ECMP hardware forwarding is supported for IP over MPLS packets when an outgoing interface is configured as a physical port and a VE interface, or configured on an MPLS tunnel. When multiple routes use ECMP to reach a destination, hardware ECMP is automatically enabled.
ECMP load sharing for IP over MPLS is supported for 2 to 64 tunnels, with a default of eight tunnels.
The hash value for each incoming packet on the route target is calculated similar to IP ECMP. The Layer 3 and Layer 4 headers are used.