Configuration guidelines
If the PVID of a port is a voice VLAN, the 802.1X function cannot take effect on the port. For more information about voice VLANs, see Layer 2—LAN Switching Configuration Guide.
802.1X is mutually exclusive with link aggregation and service loopback group configuration on a port.
Do not use the BPDU drop feature on an 802.1X-enabled port. The BPDU drop feature discards 802.1X packets arrived on the port.