error-statistics threshold-event trigger error-down

Function

The error-statistics threshold-event trigger error-down command configures an interface to transit to the error-down state when the number of error packets received on the interface reaches the threshold.

The undo error-statistics threshold-event trigger error-down command restores the default setting.

By default, an interface does not transit to the error-down state when the number of error packets received on the interface reaches the threshold.

Format

error-statistics threshold-event trigger error-down

undo error-statistics threshold-event trigger error-down

Parameters

None

Views

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

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When an Ethernet interface receives excessive error packets, faults such as packet loss will occur. Because the interface is still in Up state, traffic is still transmitted on the interface even if a backup link is configured. To avoid impact on services, you can configure the interface to change to the Error-down state when it receives excessive error packets. When the number of received error packets on the interface exceeds the threshold, the system disables the interface and records the interface status as ERROR DOWN(error-statistics) state (indicating that the interface is Down because of excessive error packets). Services are then switched to the backup link immediately.

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 error-statistics 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

# Configure GE0/0/1 to transit to the error-down state when the number of error packets received on the interface reaches the threshold.

<HUAWEI> system-view
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] error-statistics threshold-event trigger error-down