Hi!
I am trying to set the MTU to 9000.
ip link set dev br0 mtu 9000
It does work after running the command.
ip link show br0
4: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state
UP mode DEFAULT group
default qlen 1000
link/ether 22:6c:63:46:7e:67 brd ff:ff:ff:ff:ff:ff
But adding it to my configuration like this:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
pre-up ip link set dev eth0 mtu 9000
auto br0
iface br0 inet static
address 192.168.1.41
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 192.168.0.113
bridge_ports eth0
bridge_stp off
bridge_fd 0
mtu 9000
post-up ip link set dev br0 mtu 9000
The result after a restart is eth0 got MTU 9000 but br0 sticks to 1500.
I can change it and seems to work fine.
Tested it like that:
ping -M do -s 8950 192.168.1.42
Also I noticed runing service networking restart && ip link show br0
Shows the MTu 9000 is set once. I also have an working OVN and
OpenVSwitch on that machines. Is it OVN/OVS that makes it comming out
like that?
Greetings
filip
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