Router Discovery Protocol Commands 133355Router Discovery ProtocolCommandsDell Networking N3000/N4000 Series SwitchesRouters can be configured to periodically send router discovery messages toannounce their presence to locally attached hosts. The router discoverymessage advertises one or more IP addresses on the router that hosts can useas their default gateway. Hosts can send a router solicitation message askingany router that receives the message to immediately send a routeradvertisement, so that the host does not have to wait for the next periodicmessage.Router discovery enables hosts to select from among multiple defaultgateways and switch to a different default gateway if an initially designatedgateway goes down.Commands in this ChapterThis chapter explains the following commands:ip irdpUse the ip irdp command in Interface Configuration mode to enable RouterDiscovery on an interface. Use the no form of the command to disable RouterDiscovery.Syntaxip irdp [multicast | holdtimeseconds | maxadvertintervalseconds |minadvertintervalseconds | preferencenumber | addressaddress]ip irdp ip irdp multicastip irdp holdtime ip irdp preferenceip irdp maxadvertinterval show ip irdpip irdp minadvertinterval –