TP-Link T1500G-8T T1500G-10PSUN V1 CLI Reference Guide Guide - Page 209

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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 196

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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
196