Concept Guide

Example of the clear counters Command
When you enter this command, conrm that you want Dell EMC Networking OS to clear the interface counters for that interface.
DellEMC#clear counters te 1/1
Clear counters on TenGigabitEthernet 1/1 [confirm]
DellEMC#
Discard Counters
The Dell Networking OS discard counters counts the packets or frames which are legitimate but dropped due to lack of operation of the
higher layer protocol. The discard counters do not count the errors such as runts, giants, throttles, CRC, overrun, underrun, symbol error,
etc.
For example, when an OSPF packet is received on a switch which has OSPF disabled, the packet gets dropped due to lter processor (FP)
entry and the discard counter gets incremented. However, the packets that are forwarded to the CPU are dropped at the interface level
and a copy of the packet is forwarded to the CPU. Therefore, the discard counter is increased when a packet matches an FP entry,
irrespective of the action dened in the FP entry to avoid pipeline processing in the hardware.
Display discard counters
• View the discard counters.
EXEC Privilege Mode
show interfaces
Example of the show interfaces Command
DellEMC# show interfaces tengigabitethernet 1/1
TenGigabitEthernet 1/1 is up, line protocol is down
Hardware is DellEMCEth, address is 00:01:e8:41:77:95
Current address is 00:01:e8:41:77:95
Pluggable media present, SFP type is 1000BASE-SX
Wavelength is 850nm
Interface index is 100974648
Port will not be disabled on partial SFM failure
Internet address is not set
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit
Flowcontrol rx on tx on
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 1w0d5h
Queueing strategy: fifo
Input Statistics:
0 packets, 0 bytes
0 Vlans
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 0 discarded
Output Statistics:
0 packets, 0 bytes, 0 underruns
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 0 Unicasts
0 Vlans, 0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 00.00 Mbits/sec, 0 packets/sec,0.00% of line-rate
Time since last interface status change: 1w0d5h
DellEMC#
Points to remember:
Interfaces
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