Interlevel filters allow you to control how routes are redistributed
between IS-IS levels 1 and 2. The redistribution of routes from level 2 to level 1 is called
route leaking. For more information, see Route Leaking.
To set an interlevel filter for redistribution from level
1 to level 2, use the following command:
configure
isis area area_nameinterlevel-filterlevel1-to-2 [policy | none] {ipv4 | ipv6}
To set an interlevel filter for redistribution from level
2 to level 1, use the following command:
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