R21xx-HP FlexFabric 11900 Layer 2 LAN Switching Command Reference

101
display stp
Use display stp to display the spanning tree status and statistics information. Based on the information,
you can analyze and maintain the network topology or determine whether the spanning tree is working
correctly.
Syntax
In standalone mode:
display stp [ instance instance-list ] [ interface interface-list | slot slot-number ] [ brief ]
In IRF mode:
display stp [ instance instance-list ] [ interface interface-list | chassis chassis-number slot slot-number ]
[ brief ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
instance instance-list: Displays the status and statistics information of the MSTIs that are specified by an
instance list, in the format of instance-list = { instance-id [ to instance-id ] }&<1-10>, where &<1-10>
indicates that you can specify up to 10 instances or instance ranges. The value range for the instance-id
argument is 0 to 4094, and the value 0 represents the CIST.
interface interface-list: Displays the spanning tree status and statistics on the ports that are specified by
a port list, in the format of interface-list = { interface-type interface-number [ to interface-type
interface-number ] }&<1-10>, where &<1-10> indicates that you can specify up to 10 ports or port
ranges.
brief: Displays brief spanning tree status and statistics. If this keyword is not specified, the command
displays the detailed spanning tree status and statistics.
slot slot-number: Displays the spanning tree status and statistics on the specified card. The slot-number
argument represents the slot number of the card. If this option is not specified, this command displays the
spanning tree status and statistics on all cards. (In standalone mode.)
chassis chassis-number slot slot-number: Displays the spanning tree status and statistics on the specified
card of the specified IRF member device. The chassis-number argument represents the ID of the IRF
member device. The slot-number argument represents the slot number of the card. If this option is not
specified, this command displays the spanning tree status and statistics on all cards of all member
devices in the IRF fabric. (In IRF mode.)
Usage guidelines
In STP or RSTP mode:
• If you do not specify any port, this command displays the spanning tree information for all ports.
The displayed information is sorted by port name.
• If you specify a port list, this command displays the spanning tree information for the specified ports.
The displayed information is sorted by port name.
In MSTP mode: