Does Catalyst send the BPDU on following settings.

[kosuke watanabe]

Hi All,

Does Catalyst send the BPDU on following settings.
Please tell me.

--
no spanning-tree vlan xx

interface FastEthernet0/x
switchport access vlan xx
spanning-tree portfast

--
Regards,

[Rolf Fischer · Accepted solution]

Hi

no spanning-tree vlan xx

this command disables the spanning-tree instance for VLAN xx in PVST/Rapid-PVST mode. The port then does neither send BPDUs nor process received BPDUs [*] and the port's spanning-tree commands have no effect.

Are you doing this for learning purposes? In a production environment its generally not recommended to disable spanning-tree.

HTH
Rolf

[*]: I believe the switch would drop BPDUs received on that port rather than flooding it like "normal" multicast, but I'm not quite sure.

[kosuke watanabe]

Thanks so much !!