After an engineer clears the EVPN database on a leaf, MAC entries b…

Question

After an engineer clears the EVPN database on a leaf, MAC entries begin returning. From where do they repopulate?

Accepted Answer

From renewed local learning on access interfaces plus fresh EVPN advertisements from peers — Wipe the EVPN notebook and it fills back in two ways: hosts talk locally again, and peers re-advertise their Type-2s. The underlay IGP and DHCP option 82 are not your MAC teachers here.

Answer

Only from the spine underlay IGP redistributing MAC addresses as host routes

Answer

Only from DHCP option 82 bindings stored on the management VRF

Answer

From a one-time static dump file that Junos writes at first boot solely

After an engineer clears the EVPN database on a leaf, MAC entries begin returning. From where do they repopulate?

Short Explanation

Full Explanation