Huawei VRP VxLAN with CE12800 not work

[BurlyLuo]

<ce1>dis vxlan vni 5 verbose 
    BD ID                  : 5
    State                  : up
    NVE                    : 18
    Source Address         : 1.1.1.1
    Source IPv6 Address    : -
    UDP Port               : 4789
    BUM Mode               : head-end
    Group Address          : -
    Peer List              : 2.2.2.2 
    IPv6 Peer List         : -
<ce1>

but vxlan still failed.
attach the clab files:

vxlan.zip