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OSPF Configuration Guidelines

To configure Open Shortest Path First Version 2 (OSPF), you include statements at the [edit protocols ospf] hierarchy level of the configuration. To configure routing instances, include statements at the [routing-instances routing-instance-name protocols ospf] hierarchy level. 

protocols {

    ospf { 

        disable; 

        export [ policy-names ];

        external-preference preference;

        graceful-restart {

            disable;

            helper-disable;

            notify-duration seconds;

            restart-duration seconds;

        }

        overload { 

            <timeout seconds>;

        } 

        preference preference;

        prefix-export-limit;

        rib-group group-name; 

        reference-bandwidth reference-bandwidth; 

        spf-delay;

        traffic-engineering {

            no-topology;

            shortcuts {

                lsp-metric-into-summary;

            }

        }

        traceoptions {

            file name <replace> <size size> <files number> <no-stamp> 

                <(world-readable | no-world-readable)>;

            flag flag <flag-modifier> <disable>; 

        }

        area area-id {

            area-range network/mask-length <restrict>;

            authentication-type authentication; 

            interface interface-name {

                disable;

                authentication-key key <key-id identifier>;

                dead-interval seconds;

                hello-interval seconds;

                interface-type type;

                metric metric;

                neighbor address <eligible>;

                passive;

                poll-interval seconds;

                priority number;

                retransmit-interval seconds;

                transit-delay seconds;

            }

            label-switched-path name metric metric;

            nssa {

                area-range network/mask-length <restrict>;

                default-lsa {

                    default-metric metric;

                    metric-type type;

                    type-7;

                }

                (no-summaries | summaries)

            }

            peer-interface interface-name {

                disable;

                dead-interval seconds;

                hello-interval seconds;

                retransmit-interval seconds;

                transit-delay seconds;

            }

            stub <default-metric metric> <summaries | no-summaries>;

            virtual-link neighbor-id router-id transit-area area-id {

                disable;

                authentication-key key <key-id identifier>;

                dead-interval seconds;

                hello-interval seconds;

                retransmit-interval seconds;

                transit-delay seconds;

            }

        }

    }

}

To configure OSPF Version 3, you include statements at the [edit protocols ospf3] hierarchy level of the configuration:

protocols {

    ospf3 { 

        disable; 

        export [ policy-names ];

        external-preference preference;

        graceful-restart {

            disable;

            helper-disable;

            notify-duration seconds;

            restart-duration seconds;

        }

        overload { 

            <timeout seconds>;

        } 

        preference preference;

        prefix-export-limit;

        reference-bandwidth reference-bandwidth; 

        rib-group group-name; 

        spf-delay;

        traceoptions {

            file name <replace> <size size> <files number> <no-stamp> 

                <(world-readable | no-world-readable)>;

            flag flag <flag-modifier> <disable>; 

        }

        area area-id {

            area-range network/mask-length <restrict>;

            interface interface-name {

                disable;

                dead-interval seconds;

                hello-interval seconds;

                metric metric;

                passive;

                priority number;

                retransmit-interval seconds;

                transit-delay seconds;

            }

            nssa {

                area-range network/mask-length <restrict>;

                default-lsa {

                    default-metric metric;

                    metric-type type;

                    type-7;

                }

                (no-summaries | summaries)

            }

            stub <default-metric metric> <summaries | no-summaries>;

            virtual-link neighbor-id router-id transit-area area-id {

                disable;

                dead-interval seconds;

                hello-interval seconds;

                retransmit-interval seconds;

                transit-delay seconds;

            }

        }

    }

}

By default, OSPFv2 and OSPFv3 are disabled.


In this manual, the term OSPF refers to both OSPFv2 and OSPFv3.

This chapter describes the following tasks for configuring OSPF:

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