ALM-3276800213 MAC address flapping occurs in a BD

Description

L2IFPPI/4/MFLPBDALARM: OID [OID] MAC move detected, bridge-domain ID=[GAUGE], original-port=[OCTET1], flapping-port 1=[OCTET2], flapping-port 2=[OCTET3], [OCTET4].

MAC address flapping occurs in a BD.

Attribute

Alarm ID	Alarm Severity	Alarm Type
3276800213	Warning	environmentalAlarm

Parameters

Name	Meaning
OID	Indicates the MIB object ID of the alarm.
GAUGE	Indicates the ID of a BD.
OCTET1	Indicates the number of the interface that learns the MAC address earlier.
OCTET2	Indicates the number of the interface that learns the MAC address later.
OCTET3	Indicates the number of the interface that learns the MAC address later.
OCTET4	Indicates the alarm cause.

Impact on the System

Traffic cannot be received correctly.

Possible Causes

A MAC address in a BD is learned by different interfaces, causing MAC address flapping.

Procedure

Perform the following operations to remove loops:

Check information about the two interfaces that learn the same MAC address in the alarm. Shut down one of the two interfaces according to the networking and go to step 2.
Check whether the alarm is generated again.
- If so, another loop exists. Shut down one of the two interfaces to eliminate the loop.
- If not, go to step 3.
End.