ND snooping commands clear nd-snooping binding clear nd-snooping statistics nd-snooping nd-snooping (in config-vlan context) nd-snooping mac-check nd-snooping prefix-list nd-snooping max-bindings nd-snooping nd-guard nd-snooping ra-guard nd-snooping ra-drop nd-snooping trust show nd-snooping show nd-snooping binding show nd-snooping prefix-list show nd-snooping statistics