306 | Z-Series Debugging and Diagnosticsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Figure 12-14. Displaying Drop Counter StatisticsFTOS#show hardware stack-unit 0 dropsUNIT No: 0Total Ingress Drops :0Total IngMac Drops :0Total Mmu Drops :0Total EgMac Drops :0Total Egress Drops :0UNIT No: 1Total Ingress Drops :0Total IngMac Drops :0Total Mmu Drops :0Total EgMac Drops :0Total Egress Drops :0FTOS#show hardware stack-unit 0 drops unit 0Port# :Ingress Drops :IngMac Drops :Total Mmu Drops :EgMac Drops :EgressDrops1 0 0 0 0 02 0 0 0 0 03 0 0 0 0 04 0 0 0 0 05 0 0 0 0 06 0 0 0 0 07 0 0 0 0 08 0 0 0 0 0Display drop counters with the show hardware stack-unit drops unit port commandFigure 12-15. Displaying Drop CountersZ9000-B4#show hardware stack-unit 0 drops unit 2UserPort PortNumber Ingress Drops IngMac Drops Total Mmu Drops EgMac Drops Egress Drops64 1 0 0 0 0 065 2 0 0 0 0 066 3 0 0 0 0 067 4 0 0 0 0 068 5 0 0 0 0 069 6 0 0 0 0 070 7 0 0 0 0 0...Internal 39 0 0 0 0 0Internal 40 0 0 0 0 0Internal 41 0 0 0 0 0value = 0 = 0x0Dataplane StatisticsThe show hardware stack-unit cpu data-plane statistics command provides insight into the packettypes coming to the CPU. As shown in the following example, the command output has been augmented,providing detailed RX/TX packet statistics on a per-queue basis. The objective is to see whetherCPU-bound traffic is internal (so-called party bus or IPC traffic) or network control traffic, which the CPUmust process.
