Hi,
i'm trying to enable jumbo frames on our infrastructure in order to gain benefit for Ceph performance, unfortunately there is no way to make jumbo frames works in our situation.
When I set mtu 9000 on network configuration, interfaces are not going up with that MTU but with the default one (1500).
Here is our network configuration:
	
	
	
		
Anyone can help me? Do you have an idea on what is the cause of that problem?
Many thanks
				
			i'm trying to enable jumbo frames on our infrastructure in order to gain benefit for Ceph performance, unfortunately there is no way to make jumbo frames works in our situation.
When I set mtu 9000 on network configuration, interfaces are not going up with that MTU but with the default one (1500).
Here is our network configuration:
		Bash:
	
	# network interface settings; autogenerated
# Please do NOT modify this file directly, unless you know what
# you're doing.
#
# If you want to manage part of the network configuration manually,
# please utilize the 'source' or 'source-directory' directives to do
# so.
# PVE will preserve these directives, but will NOT its network
# configuration from sourced files, so do not attempt to move any of
# the PVE managed interfaces into external files!
auto lo
iface lo inet loopback
iface eno1 inet manual
    mtu 9000
iface eno2 inet manual
    mtu 9000
iface eno3 inet manual
iface eno4 inet manual
auto ens1f0
iface ens1f0 inet static
    address  10.65.0.10
    netmask  255.255.255.0
#Corosync Ring 1
auto ens1f1
iface ens1f1 inet static
    address  10.66.0.10
    netmask  255.255.255.0
#Corosync Ring 2
auto bond0
iface bond0 inet manual
    bond-slaves eno1 eno2
    bond-miimon 100
    bond-mode balance-alb
    mtu 9000
#Bond U - 10 Gb Network
iface bond0.1060 inet manual
    mtu 9000
#Bond T - Ceph Public Network
iface bond0.1061 inet static
    mtu 9000
#Bond T - Ceph Cluster Network
auto bond1
iface bond1 inet manual
    bond-slaves eno3 eno4
    bond-miimon 100
    bond-mode balance-alb
#Bond U - 1 Gb Network
iface bond1.1040 inet manual
#Bond T - DMZ Network
iface bond1.1051 inet manual
#Bond T - USB Network
auto vmbr1050
iface vmbr1050 inet static
    address  10.50.0.200
    netmask  255.255.255.0
    gateway  10.50.0.1
    bridge-ports bond0
    bridge-stp off
    bridge-fd 0
    mtu 1500
#Bridge - Cluster Management Network
auto vmbr1060
iface vmbr1060 inet static
    address  10.60.0.10
    netmask  255.255.255.0
    bridge-ports bond0.1060
    bridge-stp off
    bridge-fd 0
    mtu 9000
#Bridge - Ceph Public Network
auto vmbr1061
iface vmbr1061 inet static
    address  10.61.0.10
    netmask  255.255.255.0
    bridge-ports bond0.1061
    bridge-stp off
    bridge-fd 0
    mtu 9000
#Bridge - Ceph Cluster Network
auto vmbr1055
iface vmbr1055 inet manual
    bridge-ports bond1
    bridge-stp off
    bridge-fd 0
#Bridge - VMs Network
auto vmbr1040
iface vmbr1040 inet manual
    bridge-ports bond1.1040
    bridge-stp off
    bridge-fd 0
#Bridge - DMZ Network
auto vmbr1051
iface vmbr1051 inet manual
    bridge-ports bond1.1051
    bridge-stp off
    bridge-fd 0
#Bridge - USB NetworkAnyone can help me? Do you have an idea on what is the cause of that problem?
Many thanks
 
	 
	 
 
		