Reference Guide

Open Shortest Path First (OSPFv2)

Open Shortest Path First (OSPFv2) is supported on the S5000 switch. Up to 16 OSPF instances can run

simultaneously on the S5000.

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

allow you to configure and enable OSPFv2.

area default-cost

Set the metric for the summary default route generated by the area border router (ABR) into the stub

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

S5000

Syntax

area area-id default-cost cost

To return default values, use the no area area-id default-cost command.

Parameters

area-id Specify the OSPF area in dotted decimal format (A.B.C.D.) or

enter a number from zero (0) to 65535.

cost Specifies the stub area’s advertised external route metric. The

range is zero (0) to 65535.

Defaults cost = 1; no areas are configured.

Command

Modes

ROUTER OSPF

Command

History

Version 9.0(1.3) Introduced on the S5000.

Usage

Information

In the Dell Networking OS, cost is defined as reference bandwidth/bandwidth.

Commands

area stub – creates a stub area.

Open Shortest Path First (OSPFv2)

971