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Configuring IS-IS for CLNS

You can configure IS-IS to exchange CLNS routes within a CLNS island. To export BGP routes into IS-IS, you must configure and apply an export policy. For more information about policies, see Configuring Routing Policies.

If you have a pure CLNS island—an island that does not contain any IP devices—you must disable IPv4 and IPv6 routing.

To configure IS-IS for CLNS:

  1. Navigate to the top of the configuration hierarchy in either the J-Web or the CLI configuration editor.
  2. Perform the configuration tasks described in Table 24.
  3. If you are finished configuring the router, commit the configuration.
  4. If applicable, go on to one of the following tasks:

Table 24: Configuring IS-IS to Exchange CLNS Routes

Task

J-Web Configuration Editor

CLI Configuration Editor

Navigate to the Routing instances level in the configuration hierarchy.
  1. In the J-Web interface, select Configuration>View and Edit>Edit Configuration.
  2. Next to Routing instances, click Configure or Edit.
  3. Under Instance name, click aaaa.

From the [edit] hierarchy level, enter

edit routing-instances aaaa

Enable CLNS routing.
  1. Next to Protocols, click Configure.
  2. Next to Isis, click Configure.
  3. Next to CLNS routing, select the Yes box.

Enter

set protocols isis clns-routing

Enable IS-IS on all interfaces.

(See the interface naming conventions in the J-series Services Router Basic LAN and WAN Access Configuration Guide.)
  1. Next to Interface, click Add new entry.
  2. In the Interface name box, type all.
  3. Click OK.

Enter

set protocols isis interface all

(Optional) To configure a pure CLNS network, disable IPv4 and IPv6 routing.
  1. Next to No ipv4 routing, select the Yes box.
  2. Next to No ipv6 routing, select the Yes box.
  3. Click OK.

Enter

set protocols isis no-ipv4-routing no-ipv6-routing

Define the BGP export policy name—for example, dist-bgp—and the family and protocol.
  1. On the main Configuration page next to Policy options, click Configure or Edit.
  2. Next to Policy statement, click Add new entry.
  3. In the Policy name box, type dist-bgp.
  4. Next to From, click Configure.
  5. In the Family list, select iso.
  6. Next to Protocol, click Add new entry.
  7. In the Value list, select bgp.
  8. Click OK until you return to the Policy statement page.

From the [edit] hierarchy level, enter

set policy-options policy-statement dist-bgp from family iso protocol bgp

Define the action for the export policy.
  1. Next to Then, click Configure.
  2. In the Accept reject list, select accept.
  3. Click OK until you return to the main Configuration page.

From the [edit] hierarchy level, enter

set policy-options policy-statement dist-bgp then accept

Apply the export policy to IS-IS.
  1. On the main Configuration page next to Routing instances, click Configure or Edit.
  2. Next to aaaa, click Protocols.
  3. Next to Isis, click Edit.
  4. Next to Export, click Add new entry.
  5. In the Value box, type dist-bgp.
  6. Click OK until you return to the Instance page.

From the [edit] hierarchy level, enter

set routing-instances aaaa protocols isis export dist-bgp

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