transceiver power low trigger error-down

Function

The transceiver power low trigger error-down command enables an Ethernet optical interface to enter the error-down state when the optical power is low.

The undo transceiver power low trigger error-down command disabled an Ethernet optical interface from entering the error-down state when the optical power is low.

By default, an Ethernet optical interface does not enter the error-down state when the optical power is low.

Format

transceiver power low trigger error-down

undo transceiver power low trigger error-down

Parameters

None

Views

Ethernet interface view, GE interface view, XGE interface view, MultiGE interface view, 25GE interface view, 40GE interface view, 100GE interface view, port group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

Low optical power of the device may cause intermittent service interruption. To ensure that services are running properly, enable an interface to enter the error-down state when the optical power is low so that services can be switched in a timely manner.

Follow-up Procedure

An interface in Error-down state can be recovered using either of the following methods:

Manual recovery: If a few interfaces need to be recovered forcibly, run the shutdown and undo shutdown commands in the interface view. Alternatively, run the restart command in the interface view to restart the interfaces.
Automatic recovery: If a large number of interfaces need to be recovered, manual recovery is time consuming and some interfaces may be omitted. You can run the error-down auto-recovery cause transceiver-power-low interval interval-value command in the system view to enable automatic interface recovery and set the recovery delay time. An interface in Error-down state automatically recovers when the specified delay time expires.

Example

# Enable GE0/0/1 to enter the error-down state when the optical power is low.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] transceiver power low trigger error-down