The physical port cannot join in Eth-Trunk and its reasons.
VRP3.10-2xxx version of NE40
1. It does not support intermixing: GE interface cannot join in Eth-Trunk including FE interface. In contrary FE cannot join in Eth-Trunk including GE interface.
2. The physical port is not nake configuration.
3. There are 16 members of Eth-Trunk.
4. The physical port is not up.
5. It does not support crossboard binding.
6. Illegal MAC address such as MAC 0xFFFFFFFFFFFF.
Bind many Ethernet port as one logical port, namely, Eth-Trunk interface.