The DHCP option will only change the MTU of interfaces within the instances. You probably don't want to lower the bridge ibtefaces sine the point of lowering instance MTU is to account for GRE / VXLAN overhead going into those bridge interfaces. If you lower everything, you'll still be left with poor inter-instance communication and introduce some funky errors accessing SSL sites from those instances to boot.
-Erik On Feb 8, 2015 3:09 PM, "mad Engineer" <themadengin...@gmail.com> wrote: > Hello all is there any way we can change MTU of all relevant > interfaces of instances,if i set > dhcp-option-force=26,1400 will it change MTU of all relevant > interfaces like qbr qvo br-int etc etc > is there any way to change MTU of all neutron interfaces. > > Thanks > > _______________________________________________ > 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 >
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