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Adding a Routing Instance

 

A routing instance is a collection of routing tables, interfaces, and routing protocol parameters. The set of interfaces belongs to the routing tables, and the routing protocol parameters control the information in the routing tables. There can be multiple routing tables for a single routing instance—for example, unicast IPv4, unicast IPv6, and multicast IPv4 routing tables can exist in a single routing instance. Routing protocol parameters and options control the information in the routing tables.

Each routing instance consists of sets of the following:

  • Routing tables

  • Interfaces that belong to these routing tables (optional, depending upon the routing instance type)

  • Routing option configurations

You can configure the following routing instances:

  • Forwarding—Use this routing instance type for filter-based forwarding applications. For this instance type, there is no one-to-one mapping between an interface and a routing instance. All interfaces belong to the default instance inet.0.

  • Virtual router—Use this for non-VPN-related applications. There are no virtual routing and forwarding (VRF) import, VRF export, VRF target, or route distinguisher requirements for this instance type.

To create a routing instance:

  1. Select Resources > Devices .

    The Devices page appears.

  2. Click the device name that you want to configure.

    The Device-Name page appears

  3. Click the Configuration tab.

    The Physical Interfaces, Routing Instances, and Zones tab appears.

  4. Click Routing Instances tab.

    The Routing Instances page appears.

  5. Click the plus icon (+) .

    The Create Routing Instance page appears.

  6. Complete the configuration settings according to the guidelines provided inTable 1.
  7. Click OK to save the changes.

Table 1: Fields on the Create Routing Instance Page

Field

Description

General Settings 

Name

Enter a unique string of alphanumeric characters, dashes, and underscores. The maximum length is 31 characters.

Description

Enter a description for the zone; the maximum length is 900 characters.

Instance Type

Select the routing instance type from the list. Select virtual-router for non-VPN-related application. Select forwarding for filter-based forwarding applications where interfaces are not associated with instances.

Interfaces

From the list of interfaces in the Available column, select the interfaces that you want to include in the new routing instance and click the greater-than icon (>). The selected interfaces are moved to the Selected column.