Reference Guide

Debugging and Diagnostics | 265
Figure 22-14. Displaying Buffer Statistics, Displaying Drop Counters
Dataplane Statistics
The show hardware stack-unit cpu data-plane statistics command provides insight into the packet types coming
to the CPU. As shown in Figure 22-15, the command output has been augmented, providing detailed RX/
TX packet statistics on a per-queue basis. The objective is to see whether CPU-bound traffic is internal
(so-called party bus or IPC traffic) or network control traffic, which the CPU must process.
FTOS#show hardware stack-unit 0 drops unit 0 port 1
--- Ingress Drops ---
Ingress Drops : 30
IBP CBP Full Drops : 0
PortSTPnotFwd Drops : 0
IPv4 L3 Discards : 0
Policy Discards : 0
Packets dropped by FP : 14
(L2+L3) Drops : 0
Port bitmap zero Drops : 16
Rx VLAN Drops : 0
--- Ingress MAC counters---
Ingress FCSDrops : 0
Ingress MTUExceeds : 0
--- MMU Drops ---
HOL DROPS : 0
TxPurge CellErr : 0
Aged Drops : 0
--- Egress MAC counters---
Egress FCS Drops : 0
--- Egress FORWARD PROCESSOR Drops ---
IPv4 L3UC Aged & Drops : 0
TTL Threshold Drops : 0
INVALID VLAN CNTR Drops : 0
L2MC Drops : 0
PKT Drops of ANY Conditions : 0
Hg MacUnderflow : 0
TX Err PKT Counter : 0