How to enable a switch to transparently transmit BPDUs that are discarded by default

You can enable a switch to transparently transmit BPDUs in the following modes:

1. Run the bpdu bridge enable command to enable the port bridge function. Then the switch can transparently transmit all BPDUs.

2. Globally specify the group MAC address of BPDU for the inbound and outbound ports of two edge switches on the network, and enable the L2PT transparent transmission function of the protocol for the ports.

Incoming BPDUs are replaced with the group MAC address, converted to data packets, and forwarded in the VLAN. Configure the L2PT function in the outbound port to replace the group MAC address with the BPDU MAC address.

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