10-23-2006 05:37 AM - edited 03-05-2019 12:23 PM
Hi all, is it only the root switch that sends the bpdu's in a switched network, or do all switches send them every 2 seconds ?
10-23-2006 06:42 AM
Hi Carl,
Only root switch send the configuration BPDU every 2 seconds and all the other switches receives it and relays to the downstream switches.
However there is another type of BPDU known as TCN BPDUs which are generated by any switch if there is any topology change and that BPDU is fwded towards the root switch.
HTH
Ankur
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10-23-2006 09:21 AM
Also, with RSTP and MST, every switch sends bpdus every two seconds (and the particular TCN bpdu has disappeared).
Regards,
Francois
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