Users Guide

Open Shortest Path First (OSPFv2

and OSPFv3)

Open Shortest Path First version 2 for IPv4 is supported on platform.

OSPF is an interior gateway protocol (IGP), which means that it distributes routing information between

routers in a single autonomous system (AS). OSPF is also a link-state protocol in which all routers contain

forwarding tables derived from information about their links to their neighbors.

The fundamental mechanisms of OSPF (flooding, DR election, area support, SPF calculations, and so on) are

the same for OSPFv2 and OSPFv3. OSPFv3 runs on a per-link basis instead of on a per-IP-subnet basis.

This section is divided into two sections. There is no overlap between the two sets of commands. You cannot

use an OSPFv2 command in the IPv6 OSPFv3 mode.

NOTE

: Dell Networking OS version 7.8.1.0 introduces Multi-Process OSPF on IPv4 (OSPFv2) only. It is not

supported on OSPFv3 (IPv6).

The CLI requires that you include the Process ID when entering ROUTER-OSPF mode. Each command

entered applies to the specified OSPFv2 process only.

Topics:

• OSPFv2 Commands

• OSPFv3 Commands

OSPFv2 Commands

The Dell Networking implementation of OSPFv2 is based on IETF RFC 2328. .

area default-cost

Set the metric for the summary default route the area border router (ABR) generates into the stub area. Use

this command on the border routers at the edge of a stub area.

S4048–ON

Syntax

area area-id default-cost cost

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