It is the table for the dynamic binding between the MAC address and the service port and is used for querying the entry of the dynamic binding between the MAC address and the service port. After anti-MAC-spoofing is enabled, the MAC address of the user is bound to the corresponding service port. If the MAC address of the user packet is not the MAC address bound to the service port, the packet is discarded. The indexes of this table are hwIpDslamMacAddrDynamicBindingFlowId and hwIpDslamMacAddrDynamicBindingMacIndex. The service port corresponding to this index must already be created in hwExtSrvFlowEntry. hwIpDslamMacAddrDynamicBindingMacIndex is the index of the MAC address bound to the service port.