Operation Manual – MAC Address Table ManagementH3C S3100 Series Ethernet SwitchesChapter 1 MAC Address TableManagement1-5themselves. Using static MAC address entries can reduce broadcast packetsremarkably and are suitable for networks where network devices seldom change.z Dynamic MAC address entry: This type of MAC address entries age out after theconfigured aging time. They are generated by the MAC address learningmechanism or configured manually.z Blackhole MAC address entry: This type of MAC address entries are configuredmanually. A switch discards the packets destined for or originated from the MACaddresses contained in blackhole MAC address entries.Table 1-1 lists the different types of MAC address entries and their characteristics.Table 1-1 Characteristics of different types of MAC address entriesMAC addressentryConfigurationmethod Aging timeReserved or notat reboot (if theconfiguration issaved)Static MACaddress entryManuallyconfigured Unavailable YesDynamic MACaddress entryManuallyconfigured orgenerated by MACaddress learningmechanismAvailable NoBlackhole MACaddress entryManuallyconfigured Unavailable Yes1.2 Configuring MAC Address Table Management1.2.1 MAC Address Table Management Configuration Task ListComplete the following tasks to configure MAC address table management:Task RemarksConfiguring a MAC Address Entry RequiredSetting the MAC Address Aging Timer OptionalSetting the Maximum Number of MAC Addresses aPort Can Learn OptionalDisabling MAC Address learning for a VLAN OptionalAssigning MAC Addresses for Ethernet Ports Optional
