mtu

Hello PVE-Community, I recently setup a three node cluster and I have this weird issue where the shutdown of a VM or CT changes the MTU of the bridge that is used for communication between VM/CTs and also for the cluster link. The MTU is changed to whatever is configured at the primary...

Hello, We have speed loss with mtu set to 9000 and WMs using a mtu of 1500. Here is the configuration, we have 2 proxmox connected to a switch : vmbr1 is an ovs bridge with mtu 9000. Bond0 is an ovs bond with mtu 9000, each member of the bond has a mtu of 9000 using pre-up, and is link vmbr1...

Hallo. Wir haben aktuell Probleme mit der MTU Size. Ich beschreibe hier kurz unsere Umgebung: Wir haben eine NetApp stehen die per NFS an Cisco 3750 Switches hängt. Die NFS Shares werden von einem PVE Cluster (Dell R720 Server) der aus fünf Nodes besteht gemountet. Die NetApp und die Switches...

I just ran into trouble with enabling multicast on the OVSIntPorts. My cluster network uses 2 Intel 10G ports bonded together, 1 Bridge, 2 IntPorts. On the switch side I added a trunk and enabled jumboframes. After setting (according to the wiki) MTU to 8996 ceph cluster stops working, while...

Will changing the MTU of the cluster VLAN to 9000 affect the networking stack? We changed it to 9000 for the SAN, but I am concerned it will cause conflicts with vmbr and tap virtual interfaces. The cluster is on the same VLAN as the NFS SAN. Is there any way to have the cluster VLAN and NFS...

This morning I found that one of our hypervisor nodes was revert an openvswitch 2.3.2-1 to default mtu of 1500 instead of the configured 9000. Underlying NIC still had 9000 for their MTUs, but the openvswitch vmbr1 only had 1500 and I couldn't configure it from CLI with: ifconfig vmbr1 mtu 9000...