H19-401_V1.0 · Question #601
end.X SID After manually configuring a static SID, the dynamically generated SID will be deleted from the FIB.
The correct answer is A. True. In Segment Routing, when a static SID is manually configured for a prefix or segment, the device treats that static entry as authoritative and automatically removes the conflicting dynamically generated SID from the FIB. This prevents forwarding ambiguity that would arise if…
Question
end.X SID After manually configuring a static SID, the dynamically generated SID will be deleted from the FIB.
Options
- ATrue
- BFalse
How the community answered
(45 responses)- A76% (34)
- B24% (11)
Explanation
In Segment Routing, when a static SID is manually configured for a prefix or segment, the device treats that static entry as authoritative and automatically removes the conflicting dynamically generated SID from the FIB. This prevents forwarding ambiguity that would arise if both entries coexisted, since the device cannot have two SID assignments for the same segment without a clear priority winner. Static configuration always takes administrative precedence over dynamic assignment, so the dynamic entry is not merely deprioritized - it is actively deleted from the FIB. Option B is incorrect because the removal of the dynamic SID is not optional or conditional; it is the defined behavior when a static SID is introduced.
Memory tip: Treat this like a static route overriding a dynamic routing protocol route - when you manually configure a static entry, the dynamic one is displaced and removed, not kept alongside it.
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