flood-as-unknown-unicast
Syntax
flood-as-unknown-unicast;
Hierarchy Level
[edit interfaces irb unit name family inet address <local-ip-address>/<prefix-length> | arp <local-ip-address> mac <local-ip-address>]
Description
You can configure the flood-as-unknown-unicast statement for IRB
interfaces located in any Layer 2 domain.
You can enable the flood-as-unknown-unicast statement for unicast MAC
addresses. When a switch receives traffic from a unicast MAC address that is the
destination MAC address, the switch floods the packets on the VLAN where the IRB
interface is located.
When a Microsoft load balancer cluster is connected to a device in an EVPN-VXLAN or
Layer2 EVPN-MPLS domain, the nodes in the cluster don't export their virtual MAC
addresses along with their address resolution protocol (ARP ) packets. In this case, the
switch doesn't learn the virtual MAC addresses and drops any traffic coming from those
addresses. When you enable the flood-as-unknown-unicast statement for a
virtual MAC address on your switch, the switch can learn the Microsoft load balancer
node's virtual MAC address. When the virtual MAC address is the destination MAC, the
switch floods the traffic on the Microsoft load balancer nodes.
If you've configured assisted replication, flooding occurs on assisted replication virtual tunnel endpoints (VTEP), not regular VTEPs.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
Release Information
Statement introduced in Junos OS Release 22.4R1.