Command Manual - STP
Quidway S6500 Series Ethernet Switches
Chapter 1 MSTP Configuration Commands
Huawei Technologies Proprietary
1-3
1.1.3 display stp
Syntax
display stp
[
instance instance-id
]
[
interface interface-list
|
slot
slot-num
]
[
brief
]
View
Any view
Parameter
instance-id
: Specifies the spanning tree instance ID, ranging from 0 to 16.
interface-list
: Ethernet port list, containing multiple Ethernet ports and expressed as
interface _list
= { {
interface_type interface_num | interface_name
} [
to
{
interface_type
interface_num | interface_name
} ] }&<1-10>. For detail descriptions of
interface_type
,
interface_num
and
interface_name
parameters, refer to the corresponding descriptions
in Port Command Manual. &<1-10> means that the preceding parameters can be
entered up to 10 times.
slot
slot-num
: Displays STP information of the specific slot.
brief
: Display the role, state and protection type of the port only.
Description
Using
display stp
command, you can view the state information and statistics
information of the spanning tree .
The MSTP state and statistics information can help analyze and maintain the network
topology and maintain the normal operation of MSTP.
If no STI ID or port list is specified, the command will display the spanning tree
information of all the instances on all the ports in port number order. If the instance ID is
specified, the command will display the spanning tree information of the specified
instance on all the port in port number order. If only the port list is specified, the
command will display the information about all the STIs on the port in port number order.
If both the STI ID and port list are specified, the command will displays the spanning
tree information of the specified instance on the specified port in the port list order of the
instance ID. If the aggregation port exists, only the instance information of the primary
port is displayed.
MSTP state information include:
1) Global CIST parameter: Protocol operation mode, switch priority in the CIST
instance, MAC address, Hello Time, Max Age, Forward Delay, Max Hops, CIST
common root (the primary or the secondary), external path cost of the switch to the
CIST common root, region root, internal path cost of the switch to the CIST
common root, CIST root port of the switch, and whether to enable BPDU
protection.
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