Resets the partner Spanning Tree Protocol version to the configured version.
|stpd_name||Specifies an STPD name on the switch.|
|port_list||Specifies the port list, which can be separated with a comma or a dash.|
|protocol-migration||Resets the partner protocol mode to configured mode.|
STP detects the spanning tree version on a network and sends out the equivalent BPDU. If this switch receives a legacy IEEE 802.1D configuration BPDU (a BPDU with the protocol version set to 0), Protocol Migration feature supports the forcefully allowing the user to choose the version, where a switch supporting MSTP is forced to behave as STP or RSTP.
For example, three bridges on shared media, two of are configured dot1w (RSTP) and one is dot1d (legacy STP) mode
These bridges will transmit STP BPDUs on their connected ports since one of the peers is in dot1d mode. If the dot1d mode configured bridge leaves this shared media the remaining two bridges will keep sending STP BPDUs even though they should use RTP BPDUs normally. By using this feature we can clear the STP BPDU transmission and starts sending the RSTP BPDUs.
The following example resets the protocol migration for the port 1:10 in STP domain r1:
clear stpd r1 ports 1:10 protocol-migration
This command was first available in ExtremeXOS 15.7.1.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.