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OSPF does not convert the area to NSSA
Open, Requires assessmentPublicBUG


The simple topology. Basic OSPF configuration. And redistribution of 1 static route.

As result the external route will be advertised in LSA type 5.
If we configure R2 and R3 with command set protocols ospf area 1 area-type nssa it will not lead to change LSA type 5 to LSA type 7 on R3.

But if we save configuration and reboot R2 and R3 the command set protocols ospf area 1 area-type nssa converts to set protocols ospf area 1 area-type nssa translate 'candidate' on both routers despite this command should be applied only on ABR. After reboot LSA type 7 appears on R2 and R3, but on R3 external route also presented as LSA type 5 what shouldn't be.


Difficulty level
Unknown (require assessment)
VyOS 1.4-rolling-202101110217
Why the issue appeared?
Will be filled on close
Is it a breaking change?
Unspecified (possibly destroys the router)

Event Timeline

Yes, it is the second part of my appeal. But the first one is that set protocols ospf area <number> area-type nssa command does not work at all. It does not lead to generate LSA type 7.
Only after reboot the nodes in NSSA start working.
But I think it does not makes sense try to fix something before FRR will be fixed.