Example: Configuring OSPF Routing Protocol for a User Logical System

Requirements

• Log in to the user logical system as the user logical system administrator. See User Logical System Configuration Overview.
• Configure logical interface ge-0/0/5.1. Assign ge-0/0/5.1 and lt-0/0/0.3 to the pd-vr1 routing instance. See Example: Configuring Interfaces and Routing Instances for a User Logical System.

Overview

In this example, you configure OSPF for the ls-product-design user logical system, shown in Example: Creating User Logical Systems, Their Administrators, Their Users, and an Interconnect Logical System.

• ospf-redist-direct—Routes learned from directly connected interfaces.
• ospf-redist-static—Static routes.
• ospf-to-ospf—Routes learned from OSPF.

Configuration

CLI Quick Configuration

To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.

Step-by-Step Procedure

1. Log in to the user logical system as the user logical system administrator and enter configuration mode.
   lsdesignadmin1@host:ls-product-design> configurelsdesignadmin1@host:ls-product-design#
2. Create routing policies that accept routes.
   [edit policy-options]lsdesignadmin1@host:ls-product-design# set policy-statement ospf-redist-direct from protocol directlsdesignadmin1@host:ls-product-design# set policy-statement ospf-redist-direct then acceptlsdesignadmin1@host:ls-product-design# set policy-statement ospf-redist-static from protocol staticlsdesignadmin1@host:ls-product-design# set policy-statement ospf-redist-static then acceptlsdesignadmin1@host:ls-product-design# set policy-statement ospf-to-ospf from protocol ospflsdesignadmin1@host:ls-product-design# set policy-statement ospf-to-ospf then accept
3. Apply the routing policies to routes exported from the Junos OS routing table into OSPF.
   [edit routing-instances]lsdesignadmin1@host:ls-product-design# set pd-vr1 protocols ospf export ospf-redist-directlsdesignadmin1@host:ls-product-design# set pd-vr1 protocols ospf export ospf-redist-staticlsdesignadmin1@host:ls-product-design# set pd-vr1 protocols ospf export ospf-to-ospf
4. Enable OSPF on the logical interfaces.
   [edit routing-instances]lsdesignadmin1@host:ls-product-design# set pd-vr1 protocols ospf area 0.0.0.1 interface ge-0/0/5.1lsdesignadmin1@host:ls-product-design# set pd-vr1 protocols ospf area 0.0.0.1 interface lt-0/0/0.3

Results

From configuration mode, confirm your configuration by entering the show policy-options and show routing-instances commands. If the output does not display the intended configuration, repeat the configuration instructions in this example to correct it.

For brevity, this show command output includes only the configuration that is relevant to this example. Any other configuration on the system has been replaced with ellipses (...).

If you are done configuring the device, enter commit from configuration mode.

Verification

Confirm that the configuration is working properly.

• Verifying OSPF Interfaces
• Verifying OSPF Neighbors
• Verifying OSPF Routes

Verifying OSPF Interfaces

Purpose

Verify OSPF-enabled interfaces.

Action

From the CLI, enter the show ospf interface instance pd-vr1 command.

Interface           State   Area            DR ID           BDR ID          Nbrs
lt-0/0/0.3          DR      0.0.0.0         10.0.1.2        0.0.0.0            0
ge-0/0/5.1          DR      0.0.0.1         10.0.1.2        0.0.0.0            0

Verifying OSPF Neighbors

Purpose

Verify OSPF neighbors.

Action

From the CLI, enter the show ospf neighbor instance pd-vr1 command.

Address 	 Interface		State	  ID		   Pri	Dead
10.0.1.1	 plt0.1 		Full	  0.0.0.0	   128	  39

Verifying OSPF Routes

Purpose

Verify OSPF routes.

Action

From the CLI, enter the show ospf route instance pd-vr1 command.

Topology default Route Table:

Prefix             Path  Route      NH       Metric NextHop       Nexthop                         Type  Type       Type            Interface     Address/LSP
10.0.1.0/24        Intra Network    IP            1 lt-0/0/0.3
12.12.1.0/24       Intra Network    IP            1 ge-0/0/5.1