Dynamic load balancing in an EVPN-VXLAN network

Junos OS support dynamic load balancing in an EVPN-VXLAN network. When your EVPN-VXLAN network includes a multihomed device that can be reached through multiple virtual tunnel endpoints (VTEPs) that share a common Ethernet segment identifier (ESI), dynamic load balancing works as follows:

• The EVPN control plane (overlay) identifies the common ESI as the next hop for a destination device with a particular MAC address.
• Based on the parameters in a packet, the forwarding plane in the switch (hardware) dynamically chooses one of the VTEPs associated with the ESI. The VTEP then forwards the packet along the selected underlay path to the destination device.