Hi,
i am using Ceph Storage with a MTU of 9000 and VLANs and bonds
So my eth cards have MTU 9000 and the bonds also have MTU 9000
on the different vlans i have different mtu ranging from 1500 to 9000
My vmbr0 has a fixed mtu of 1500 defined in /etc/network/interfaces
Now, when I stop and start a vm the mtu of my vmbr0 is changed automagically to 9000 by proxmox.
I can change MTU on shell back to 1500 but i can always reproduce that starting a vm changes the mtu back to 9000.
I want vmbr0 mtu to be 1500
Problem is now: I have different servers and when some are sending with mtu 9000 and others are sending with 1500 my corosync communication will sometimes fail.
Is there a way to prevet proxmox from changing system MTU ?
i am using Ceph Storage with a MTU of 9000 and VLANs and bonds
So my eth cards have MTU 9000 and the bonds also have MTU 9000
on the different vlans i have different mtu ranging from 1500 to 9000
My vmbr0 has a fixed mtu of 1500 defined in /etc/network/interfaces
Now, when I stop and start a vm the mtu of my vmbr0 is changed automagically to 9000 by proxmox.
I can change MTU on shell back to 1500 but i can always reproduce that starting a vm changes the mtu back to 9000.
I want vmbr0 mtu to be 1500
Problem is now: I have different servers and when some are sending with mtu 9000 and others are sending with 1500 my corosync communication will sometimes fail.
Is there a way to prevet proxmox from changing system MTU ?