Re: [neutron][ovn] both vxlan and geneve cannot get full bandwidth

On 2025-04-28 23:22:29 +0700 (+0700), Nguyễn Hữu Khôi wrote: [...]

It happened only with geneve and vxlan. I can get full bandwidth with vlan. [...]

If you're seeing significant bandwidth reduction with encapsulated virtual networks, you may be fragmenting and doubling the number of frames needed. Make sure the MTU of the physical network is sufficiently larger than the encapsulated MTU to account for the encapsulation overhead. -- Jeremy Stanley