Administrator Guide

Layer 3 Routing Commands 1797
Router Discovery Protocol
Commands
Dell EMC Networking N3000/N3100/N4000 Series Switches
Routers can be configured to periodically send router discovery messages to
announce their presence to locally attached hosts. The router discovery
message advertises one or more IP addresses on the router that hosts can use
as their default gateway. Hosts can send a router solicitation message asking
any router that receives the message to immediately send a router
advertisement, so that the host does not have to wait for the next periodic
message.
Router discovery enables hosts to select from among multiple default
gateways and switch to a different default gateway if an initially designated
gateway goes down.
Commands in this Section
This section explains the following commands:
ip irdp
Use the ip irdp command in Interface Configuration mode to enable Router
Discovery on an interface. Use the no form of the command to disable Router
Discovery.
Syntax
ip irdp [multicast | holdtime seconds | maxadvertinterval seconds |
minadvertinterval seconds | preference number | address address]
no ip irdp holdtime
encapsulation ip irdp multicast
ip irdp holdtime ip irdp preference
ip irdp maxadvertinterval show ip irdp
ip irdp minadvertinterval
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