During migration from a large-scale hierarchical virtual private LAN service (HVPLS) network to a provider backbone bridge Ethernet VPN (PBB-EVPN), HVPLS and PBB-EVPN will coexist for some time.
EVPN recursion suppression in case of next hop flapping prevents the system from processing changes in EVPN routes that recurse to a frequently flapping next hop, thereby reducing system resource consumption and CPU usage.
This section provides an example for configuring PBB-EVPN, which covers networking requirements, configuration precautions, configuration roadmap, configuration procedures, and configuration files.