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Configuring ECN Overlay
On a VXLAN network, you can configure the ECN overlay function in the scenario where the ECN field in the outer IP header of a VXLAN packet needs to be mapped to the inner IP header of the original packet after VXLAN packet decapsulation is performed, so that the ECN mark in the inner IP header is the same as that in the outer IP header.
# Configure the ECN overlay function to map the outer ECN field to the inner ECN field.
<HUAWEI> system-view [~HUAWEI] assign forward nvo3 egress mark-ecn enable [*HUAWEI] commit