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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Configuration Task List for OSPFv3 (OSPF for IPv6)

This section describes the configuration tasks for Open Shortest Path First version 3 (OSPF for IPv6) on the switch.

The configuration options of OSPFv3 are the same as those options for OSPFv2, but you may configure OSPFv3 with differently labeled commands. Specify process IDs and areas and include interfaces and addresses in the process. Define areas as stub or totally stubby.

The interfaces must be in IPv6 Layer-3 mode (assigned an IPv6 IP address) and enabled so that they can send and receive traffic. The OSPF process must know about these interfaces. To make the OSPF process aware of these interfaces, assign them to OSPF areas.

The OSPFv3 ipv6 ospf area command enables OSPFv3 on the interface and places the interface in an area. With OSPFv2, two commands are required to accomplish the same tasks — the router ospf command to create the OSPF process, then the network area command to enable OSPF on an interface.

NOTE The OSPFv2 network area command enables OSPF on multiple interfaces with the single command. Use the OSPFv3 ipv6 ospf area command on each interface that runs OSPFv3.

All IPv6 addresses on an interface are included in the OSPFv3 process that is created on the interface.

Enable OSPFv3 for IPv6 by specifying an OSPF process ID and an area in INTERFACE mode. If you have not created an OSPFv3 process, it is created automatically. All IPv6 addresses configured on the interface are included in the specified OSPF process.

NOTE IPv6 and OSPFv3 do not support Multi-Process OSPF. You can only enable a single OSPFv3 process. To create multiple OSPF processes you need to have multiple VRFs on a switch.

Set the time interval between when the switch receives a topology change and starts a shortest path first (SPF) calculation.

timers spf delay holdtime
NOTE To set the interval time between the reception of topology changes and calculation of SPF in milli seconds, use the timers spf delay holdtime msec command.

Example

DellEMC#conf
DellEMC(conf)#ipv6 router ospf 1
DellEMC(conf-ipv6-router_ospf)#timer spf 2 5 msec
DellEMC(conf-ipv6-router_ospf)#
DellEMC(conf-ipv6-router_ospf)#show config
!
ipv6 router ospf 1
timers spf 2 5 msec
DellEMC(conf-ipv6-router_ospf)#
DellEMC(conf-ipv6-router_ospf)#end
DellEMC#

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