The peer device generates a MAC address flapping alarm.

Trouble Ticket Number

DTS2024092515642

Symptom

The peer device generates a MAC address flapping alarm.

Condition

The local device has multiple Layer 3 interfaces, and the peer device has multiple Layer 2 interfaces. LLDP is enabled on both devices.

Impact

Services are interrupted.

Severity

Minor

Root Cause

The source MAC address of an LLDP packet sent from a Layer 3 interface is the system MAC address. As a result, the Layer 2 interfaces on the peer device learn the same MAC address.

Solution

The LLDP packets sent from a Layer 3 interface use the interface's MAC address as the source MAC address.

Solution Impact

None

Problem Resolved in

V300R023C00SPC100,V300R023C10SPC100

Involved Models

AR600, AR6100, AR6200, AR6300, RU-5G

Precaution

None