Will RSTP BPDUs be encapsulated in tagged Ethernet frames?

Question

RSTP(Rapid Spanning Tree) is configured on a bridge. All ports of this bridge are "trunk" ports and are part of vlan “x”. Will the BPDUs sent out of this bridge be tagged?

Answer 1

No. RSTP BPDUs are never tagged irrespective of the port type(access/trunk). Because RSTP BPDUs on being received by a bridge are sent to the CPU for processing if the bridge understands RSTP or are discarded. So, they need not be forwarded.