Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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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 is enabled.)

level2–into-level1 (Level 2 to Level 1) leaking is disabled.

Command Modes
  • ROUTER ISIS (for IPv4)
  • CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100–ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000-ON.
9.5(0.1)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.12.0
Introduced on the S4810.
8.3.11.1
Introduced on the Z9000.
7.5.1.0
Added IPv6 ISIS support.
6.3.1.0
Version 6.3.1.0 Introduced
Usage Information

You cannot disable leaking from Level 1 to Level 2. Also, you cannot enable leaking from Level 2 to Level 1. 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 Level 1 routes are leaked.

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


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