Static configuration of MAC-IP bindings with EVPN-VXLAN

We have added the functionality to allow static configuration of MAC-IP bindings on an interface, similar to configuring static MACs on an interface. This feature enables the static configuration of IP and MAC entries for crucial services provided by management and infrastructure hosts. It proves particularly advantageous in Internet Exchange Point (IXP) networks where participant Customer Edge routers (CEs) remain well-known and static, not transitioning to different Provider Edge (PE) devices.
You can now utilize a new feature that establishes a static link between an IP address and a MAC for a logical interface within a bridge domain or VLAN. When you provision a static MAC-IP entry on a PE, the PE will initiate a probe following an exponential backoff pattern. The probe will use an all-zero sender IP address on the associated interface. If the entity owning the IP to MAC entry responds to the probe, the system will learn the IP to MAC binding as static. Subsequently, it will be propagated to remote PEs through the BGP/EVPN Type 2 MAC advertisement route. The corresponding MAC will be recognized as a dynamic entry. If you want to deactivate the probing mechanism for learning the IP to MAC binding, you can do so by configuring a new configuration option [arp-nd-probe-disable]. Without probing, both the MAC and IP to MAC binding will be acquired from network traffic and communicated using EVPN.