<?xml version="1.0"?> <interfaceDefinition> <node name="restart"> <children> <node name="router-advert"> <properties> <help>Restart IPv6 Router Advertisement service</help> </properties> <command>if cli-shell-api existsActive service router-advert; then sudo systemctl restart radvd.service; else echo "IPv6 Router Advertisement service not configured"; fi</command> </node> </children> </node> </interfaceDefinition>