53242M端口QoSRate Ctrl802.1xIGMP&端口镜像VLANARLSTPMIB5324MPort Default TagARL TableVLAN Table27个端口Broadcom 芯片硬件操作系统适配(SAL)层芯片系统(SOC)层分发(Dispatch)层应用接口(API)层寄存器访问与上层接口的确定NNINNINNIUNIUNINNIUNIUNIPortslice portslice portfieldfieldTCAM EntryPolicyStatisticMetering1024QoS&RateCtrlInit VIDGenerationARLVLAN tableCFPSwitch Fabric 与CFP有关的mapping?IngressEgress