Configuring NDP-related parametersFollow these steps to configure NDP-related parameters:To do… Use the command… RemarksEnter system view system-view —Configure the holdtime of NDPinformationndp timer agingaging-in-secondsOptionalBy default, the holdtime of NDPinformation is 180 seconds.Configure the interval to sendNDP packets ndp timer hello secondsOptionalBy default, the interval to sendNDP packets is 60 seconds.Enabling NTDP globally and on a specific portFollow these steps to enable NTDP globally and on a specific port:To do… Use the command… RemarksEnter system view system-view —Enable NTDP globally ntdp enable RequiredEnabled by defaultEnter Ethernet port view interface interface-typeinterface-number —Enable NTDP on the Ethernetport ntdp enable RequiredEnabled by defaultConfiguring NTDP-related parametersFollow these steps to configure NTDP-related parameters:To do… Use the command… RemarksEnter system view system-view —Configure the range to collecttopology information ntdp hop hop-valueOptionalBy default, the system collectstopology information from thedevices within three hops.Configure the device forwarddelay of topology collectionrequestsntdp timer hop-delay timeOptionalBy default, the device forwarddelay is 200 ms.Configure the port forwarddelay of topology collectionrequestsntdp timer port-delay timeOptionalBy default, the port forwarddelay is 20 ms.Configure the interval to collecttopology informationperiodicallyntdp timer interval-in-minutesOptionalBy default, the topologycollection interval is oneminute.Quit system view quit —48-11