Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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advertise

Leak routes between levels (distribute IP prefixes between Level 1 and Level 2 and vice versa).

Syntax

advertise {level1-into-level2 | level2-into-level1} prefix-list-name

To return to the default, use the no advertise {level1-into-level2 | level2-into-level1}[ prefix-list-name] command.

Parameters

level1-into-level2	Enter the keywords `level1-into-level2` to advertise Level 1 routes into Level 2 LSPs. This setting is the default.
level2-into-level1	Enter the keywords `level2-into-level1` to advertise Level 2 inter-area routes into Level 1 LSPs. This behavior is described in RFC 2966.
prefix-list-name	Enter the name of a configured IP prefix list. Routes meeting the criteria of the IP Prefix list are leaked.

Defaults

level1-into-level2 (Level 1 to Level 2 leaking enabled.)

Command Modes

ROUTER ISIS ( for IPv4)
CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 ( for IPv6)

Supported Modes

Full–Switch

Command History

Version	Description
9.9(0.0)	Introduced on the FN IOM.
9.2(0.0)	Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

You cannot disable leaking from one level to another; however, you can regulate the rate flow from one level to another using an IP Prefix list. If you do not configure the IP Prefix list, all routes are leaked.

You can find more information in IETF RFC 2966, Domain-wide Prefix Distribution with Two-Level IS-IS .