[ovs-discuss] OpenvSwitch Message too large

Ben Pfaff blp at ovn.org
Mon Oct 19 17:58:24 UTC 2020

On Mon, Oct 19, 2020 at 09:59:13PM +0700, KhacThuan Bk wrote:
>  Hi all,
> I'm using ovs with bonding interface. All interface is using mtu 1500.
> But in ovs-vswitchd.log i saw some log about "Message too long". I cannot
> use ovs-tcpdump to trace message. Any one used face this problem can tell
> my what is problem. I have some info follow this.

There really is probably something odd going on with MTU, especially
since the bonding driver is involved.  Make sure that the members of the
bond all have MTU 1500 too.

OVS has its own bonding implementation, it's odd to use the kernel's
instead, especially with the userspace datapath.

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