This command enables route leaking from level 2 to level 1 on an L1/L2 router.
| area_name | Specifies the router process for which this configuration change applies. |
| policy | Specifies a policy to control how L2 routes are leaked to L1. |
| block-all | Blocks all route leaking. |
| allow-all | Leaks all routes into level 1. |
| ipv4 | ipv6 | Applies the interlevel filter to IPv4 or IPv6. If neither IPv4 nor IPv6 is specified, this command applies to IPv4. |
block-all.
When a policy is supplied with this command, all routes are leaked unless explicitly denied in the policy. This command has no effect on level 1-only and level 2-only routers. For policies, the nlri match attribute is supported, and the permit and deny set attributes are supported.
The following command configures areax to leak all level 2 routes to level 1 for IPv4:
configure isis area areax interlevel-filter level 2-to-1 allow-all
This command was first available in ExtremeXOS 12.1.
This command is available on platforms with a Core license.
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