P: /devices/virtual/net/virbr0
E: DEVPATH=/devices/virtual/net/virbr0
E: DEVTYPE=bridge
E: ID_MM_CANDIDATE=1
E: ID_NET_DRIVER=bridge
E: ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
E: IFINDEX=4
E: INTERFACE=virbr0
E: SUBSYSTEM=net
E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/virbr0
E: TAGS=:systemd:
E: USEC_INITIALIZED=6551225
X: INTERFACE_MAC=52:54:00:b0:81:1e