Re: Changing network MTU

2019-08-27 Thread Samuel Martín Moro
Look at the ConfigMaps in project openshift-node. Change the mtu param in there first. Restart the node (origin-node / atomic-openshift-node) service on all nodes. If all goes well, you should be able to then reconfigure your network interfaces. On Tue, Aug 27, 2019, 6:32 PM Tim Dudgeon wrote:

Re: Changing network MTU

2019-08-27 Thread Tim Dudgeon
OK, thanks. So what would be needed to change this on a running system rather than when you first install openshift? On 27/08/2019 17:14, Brian Jarvis wrote: Tim, You need to set the MTU of the OpenShift SDN to be lower than the MTU of the NIC. This is described in

Re: Changing network MTU

2019-08-27 Thread Brian Jarvis
Tim, You need to set the MTU of the OpenShift SDN to be lower than the MTU of the NIC. This is described in https://docs.openshift.com/container-platform/3.11/scaling_performance/network_optimization.html#scaling-performance-optimizing-mtu . On Tue, Aug 27, 2019 at 12:02 PM Tim Dudgeon