h3cProtocolVlanProtocolType
1.3.6.1.4.1.43.45.1.10.2.16.1.5.1.3
Specify protocol types supported by a protocol-based VLAN.
Now protocols supported on layer 3 are ip, ipx, at, ipv6, etc.
Now protocols supported on layer 2 are llc, snap, ethernetii, etc.
For details, see description of h3cProtocolVlanProtocolTypeValue.