HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 106
display stp history
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Parameters |: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide. begin: Displays the first line that matches the specified regular expression and all lines that follow. exclude: Displays all lines that do not match the specified regular expression. include: Displays all lines that match the specified regular expression. regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters. Description Use display stp down-port to display information about ports shut down by spanning tree protection functions. Examples # Display information about ports shut down by spanning tree protection functions. display stp down-port Down Port Reason GigabitEthernet1/0/1 BPDU-Protected GigabitEthernet1/0/2 Formatfrequency-Protected Table 27 Command output Field Down Port Reason Description Name of a port shut down by the spanning tree protection functions. Reason that the port was shut down: • BPDU-Protected-BPDU guard function. • Formatfrequency-Protected-MSTP BPDU format frequent change protection function. display stp history Syntax View display stp [ instance instance-id ] history [ slot slot-number ] [ | { begin | exclude | include } regular-expression ] Any view Default level 0: Visit level Parameters instance instance-id: Displays the historical port role calculation information of a specific MSTI. The value of instance-id ranges from 0 to 32, where 0 represents the CIST. slot slot-number: Displays the historical port role calculation information on the specified IRF member switch. slot-number represents the number of the member number of the device in the IRF. If this keyword-argument combination is not specified, this command displays the historical port role calculation information on all IRF member switches. 98