Configure IPv6 IS-IS Redistribution

Use this procedure to configure IS-IS redistribution for IPv6. In the Virtual Routing and Forwarding (VRF), just like in the Global Router, the IPv6 routes are not redistributed into IS-IS automatically. To advertise the VRF routes, you must explicitly redistribute one of the following protocols into IS-IS: v6direct, v6static, RIPng, OSPFv3, or BGPv6, within the context of a VRF. Routing between VRFs is also possible by using redistribution policies and injecting routes from the other protocols.

Note

Note

RIPng is supported only on the Global Router.

The VRF specific routes are transported in TLV 184 with the I-SID assigned to the VPNs. After extracting the IPv6 VPN reachability information, the IPv6 routes are installed in the route tables of the appropriate VRFs based on the I-SID association.

Before you begin

Change the VRF instance as required to configure IPv6 IS-IS redistribution on a specific VRF instance. Not all parameters are configurable on non-default VRFs.

Procedure

  1. In the navigation pane, expand Configuration > IPv6.
  2. Click IS-IS.
  3. Click the Redistribute tab.
  4. Click Insert.
  5. Complete the fields as required.
  6. Click Insert.
  7. Click Apply.

Redistribute Field Descriptions

Use the data in the following table to configure the Redistribute tab.

Name

Description

DstVrfId

Specifies the destination Virtual Routing and Forwarding (VRF) ID used in redistribution.

Protocol

Specifies the protocols that receive the redistributed routes.

SrcVrfId

Specifies the source Virtual Routing and Forwarding (VRF) ID used in redistribution.

RouteSource

Specifies the source protocol for the route redistribution entry.

Enable

Enables or disables a redistribution entry. The default is disabled.

RoutePolicy

Specifies the route policy to be used for the detailed redistribution of external routes from a specified source into the IS-IS domain.

Metric

Specifies the metric for the redistributed route. The default value is 0. Use a value that is consistent with the destination protocol.

MetricType

Specifies the metric type. Specifies a type1 or a type2 metric. For metric type1, the cost of the external routes is equal to the sum of all internal costs and the external cost. For metric type2, the cost of the external routes is equal to the external cost alone. The default is type2.
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