This is very interesting https://bugs.launchpad.net/neutron/+bug/1376446
On Wed, Nov 9, 2016 at 5:39 PM, Satish Patel <satish....@gmail.com> wrote: > We have DVR setup so if i change path_mtu=1550 in > /etc/neutron/plugins/ml2/ml2_conf.ini and restart neutron services > does that work? > > or do i need to change those setting in controller node? > > On Wed, Nov 9, 2016 at 5:25 PM, Satish Patel <satish....@gmail.com> wrote: >> if i send request direct to server1 and server2 everything works!! but >> if i point my client to LBaaS VIP it doesn't work. >> >> LBaaS running on Network Node and server1 and server2 running on compute >> node. >> >> So LbaaS traffic coming from Network node to compute node over VxLAN >> (overlay) which has 1450 MTU and that is causing issue. If i change >> that MTU to 1500 it works. >> >> On Wed, Nov 9, 2016 at 4:58 PM, Rick Jones <rick.jon...@hpe.com> wrote: >>> On 11/09/2016 08:06 AM, Satish Patel wrote: >>>> >>>> We have 3 node cluster on Mikata openstack and we are using DVR >>>> network. Recently we build two puppetmaster server on openstack and >>>> put them behind Lbaasv2 load-balancer to share load but i found my >>>> none of client able to talk to correctly with puppetmaster server on >>>> openstack. After lots of research found openstack VM use mtu 1400 and >>>> my rest of puppet agent server who are not on openstack they used mtu >>>> 1500. >>>> >>>> as soon as i change puppet agent MTU size to 1400 everything started >>>> working. But just surprised why openstack use 1400 for VM there must >>>> be a reason like vxlan or GRE. >>>> >>>> So for experiment i change mtu 1500 on puppetmaster server on >>>> openstack but it didn't help. How do i fix this issue? >>> >>> >>> What happens if LBaaS isn't between the client and server? >>> >>> Does Puppet do anything with UDP or is it all TCP? >>> >>> rick jones >>> >>> >>> >>> _______________________________________________ >>> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>> Post to : openstack@lists.openstack.org >>> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
