Interfaces within the network stack can be reloaded or reset to fix wedged interfaces. The NCNs have network device names set during first boot. The names vary based on the available hardware. For more information, see NCN Networking. Any process covered on this page will be covered by the installer.
The use cases for resetting services:
There are a few daemons that make up the SUSE network stack. The following are sorted by safest to touch relative to keeping an SSH connection up.
wickedd.service: The daemons handling each interface. Resetting this clears stale configuration.
This command restarts the wickedd service without reconfiguring the network interfaces.
systemctl restart wickedd
wicked.service: The overarching service for spawning daemons and manipulating interface configuration.
Resetting this reloads daemons and configuration.
This command restarts the wicked service which will respawns daemons and reconfigure the network.
systemctl restart wicked
network.service: Responsible for network configuration per interface; This does not reload wicked.
This command restarts the network interface configuration, but leaves wicked daemons alone.
NOTE Commonly the problem exists within
wicked. This is a last resort in the event the configuration is so badwickedcannot handle it.
# Restart the network interface configuration, but leaves wicked daemons alone.
systemctl restart network
(ncn# or pit#) Check interface status (up/down/broken):
wicked ifstatus
(ncn# or pit#) Show routing and status for all devices:
wicked ifstatus --verbose all
Example output:
lo up
link: #1, state up
type: loopback
control: persistent
config: compat:suse:/etc/sysconfig/network/ifcfg-lo,
uuid: 6ad37e59-72d7-5988-9675-93b8df96d9f6
leases: ipv4 static granted
leases: ipv6 static granted
addr: ipv4 127.0.0.1/8 scope host label lo [static]
addr: ipv6 ::1/128 scope host [static]
route: ipv6 ::1/128 type unicast table main scope universe protocol kernel priority 256
em1 device-unconfigured
link: #2, state down, mtu 1500
type: ethernet, hwaddr a4:bf:01:48:1f:dc
config: none
em2 device-unconfigured
link: #3, state down, mtu 1500
type: ethernet, hwaddr a4:bf:01:48:1f:dd
config: none
mgmt0 enslaved
link: #4, state up, mtu 9000, master bond0
type: ethernet, hwaddr b8:59:9f:f9:1c:8e
control: none
config: compat:suse:/etc/sysconfig/network/ifcfg-mgmt0,
uuid: 7175c041-ee2b-5ce2-a4d7-67fa6cb94a17
mgmt1 device-unconfigured
link: #5, state up, mtu 9000, master bond0
type: ethernet, hwaddr b8:59:9f:f9:1c:8e
config: none
bond0 device-unconfigured
link: #6, state up, mtu 9000
type: bond, mode ieee802-3ad, hwaddr b8:59:9f:f9:1c:8e
config: none
addr: ipv6 fe80::ba59:9fff:fef9:1c8e/64 scope link
route: ipv6 fe80::/64 type unicast table main scope universe protocol kernel priority 256
bond0.nmn0 device-unconfigured
link: #7, state up, mtu 9000
type: vlan bond0[2], hwaddr b8:59:9f:f9:1c:8e
config: none
addr: ipv4 10.252.2.2/17 brd 10.252.2.2 scope universe label bond0.nmn0
addr: ipv6 fe80::ba59:9fff:fef9:1c8e/64 scope link
route: ipv4 0.0.0.0/0 via 10.252.1.1 dev bond0.nmn0 type unicast table main scope universe protocol boot
route: ipv4 10.252.0.0/17 type unicast table main scope link protocol kernel pref-src 10.252.2.2
route: ipv6 fe80::/64 type unicast table main scope universe protocol kernel priority 256
bond0.hmn0 device-unconfigured
link: #8, state up, mtu 9000
type: vlan bond0[4], hwaddr b8:59:9f:f9:1c:8e
config: none
addr: ipv4 10.254.2.2/17 brd 10.254.2.2 scope universe label bond0.hmn0
addr: ipv6 fe80::ba59:9fff:fef9:1c8e/64 scope link
route: ipv4 10.254.0.0/17 type unicast table main scope link protocol kernel pref-src 10.254.2.2
route: ipv6 fe80::/64 type unicast table main scope universe protocol kernel priority 256
bond0.can0 device-unconfigured
link: #9, state up, mtu 9000
type: vlan bond0[7], hwaddr b8:59:9f:f9:1c:8e
config: none
addr: ipv4 10.102.9.12/24 brd 10.102.9.12 scope universe label bond0.can0
addr: ipv6 fe80::ba59:9fff:fef9:1c8e/64 scope link
route: ipv4 10.102.9.0/24 type unicast table main scope link protocol kernel pref-src 10.102.9.12
route: ipv6 fe80::/64 type unicast table main scope universe protocol kernel priority 256
(ncn# or pit#) Print real devices (ignore no-device):
wicked show --verbose all
(ncn# or pit#) Show the currently enabled network service (Wicked or Network Manager):
systemctl show -p Id network.service
This will output the current network service:
Id=wicked.service