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definition

Syntax

Hierarchy Level

Description

Configure the flex-algorithm definition (FAD) and specify the parameters of the definition. IS-IS calculates the path based on these specified parameters of the FAD. We recommend configuring flexible algorithm on only a couple of routers to provide redundancy and to avoid conflicts.

Options

spf

Normal SPF of type 0

strict-spf

Strict SPF

metric-type

Specify the metric type that you would like to use in your network.

  • Values:

    • delay-metric— Specify this option to enable minimum unidirectional link delay metric (minimum latency).

    • igp-metric— Specify this option to use the IGP route metric instead of the traffic engineering metric.

    • te-metric— Specify this option to use the configured traffic engineering metric instead of the IGP metric if you have enabled traffic engineering on the device.

priority

Specify a priority to the flexible algorithm advertisement. IS-IS prioritizes a particular FAD advertisement over another FAD based on your assigned priority.

  • Range: 0 through 255

use-flex-algorithm-prefix-metric

Specify this option to advertise FAD Flags sub-TLV with M flag set. Flex-Algo path computation will use FAPM only if the winner FAD has this flag set to true.

The remaining statements are explained separately. See CLI Explorer.

Required Privilege Level

routing

Release Information

Statement introduced in Junos OS Release 19.4R1.