How to set MTU on bridge device with netplan & networkd?
I want to use netplan with the networkd backend to bring up an ethernet bridge, with a specific MTU.
I can configure the MTU parameter in the netplan files, for both the bridge device and ethernet interfaces, and I see this propagated into the systemd networkd configurations -- however the actual devices are only brought up with the default 1500 MTU.
This is the netplan config:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: false
mtu: 9000
bridges:
br0:
addresses:
- 10.1.1.1/24
dhcp4: false
interfaces:
- eno1
mtu: 9000
That generates networkd configurations that include MTUBytes=9000 for both the bridge and ethernet links.
Any thoughts?
My current hacky workaround is to put a script in /usr/lib/networkd-dispatcher/routable.d/ which calls ip link set mtu ... but surely there is a better way?
Versions involved:
- Ubuntu 18.04 LTS
- netplan 1.10.1-5build1
- networkd-dispatcher 1.7-0ubuntu3.3
- systemd 237-3ubuntu10.9
linux networking ethernet systemd mtu
asked Dec 4 at 0:56
Toby Corkindale
112
add a comment |
I want to use netplan with the networkd backend to bring up an ethernet bridge, with a specific MTU.
I can configure the MTU parameter in the netplan files, for both the bridge device and ethernet interfaces, and I see this propagated into the systemd networkd configurations -- however the actual devices are only brought up with the default 1500 MTU.
This is the netplan config:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: false
mtu: 9000
bridges:
br0:
addresses:
- 10.1.1.1/24
dhcp4: false
interfaces:
- eno1
mtu: 9000
That generates networkd configurations that include MTUBytes=9000 for both the bridge and ethernet links.
Any thoughts?
My current hacky workaround is to put a script in /usr/lib/networkd-dispatcher/routable.d/ which calls ip link set mtu ... but surely there is a better way?
Versions involved:
- Ubuntu 18.04 LTS
- netplan 1.10.1-5build1
- networkd-dispatcher 1.7-0ubuntu3.3
- systemd 237-3ubuntu10.9
linux networking ethernet systemd mtu
asked Dec 4 at 0:56
Toby Corkindale
112
add a comment |
I want to use netplan with the networkd backend to bring up an ethernet bridge, with a specific MTU.
I can configure the MTU parameter in the netplan files, for both the bridge device and ethernet interfaces, and I see this propagated into the systemd networkd configurations -- however the actual devices are only brought up with the default 1500 MTU.
This is the netplan config:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: false
mtu: 9000
bridges:
br0:
addresses:
- 10.1.1.1/24
dhcp4: false
interfaces:
- eno1
mtu: 9000
That generates networkd configurations that include MTUBytes=9000 for both the bridge and ethernet links.
Any thoughts?
My current hacky workaround is to put a script in /usr/lib/networkd-dispatcher/routable.d/ which calls ip link set mtu ... but surely there is a better way?
Versions involved:
- Ubuntu 18.04 LTS
- netplan 1.10.1-5build1
- networkd-dispatcher 1.7-0ubuntu3.3
- systemd 237-3ubuntu10.9
linux networking ethernet systemd mtu
asked Dec 4 at 0:56
Toby Corkindale
112
I want to use netplan with the networkd backend to bring up an ethernet bridge, with a specific MTU.
I can configure the MTU parameter in the netplan files, for both the bridge device and ethernet interfaces, and I see this propagated into the systemd networkd configurations -- however the actual devices are only brought up with the default 1500 MTU.
This is the netplan config:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: false
mtu: 9000
bridges:
br0:
addresses:
- 10.1.1.1/24
dhcp4: false
interfaces:
- eno1
mtu: 9000
That generates networkd configurations that include MTUBytes=9000 for both the bridge and ethernet links.
Any thoughts?
My current hacky workaround is to put a script in /usr/lib/networkd-dispatcher/routable.d/ which calls ip link set mtu ... but surely there is a better way?
Versions involved:
- Ubuntu 18.04 LTS
- netplan 1.10.1-5build1
- networkd-dispatcher 1.7-0ubuntu3.3
- systemd 237-3ubuntu10.9
linux networking ethernet systemd mtu
linux networking ethernet systemd mtu
asked Dec 4 at 0:56
Toby Corkindale
112
asked Dec 4 at 0:56
Toby Corkindale
112
asked Dec 4 at 0:56
Toby Corkindale
112
asked Dec 4 at 0:56
Toby Corkindale
112
asked Dec 4 at 0:56
Toby Corkindale
112
112
add a comment |
add a comment |
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