Configuring Logical Router Interface Properties

With JUNOS software, you can partition a single physical routing platform into multiple logical devices that perform independent routing tasks. Because logical routers perform a subset of the tasks once handled by the physical routing platform, logical routers offer an effective way to maximize the use of a single router platform.

You can include the following logical router statements:

[edit logical-routers logical-router-name]

interfaces interface-name {

    unit logical-unit-number {

        logical-interface-statements;

    }

}

policy-options {

    policy-options-statements;

}

protocols {

    protocols-statements;

}

routing-instances {

    routing-instances-statements;

}

routing-options {

    routing-options-statements;

}

For an overview of logical routers, see the JUNOS Feature Guide. For detailed information about logical router configuration, see the JUNOS Routing Protocols Configuration Guide. For information about configuring peer relationships between logical routers, see JUNOS Services Interfaces Configuration Guide.

To configure interface properties of a logical router, you must include the following statements at the [edit logical-routers logical-router-name] hierarchy level:

[edit logical-routers logical-router-name]

interfaces interface-name {

    unit logical-unit-number {

        logical-interface-statements;

    }

}

Example: Configuring Logical Router Interface Properties

Configure a logical router's interface properties:

[edit interfaces t3-0/0/1]

description "Physical interface to be partitioned into multiple logical routers";

[edit logical-routers 1-on-t3-0/0/1]

interfaces t3-0/0/1 {

    unit 1 {

        family inet {

            address 10.0.0.1/32 {

                destination 10.0.0.2;

            }

        }

    }

}