1-24System View: return to User View with Ctrl+Z.[Sysname] interface Vlan-interface 1[Sysname-Vlan-interface1] ipv6 nd ns retrans-timer 10000ipv6 nd nud reachable-timeSyntaxipv6 nd nud reachable-time valueundo ipv6 nd nud reachable-timeViewVLAN interface viewParametersvalue: Neighbor reachable time in milliseconds, in the range of 1 to 3,600,000.DescriptionUse the ipv6 nd nud reachable-time command to configure the neighbor reachable time on aninterface.Use the undo ipv6 nd nud reachable-time command to restore the default.By default, the neighbor reachable time on the local interface is 30,000 milliseconds.Related commands: display ipv6 interface.Examples# Set the neighbor reachable time on the VLAN-interface 1 to 10,000 milliseconds. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] interface Vlan-interface 1[Sysname-Vlan-interface1] ipv6 nd nud reachable-time 10000ipv6 neighborSyntaxipv6 neighbor ipv6-address mac-address { vlan-id port-type port-number | interface interface-typeinterface-number }undo ipv6 neighbor ipv6-address interface-type interface-numberViewSystem viewParametersipv6-address: IPv6 address in a static neighbor entry.mac-address: Link layer address in a static neighbor entry (48 bits long, in the format of H-H-H).vlan-id: VLAN ID corresponding to a static neighbor entry, in the range of 1 to 4094.port-type port-number: Ethernet port type and port number corresponding to a static neighbor entry.