Command Manual (For Soliton) – Stack-ClusterH3C S3100 Series Ethernet SwitchesChapter 2 HGMP V2 ConfigurationCommands2-4By default, NDP is enabled both globally and on ports.Note that NDP can take effect on a port only when NDP is enabled both globally and onthe port.Examples# Enable NDP globally, and then enable NDP on port Ethernet 1/0/1. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] ndp enable[Sysname] interface Ethernet 1/0/1[Sysname-Ethernet1/0/1] ndp enable2.1.3 ndp timer agingSyntaxndp timer aging aging-in-secondsundo ndp timer agingViewSystem viewParametersaging-in-seconds: Holdtime of the NDP information, ranging from 5 to 255 seconds.DescriptionUse the ndp timer aging command to set the holdtime of the NDP information. Thiscommand specifies how long an adjacent device should hold the NDP neighborinformation received from the local switch before discarding the information.Use the undo timer aging command to restore the default holdtime of NDPinformation.By default, the holdtime of NDP information is 180 seconds.You can specify how long the adjacent devices should hold the NDP informationreceived from the local switch. When an adjacent device receives an NDP packet fromthe local switch, it learns how long it should keep the NDP information of the switchaccording to the holdtime carried in the NDP packet, and discards the NDP informationwhen the holdtime expires.Note that NDP information holdtime should be longer than the interval between sendingNDP packets. Otherwise, a neighbor entry will be generated and age out frequently,resulting in instability of the NDP port neighbor table.
