stp point-to-point (Layer 2 interface view)

Function

The stp point-to-point command sets the link type of a port.

The undo stp point-to-point command restores the default link type.

By default, the link type of the ports on the device is auto. That is, the spanning tree protocol detects whether a port is connected to a point to point (P2P) link.

Format

stp point-to-point { auto | force-false | force-true }

undo stp point-to-point

Parameters

Parameter	Description	Value
auto	Indicates that the spanning tree protocol detects automatically whether the port is connected to a P2P link.	-
force-false	Indicates that the link type is non-P2P.	-
force-true	Indicates that the link type is P2P.	-

Parameter

Description

Value

auto

Indicates that the spanning tree protocol detects automatically whether the port is connected to a P2P link.

force-false

Indicates that the link type is non-P2P.

force-true

Indicates that the link type is P2P.

Views

Layer 2 100GE interface view, Layer 2 10GE interface view, 25GE-L2 view, 400GE-L2 view, Layer 2 40GE interface view, Layer 2 50GE interface view, Layer 2 Eth-Trunk interface view, Layer 2 GE interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mstp	write

Usage Guidelines

Usage Scenario

On a Layer 2 network running STP, if a port of a device is connected to a non-P2P link, the port cannot perform fast status transition.

If a port works in full-duplex mode, the port is connected to a P2P link, and force-true can be set in the stp point-to-point command.

If a port works in half-duplex mode, run the stp point-to-point force-true command to forcibly set the type of the link to which the port is connected to P2P, implementing rapid network convergence.

Configuration Impact

The stp point-to-point command configuration on a port takes effect in all spanning tree instances where the port resides.

Example

# Set the link type of GE 0/1/1 to P2P.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/1
[~HUAWEI-GigabitEthernet0/1/1] portswitch
[*HUAWEI-GigabitEthernet0/1/1] stp point-to-point force-true