IPv6 Routes from another routing process/protocol can also be redistributed to an IPv6 IS-IS routing
process. The corresponding redistribute command is entered in the address family ipv6 context of
the IS-IS routing process:

                Router(config-router-af)# redistribute protocol [process-id] \\
                [level-1 | level-1-2 | level-2] [metric metric-value] \\
                [metric-type {internal | external}] [route-map map-name]

The protocol argument can be one of the following keywords: bgp, connected, isis, rip or static.

IPv6 routes learned on one IS-IS level may also be redistributed to another level of the same process. The corresponding redistribute command in this case includes the keyword into:

                Router(config-router-af)# redistribute protocol \\
                [level-1 [into level-2] | level-1-2 | level-2 \\
                [into level-1]]

By default, routes learned by Level 1 instances are redistributed by Level 2 instance.

Note: The protocol argument must be isis in this configuration of the redistribute command.

Examples

a) In the following example bgp routes from bgp process 64500 are redistributed into the IS-IS routing domain with metric value:

Router(config-router-af)# redistribute bgp 64500 \\
                                                   metric 100 route-map isismap

b) This example shows how IS-IS Level 1 routes are distributed in Level 2 domain:

Router(config-router-af)# redistribute isis level-1 into level-2