[ovs-discuss] Port persistence after a network.service restart
Alexander Witte
alexander.witte at baicanada.com
Thu Nov 22 23:11:03 UTC 2018
Hi!
Quick question hopefully someone can help me out with!
Environment- OVS and KVM running in Fedora29 Desktop.
I’m creating my OVS ports programmatically via virt-install on VM creation. (I’ve defined a libvirt network that associates some portgroups with the OVS). This works fine and adds the ports to the OVS. When I restart the network.service on the host, it wipes all the port configs in OVS. Any tips on for what I can do to make these ports persistent?
Example of a virt-install command:
virt-install -n wlc --description "Wireless Lan Controller VM" --os-type=Linux --ram=4096 --vcpus=1 --cpu mode=host-passthrough --disk device=cdrom,bus=sata --disk path=/var/lib/libvirt/qemu/wlc2.img,size=8,sparse=true,format=raw,bus=ide --network network:CentralNetwork,portgroup=mgmt,target=wlc-mgmt,model=virtio --network network:CentralNetwork,portgroup=wlc-trunk,target=wlc-trunk,model=virtio --graphics vnc,listen=0.0.0.0,port=5901 --boot cdrom,hd
Here’s my libvirt network:
[root at lannardemo ~]# virsh net-dumpxml CentralNetwork
<network connections='5'>
<name>CentralNetwork</name>
<uuid>7e2b0cf2-2d7e-4163-9fd3-599bad514a02</uuid>
<forward mode='bridge'/>
<bridge name='rootbridge'/>
<virtualport type='openvswitch'/>
<portgroup name='mgmt' default='yes'>
</portgroup>
<portgroup name='capwap'>
<vlan>
<tag id='2'/>
</vlan>
</portgroup>
<portgroup name='wan'>
</portgroup>
<portgroup name='client'>
<vlan>
<tag id='101'/>
</vlan>
</portgroup>
<portgroup name='wlc-trunk'>
<vlan>
<tag id='2'/>
</vlan>
</portgroup>
</network>
Here’s my OVS:
[root at lannardemo ~]# ovs-vsctl show
43553455-1708-4291-a000-cef31dc3620a
Bridge rootbridge
Port "enp5s0"
Interface "enp5s0"
Port utility-client
tag: 101
Interface utility-client
Port utility-capwap
tag: 2
Interface utility-capwap
Port rootbridge
Interface rootbridge
type: internal
Port utility-mgmt
Interface utility-mgmt
ovs_version: "2.10.0"
[root at lannardemo ~]#
Thanks!!
AlexW
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