ubuntu@lp1850704-b:~$ dpkg -l systemd|grep ii
ii systemd 237-3ubuntu10.33 amd64 system and service manager
ubuntu@lp1850704-b:~$ ip l show ens3
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 6666 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff
ubuntu@lp1850704-b:~$ sudo ip l set mtu 1500 dev ens3
ubuntu@lp1850704-b:~$ ip l show ens3
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff
ubuntu@lp1850704-b:~$ sudo systemctl restart systemd-networkd
ubuntu@lp1850704-b:~$ ip l show ens3
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 6666 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff
ubuntu@ lp1850704- b:~$ cat /etc/systemd/ network/ 10-ens3. network
[Match]
Name=ens3
[Network] sing=ipv6
DHCP=ipv4
LinkLocalAddres
[Link]
MTUBytes=6666
ubuntu@ lp1850704- b:~$ dpkg -l systemd|grep ii lp1850704- b:~$ ip l show ens3 MULTICAST, UP,LOWER_ UP> mtu 6666 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 lp1850704- b:~$ sudo ip l set mtu 1500 dev ens3 lp1850704- b:~$ ip l show ens3 MULTICAST, UP,LOWER_ UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 lp1850704- b:~$ sudo systemctl restart systemd-networkd lp1850704- b:~$ ip l show ens3 MULTICAST, UP,LOWER_ UP> mtu 6666 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
ii systemd 237-3ubuntu10.33 amd64 system and service manager
ubuntu@
2: ens3: <BROADCAST,
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff
ubuntu@
ubuntu@
2: ens3: <BROADCAST,
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff
ubuntu@
ubuntu@
2: ens3: <BROADCAST,
link/ether 52:54:00:86:c7:44 brd ff:ff:ff:ff:ff:ff