which goes thr

Re: [ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-16 Thread jai rana
Thanks Numan for quick response. This is really helpful. Regards, Jai > On 16-Mar-2018, at 4:39 PM, Numan Siddique wrote: > > Hi Jai, > > This is by design. For any IP packet which goes through the logical router > pipeline, if OVN doesn't know the mac of next hop, it learns it by generating

Re: [ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-16 Thread Numan Siddique
Hi Jai, This is by design. For any IP packet which goes through the logical router pipeline, if OVN doesn't know the mac of next hop, it learns it by generating an ARP request packet replacing the original IP packet. That's the reason why the first ping is always dropped. You can run "ovn-sbctl l

[ovs-discuss] ping loss of first packet with OVN l3 logical router.

2018-03-16 Thread Jai Singh Rana
Hi All, I have configured OVN L3 logical router for external traffic with 3 host native ovs/ovn setup.When pinging from VM to external network for the first time after bringing up ovn l3 router , there is ping loss of first packet. Afterwards everything works fine even if pinging after some interv