---

- name: Configure ARP/ND cache
  sysctl: name={{ item.key }} value={{ item.value }} state=present
  with_items:
  - { key: 'net.ipv4.neigh.default.gc_thresh1', value: 2048 }
  - { key: 'net.ipv4.neigh.default.gc_thresh2', value: 4096 }
  - { key: 'net.ipv4.neigh.default.gc_thresh3', value: 8192 }
  - { key: 'net.ipv6.neigh.default.gc_thresh1', value: 2048 }
  - { key: 'net.ipv6.neigh.default.gc_thresh2', value: 4096 }
  - { key: 'net.ipv6.neigh.default.gc_thresh3', value: 8192 }