Q: What Is the principle for aging of MAC of NE40E?
A: Unicast address entries learned need to time out regularly. Those of NE40E will be aging automatically by hardware. If packets are received, MAC address will be learned, and the aging timer is enabled. If the packet with the same MAC address is received, the aging timer should be reset . The functionality of aging could be disabled, and the aging-time of entries is also configurable. Once the address entries are full, they will not be overwritten. Static entries (configured by CPU, without automatic aging)are capable, and static MAC could be added or deleted.