+ net.nf_conntrack_max:
+ value: 500000
+ net.netfilter.nf_conntrack_max:
+ value: 500000
+ # prevent neutron bridges from autoconfiguring ipv6 addresses
+ net.ipv6.conf.default.accept_ra:
+ value: 0
+ net.ipv6.conf.default.autoconf:
+ value: 0
+ net.core.netdev_max_backlog:
+ value: 10000