TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 CLI Reference Guide Guide - Page 207
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Chapter 23 MSTP Commands MSTP (Multiple Spanning Tree Protocol), compatible with both STP and RSTP and subject to IEEE 802.1s, can disbranch a ring network. STP is to block redundant links and backup links as well as optimize paths. 23.1 debug spanning-tree Description The debug spanning-tree command is used to enable debuggning of spanning-tree activities. To disable the debugging function, please use no debug spanning-tree command. Syntax debug spanning-tree { all | bpdu receive | bpdu transmit | cmpmsg | errors | flush | init | migration | proposals | roles | state | tc } no debug spanning-tree { all | bpdu receive | bpdu transmit | cmpmsg | errors | flush | init | migration | proposals | roles | state | tc } Parameters all -- Display all the spanning-tree debug messages. bpdu receive -- Display the debug messages of the received spanning-tree bridge protocol data unit (BPDU). bpdu transmit -- Display the debug messages of the sent spanning-tree BPDU. cmpmsg -- Display the message priority debug messages. errors -- Display the MSTP error debug messages. flush -- Display the address table flushing debug messages. init -- Display the data structure initialization debug messages. migration -- Display the version migration debug messages. proposals -- Display the MSTP handshake debug messages. roles -- Display the MSTP interface role switchling debug messages. state -- Display the MSTP interface state change debug messages. tc -- Display the MSTP topology event debug messages. Command Mode Privileged EXEC Mode 194