strict-asla-based-flex-algorithm
Syntax
strict-asla-based-flex-algorithm;
Hierarchy Level
[edit logical-systems name protocols isis source-packet-routing], [edit logical-systems name routing-instances name protocols isis source-packet-routing], [edit logical-systems name tenants name routing-instances name protocols isis source-packet-routing], [edit protocols isis source-packet-routing], [edit routing-instances name protocols isis source-packet-routing], [edit tenants name routing-instances name protocols isis source-packet-routing]
Release Information
Statement introduced in Junos OS 21.3R1.
Description
Configure IS-IS to ignore links that do not have TE Attributes advertised in Flex-Algo specific Application-Specific Link Attribute (ASLA) sub-TLVs. This is applicable only to the following TE attribute sub-TLVs:
-
Min unidirectional link delay
-
TE default metric
-
Administrative group
Note:If you do not enable strict ASLA-based flexible algorithm, but have routers in your network that do not advertise ASLA sub-TLVs, the route computation of the flexible algorithm could be incorrect and might cause network issues such as routing loops.
Advertising Delay-Metric in Flex Algo ASLA
You can advertise delay-metric inside flex algo Application Specific Link Attributes (ASLA). This functionality is essential in a multi-vendor deployment running latency-based flex algo.
Required Privilege Level
routing