Hi, Alexander, at least one global setting could help: secstorage.vm.mtu.size
In my case network has larger MTU so, smaller for VR and CPVM is not a problem. But for SSVM it is and this parameter helps. But for your case I don't see a clear solution rather than to recommend you to hack systemvm template. Probably, you are using VPN overlay network over a public IP network to deliver services or Q-in-Q. Anyway, it's not an out-of-the box solution and requires extra investigation. ср, 2 янв. 2019 г. в 08:58, Alexander Overvoorde <a.overvoo...@nerdalize.com >: > Hi, > > I have a setup where the public traffic travels over a VLAN interface and > should have an MTU of 1400 rather than the default 1500. The virtual > interfaces seem to respect this setting: > > *27: vnet5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc fq_codel > master cloudbr0 state UNKNOWN mode DEFAULT group default qlen 1000* > > However, the interfaces inside the VMs try to use an MTU of 1500. I solved > this for user VMs by providing a cloud-init script that sets the MTU, but > there seems to be no such possibility for system VMs. How do I set the MTU > correctly? > > -- > > [image: Nerdalize] > > Alexander Overvoorde > > +31 6 20 28 27 29 > > OR > > +31 15 30 10 022 > -- With best regards, Ivan Kudryavtsev Bitworks LLC Cell RU: +7-923-414-1515 Cell USA: +1-201-257-1512 WWW: http://bitworks.software/ <http://bw-sw.com/>
