Seeing "In Discovery" in the routing table

Hey folks,

So, in getting my IKEA Tradfri and Xiaomi hub up and running I occasionally see these entries in the routing table:

status:In Discovery, age:0, routeRecordState:2, concentratorType:High Ram, [null, 0000] via [null, 0000]

Anyone know what they're about? Here it is in context:

Parent child parameters
EzspGetParentChildParametersResponse [childCount=0, parentEui64=0000000000000000, parentNodeId=65535]

Child Data

Neighbor Table Entry
[Study Lamp 1, 00F6], LQI:252, age:4, inCost:3, outCost:7
[Bedroom Repeater, 1F82], LQI:255, age:3, inCost:1, outCost:1
[Study Lamp 3, 38B4], LQI:254, age:4, inCost:1, outCost:7
[Main Repeater, 39CC], LQI:255, age:4, inCost:1, outCost:1
[Study Lamp 2, 503C], LQI:254, age:4, inCost:1, outCost:7
[Study Repeater, CB20], LQI:255, age:4, inCost:1, outCost:1
[Living Room Repeater, D47D], LQI:255, age:3, inCost:1, outCost:1

Route Table Entry
status:Active, age:64, routeRecordState:0, concentratorType:None, [Other Button, E7C4] via [Main Repeater, 39CC]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Study Button, 89B6] via [Study Repeater, CB20]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Test Wireless Switch, 24AC] via [Study Repeater, CB20]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Study Lamp 1, 00F6] via [Study Repeater, CB20]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Hallway Wireless Switch, D6A8] via [Study Repeater, CB20]
status:Active, age:64, routeRecordState:0, concentratorType:None, [Study Lamp 2, 503C] via [Study Repeater, CB20]
status:In Discovery, age:0, routeRecordState:2, concentratorType:High Ram, [null, 0000] via [null, 0000]
status:Unused
status:Unused
status:Unused
status:Unused
status:Unused
status:Unused
status:Unused
status:Unused
status:Unused

They appear for a minute, then disappear.

When I'm scanning with my Xbee, I see the dni of the HE Zigbee stick as 0000
Have you been adding devices perhaps? Not sure if will show up during that or not.

I see that too. No idea, but would like to know.

0000 is the hub; possibly you are seeing the normal 'hub periodically sending a message to itself to make sure the radio is alive on a quiet network' mentioned here: Zigbee log showing device 0000(0)

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