MFLP_1.3.6.1.4.1.2011.5.25.160.3.1 hwMflpIfBlock

Trap Buffer Description

The interface turned to block state. (VLAN ID=[vlanid], Interface Name=[acifname], Block Time=[blocktime], Block Reason=[blockreason], DetectMAC=[mac])

An interface is blocked.

Trap Attributes

Trap Attribute	Description
Alarm or Event	Alarm
Trap Severity	Warning
Mnemonic Code	hwMflpVlanAcBlock
Trap OID	1.3.6.1.4.1.2011.5.25.160.3.1
MIB	HUAWEI-MFLP-MIB
Alarm ID	0x00F10212
Alarm Name	hwMflpIfBlock
Alarm Type	communicationsAlarm
Raise or Clear	Raise
Match trap	MFLP_1.3.6.1.4.1.2011.5.25.160.3.2 hwMflpIfResume

Trap Buffer Parameters

Parameter	Description
vlanid	VLAN ID
acifname	Interface name
blocktime	Blocking time
blockreason	Reason for the blocking
mac	Detected MAC address

VB Parameters

VB OID	VB Name	VB Index
1.3.6.1.4.1.2011.5.25.160.1.1.1.8	hwMflpVlanCfgIfName	hwMflpVlanId
1.3.6.1.4.1.2011.5.25.160.1.1.1.6	hwMflpVlanCfgBlockTime	hwMflpVlanId
1.3.6.1.4.1.2011.5.25.160.1.1.1.9	hwMflpVlanCfgAlarmReason	hwMflpVlanId
1.3.6.1.4.1.2011.5.25.160.1.1.1.11	hwMflpVlanDetectMAC	hwMflpVlanId

Impact on the System

Traffic on interface in the VLAN cannot be forwarded.

Possible Causes

Cause 1: The interface has been blocked for VLAN loop, and the port has already been permanently blocked.
Cause 2: The interface has been blocked for VLAN loop, and the loop has already been punished times times.

Procedure

Cause 1: The interface has been blocked for VLAN loop, and the port has already been permanently blocked.
1. Run the display current-configuration command to check whether the loopback local command is configured on interfaces corresponding to the VLAN.
- If the loopback local command is configured on interfaces corresponding to the VLAN, delete the command configuration and check whether the alarm is cleared. If the alarm persists, go to Step 2.
- If the loopback local command is not configured on interfaces corresponding to the VLAN, go to Step 2.
2. Log in to the device and run the reset loop-detect eth-loop vlan vlan-id { all | interface interfacetype interfacenumber } command to unblock the interfaces and check whether hwMflpIfBlock_clear is reported. If hwMflpVlanAcResume is not reported, go to Step 3.

3. Collect alarm information and configuration information, and then contact technical support personnel.
Cause 2: The interface has been blocked for VLAN loop, and the loop has already been punished times times.
1. Run the display current-configuration command to check whether the loopback local command is configured on interfaces corresponding to the VLAN.
- If the loopback local command is configured on interfaces corresponding to the VLAN, delete the command configuration and check whether the alarm is cleared. If the alarm persists, go to Step 2.
- If the loopback local command is not configured on interfaces corresponding to the VLAN, go to Step 2.
2. Check whether the interface recovers after the block-time specified in the loop-detect eth-loop command expires. If the interface does not recover, go to Step 3.

3. Collect alarm information and configuration information, and then contact technical support personnel.