F20-YG: Yes
Rationale
In the pinned Ironwood transit path, router.handleTraffic selects the next peer from the packet path/watermark using shared router topology and peer state. Path-notification transit forwards before endpoint path-cache updates; destination sessions and originating path caches are distinct from transit forwarding. No final-flow/circuit entry is required at each intermediate node. Queues, topology and adjacency state remain.
Assessment method
Read-only code analysis
Source context
Pinned Ironwood forwarding code