Reference Guide

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1081

Open Shortest Path First (OSPFv2) | 1081

Defaults

dead-interval seconds = 40 seconds; hello-interval seconds = 10 seconds;

retransmit-interval seconds = 5 seconds; transmit-delay seconds = 1 second

Command Modes

ROUTER OSPF

Command

History

Usage

Information

All OSPF areas must be connected to a backbone area (usually Area 0). Virtual links

connect broken or discontiguous areas.

You cannot enable both authentication options. Choose either the

authentication-key

message-digest-key option.

auto-cost

c e s

Specify how the OSPF interface cost is calculated based on the reference bandwidth

method.

Syntax

auto-cost [reference-bandwidth ref-bw]

To return to the default bandwidth or to assign cost based on the interface type, use

the

no auto-cost [reference-bandwidth] command.

Parameters

Defaults

100 megabits per second.

Command Modes

ROUTER OSPF

Command

History

Version 8.3.19.0 Introduced on S4820T

Version 8.3.7.0 Introduced on S4810

Version 7.8.1.0 Introduced support for Multi-Process OSPF.

Version 7.6.1.0 Introduced on S-Series

Version 7.5.1.0 Introduced on C-Series

pre-Version 6.1.1.1 Introduced on E-Series

ref-bw

(OPTIONAL) Specify a reference bandwidth in megabits per second.

Range: 1 to 4294967

Default: 100 megabits per second.