Attachment 1613928 Details for Bug 1751079 – Reproducer

Reproducer

NM_MTU (text/plain), 2.78 KB, created by Ales Musil on 2019-09-11 07:02:09 UTC

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Creator: Ales Musil

Created: 2019-09-11 07:02:09 UTC

Size: 2.78 KB

patch

obsolete

>[root@localhost ~]# ip link add dummy_abc type dummy
>[root@localhost ~]# nmcli con add type dummy con-name dummy_abc ifname dummy_abc
>Connection 'dummy_abc' (b3121098-5bbf-4a2c-88dd-f72486b007dc) successfully added.
>[root@localhost ~]# nmcli con modify dummy_abc ipv4.method disabled ipv6.method ignore 802-3-ethernet.mtu 2000
>[root@localhost ~]# nmcli con up dummy_abc 
>Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/65)
>[root@localhost ~]# ip link
>76: dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 2000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>[root@localhost ~]# nmcli con add type vlan con-name dummy_abc.10 ifname dummy_abc.10 dev dummy_abc id 10
>Connection 'dummy_abc.10' (64531f67-88ee-47ca-ade7-5ea1bdbf87cb) successfully added.
>[root@localhost ~]# nmcli con modify dummy_abc.10 ipv4.method disabled ipv6.method ignore 802-3-ethernet.mtu 2000
>[root@localhost ~]# nmcli con up dummy_abc.10
>Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/67)
>[root@localhost ~]# ip link
>76: dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 2000 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>77: dummy_abc.10@dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 2000 qdisc noqueue state UP mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>[root@localhost ~]# nmcli con add type vlan con-name dummy_abc.20 ifname dummy_abc.20 dev dummy_abc id 20
>Connection 'dummy_abc.20' (cba86216-9b48-41ed-aa6c-417c19de1047) successfully added.
>[root@localhost ~]# nmcli con modify dummy_abc 802-3-ethernet.mtu 2200
>[root@localhost ~]# nmcli con modify dummy_abc.20 ipv4.method disabled ipv6.method ignore 802-3-ethernet.mtu 2200
>[root@localhost ~]# nmcli con up dummy_abc
>Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/70)
>[root@localhost ~]# nmcli con up dummy_abc.20
>Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/72)
>[root@localhost ~]# ip link
>76: dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 2200 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>77: dummy_abc.10@dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>79: dummy_abc.20@dummy_abc: <BROADCAST,NOARP,UP,LOWER_UP> mtu 2200 qdisc noqueue state UP mode DEFAULT group default qlen 1000
>    link/ether 42:d6:51:e6:6b:87 brd ff:ff:ff:ff:ff:ff
>[root@localhost ~]# nmcli -g 802-3-ethernet.mtu con show dummy_abc.10 
>2000
>

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Attachments on bug 1751079: 1613928