When these are OVS patch ports you don’t need to worry about their MTU – packets don’t actually flow through patch ports. In the past there was an option to use veth pairs between bridges and there was a parameter called veth_mtu.
https://github.com/openvswitch/ovs/blob/master/FAQ.md#q-how-do-i-connect-two-bridges Darragh. From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of thomashamm...@gmx.net Sent: 12 September 2016 09:12 To: discuss@openvswitch.org Subject: [ovs-discuss] MTU size on Open vSwitch internal Bridge Ports Dear OVS gurus, I have installed OVS (Version 2.5.0) together with OpenStack Mitaka Release on Ubuntu 14.04 and I would like to get aware about the MTU size the internal Bridge Ports like "int-br-ex", "patch-tun" etc, use to forward traffic between the OVS Birdges. Is there any ovs utility available in order to display the used MTU size on all the internal Bridge ports? I guess OpenStack Neutron instructs ovs to set a specific MTU size. Correct? Greetings and thanks for support Thomas
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