https://www.juniper.net/documentation/en_US/vmx15.1f6/topics/task/operational/vmx-managing.html
Note: If you cannot deploy vMX after upgrading libvirt, bring down the virbr0 bridge with the ifconfig virbr0 down command and delete the bridge with the brctl delbr virbr0 command. |
[root@hp8300 vmx]# virsh net-dumpxml default
<network>
<name>default</name>
<uuid>7c445c27-05c8-45b3-8049-4fa6b5b01778</uuid>
...