Symptom
Even if installing a production SMU(CSCwa39799), we found that MLA(uloop avoidance) is still not kicked properly when delay-metric cost down test with single-segment ECMP test case.
Conditions
Flex-algo is defined under router isis as follows;
flex-algo 128
priority 128
metric-type delay <---- algo128 : delay-metric!!!
advertise-definition
!
flex-algo 129
priority 128 <---- algo129 : IGP-metric!!!
advertise-definition
And when cost up once and then down, changed IGP metric is wrongly added to delay-metric for MLA evaluation.
This issue is found under ECMP test case. (see topology)
Workaround
There is no workaround.
Further Problem Description
IGP metric and delay-metric are changed simultaneously.
