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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Dataplane Statistics

The show hardware stack-unit cpu data-plane statistics command provides insight into the packet types coming to the CPU. The show hardware stack-unit cpu party-bus statistics command displays input and output statistics on the party bus, which carries inter-process communication traffic between CPUs.

The command output in the following example 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.

Example of Viewing Dataplane Statistics

DellEMC#show hardware stack-unit 1 cpu data-plane statistics

bc pci driver statistics for device:
 rxHandle        :773
 noMhdr          :0
 noMbuf          :0
 noClus          :0
 recvd           :773
 dropped         :0
 recvToNet       :773
 rxError         :0
 rxFwdError      :0
 rxDatapathErr   :0
 rxPkt(COS0 )    :0
 rxPkt(COS1 )    :0
 rxPkt(COS2 )    :0
 rxPkt(COS3 )    :0
 rxPkt(COS4 )    :0
 rxPkt(COS5 )    :0
 rxPkt(COS6 )    :0
 rxPkt(COS7 )    :0
 rxPkt(COS8 )    :773
 rxPkt(COS9 )    :0
 rxPkt(COS10)   :0
 rxPkt(COS11)   :0
 rxPkt(UNIT0)    :773
 transmitted     :12698
 txRequested     :12698
 noTxDesc        :0
 txError         :0
 txReqTooLarge   :0
 txInternalError :0
 txDatapathErr   :0
 txPkt(COS0 )    :0
 txPkt(COS1 )    :0
 txPkt(COS2 )    :0
 txPkt(COS3 )    :0
 txPkt(COS4 )    :0
 txPkt(COS5 )    :0
 txPkt(COS6 )    :0
 txPkt(COS7 )    :0
 txPkt(COS8 )    :0
 txPkt(COS9 )    :0
 txPkt(COS10)   :0
 txPkt(COS11)   :0
 txPkt(UNIT0)    :0

Example of Viewing Party Bus Statistics

DellEMC#sh hardware stack-unit 1 cpu party-bus statistics
Input Statistics:
  27550 packets, 2559298 bytes
  0 dropped, 0 errors
Output Statistics:
  1649566 packets, 1935316203 bytes
  0 errors

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