Hi, I probably can use jumbo frames, but for now my lab is restricted to a single machine. Anything I can do in this situation?
-- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro ----- Original Message ----- > From: "Simon Weller" <swel...@ena.com.INVALID> > To: "dev" <dev@cloudstack.apache.org>, "users" <us...@cloudstack.apache.org> > Sent: Monday, 20 November, 2017 16:38:33 > Subject: Re: Circumventing VXLAN MTU issues > Lucian, > > Can you run jumbos on your switches? > > - Si > > > ________________________________ > From: Nux! <n...@li.nux.ro> > Sent: Monday, November 20, 2017 10:08 AM > To: dev > Cc: users > Subject: Circumventing VXLAN MTU issues > > Hello, > > I am playing around with the native VXLAN implementation and I have of course > hit the situation where MTU on the host gets chomped by 50 bytes and traffic > crawls to a stop in the VMs. > How are you people circumventing this? The easiest, but kind of inconvenient > for > customers would be to set MTU 1450 inside the VM, though it could be baked > into > the templates or via cloud-init. > > Is the OpenVSwitch implementation (of VXLAN) suffer from the same problem, I > understand ovs can dynamically adjust MTUs to compensate (?), but at the same > time this VXLAN implementation suffers from some limitations (multicast etc). > > Lucian > > > -- > Sent from the Delta quadrant using Borg technology! > > Nux! > www.nux.ro
