Example: Configuring IS-IS for CLNS

This example shows how to create a routing instance and enable IS-IS protocol on all interfaces.

• Requirements
• Overview
• Configuration
• Verification

Requirements

Before you begin, configure the network interfaces. See the Junos OS Interfaces Configuration Guide for Security Devices.

Overview

The configuration instructions in this topic describe how to create a routing-instance called aaaa, enable IS-IS on all interfaces, and define BGP export policy name (dist-bgp), family (ISO), and protocol (BP), and apply the export policy to IS-IS.

Configuration

CLI Quick Configuration

To quickly configure IS-IS for CLNS, copy the following commands and paste them into the CLI.

Step-by-Step Procedure

The following example requires you to navigate various levels in the configuration hierarchy. For instructions on how to do that, see Using the CLI Editor in Configuration Mode.

To configure IS-IS for CLNS:

1. Configure the routing instance.
   [edit]user@host# edit routing-instances aaaa
2. Enable CLNS routing.
   [edit routing-instances aaaa]user@host# set protocols isis clns-routing
3. Enable IS-IS on all interfaces.
   [edit routing-instances aaaa]user@host# set protocols isis interface all
4. (Optional) Disable IPv4 and IPv6 routing to configure a pure CLNS network .
   [edit routing-instances aaaa]user@host# set protocols isis no-ipv4-routing no-ipv6-routing
5. Define the BGP export policy name, family, and protocol.
   [edit policy-options]user@host# set policy-statement dist-bgp from family iso protocol bgp
6. Define the action for the export policy.
   [edit policy-options]user@host# set policy-statement dist-bgp then accept
7. Apply the export policy to IS-IS.
   [edit routing-instances aaaa]user@host# set protocols isis export dist-bgp

Results

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

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

Verification

To confirm that the configuration is working properly, perform these tasks:

• Verifying Routing-Instance for CLNS
• Verifying IS-IS for CLNS

Verifying Routing-Instance for CLNS

Purpose

Verify that the policy options are enabled for the routing instance.

Action

From operational mode, enter the show routing-instances command.

Verifying IS-IS for CLNS

Purpose

Verify that IS-IS is enabled.

Action

From operational mode, enter the show protocols command.

Related Topics

• Junos OS Feature Support Reference for SRX Series and J Series Devices
• CLNS Configuration Overview
• Understanding IS-IS for CLNS
• Configuring CLNS for IS-IS in the Junos Routing Protocols Configuration Guide
• clns-routing in the Junos Routing Protocols Configuration Guide
• Verifying a CLNS VPN Configuration