1-12Configure the NS IntervalAfter a device sends an NS message, if it does not receive a response within a specific period, thedevice will send another NS message. You can configure the interval for sending NS messages.Table 1-9 Configure the NS intervalTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-number —Specify the NS interval ipv6 nd ns retrans-timer value Optional1,000 milliseconds by defaultConfigure the neighbor reachable timeout time on an interfaceAfter a neighbor passed the reachability detection, the device considers the neighbor to be reachable ina specific period. However, the device will examine whether the neighbor is reachable again when thereis a need to send packets to the neighbor after the neighbor reachable timeout time elapsed.Table 1-10 Configure the neighbor reachable timeout time on an interfaceTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-number —Configure the neighborreachable timeout timeipv6 nd nud reachable-timevalueOptional30,000 millisecondsConfiguring a Static IPv6 RouteYou can configure static IPv6 routes for network interconnection in a small sized IPv6 network.Table 1-11 Configure a static IPv6 routeTo do… Use the command… RemarksEnter system view system-view —Configure a static IPv6routeipv6 route-static ipv6-addressprefix-length [ interface-typeinterface-number] nexthop-addressRequiredBy default, no static IPv6 routeis configured.Configuring IPv6 TCP PropertiesThe IPv6 TCP properties you can configure include:z synwait timer: When a SYN packet is sent, the synwait timer is triggered. If no response packet isreceived before the synwait timer expires, the IPv6 TCP connection establishment fails.
