Rstp Bpdu Flag Byte

Rstp Stages

Topology Change ACK Agreement Forwarding Learning f 00 Unknown _ 01 Alternative Backup 10 Root RSTP (802.1w) uses type 2, version 2 BPDUs, so an RSTP bridge can communicate with 802.1D on any shared link or with any switch running 802.1D. RSTP sends BPDUs and populates the flag byte in a slightly different manner than the manner used by 802.1D. An RSTP bridge sends a BPDU with its current information every hellotime period (2 seconds by default), even if it does not receive any BPDUs from the...