Checking Whether the Interface Has Lost or Error Packets

Procedure

  1. Run the display interface command to check whether the number of discarded or error packets on the interface increases.

    [HUAWEI] display interface gigabitethernet 2/0/24
    GigabitEthernet2/0/24 current state : UP
    Line protocol current state : UP
    Description:117.40.161.123
    Switch Port, PVID :  625, TPID : 8100(Hex), The Maximum Frame Length is 9216
    IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is fce3-3cb0-adf0
    Last physical up time   : 2015-08-09 21:41:37 UTC+08:00
    Last physical down time : 2015-08-09 21:41:35 UTC+08:00
    Current system time: 2015-08-11 09:57:58+08:00
    Port Mode: COMMON COPPER
    Speed : 100,    Loopback: NONE
    Duplex: FULL,   Negotiation: ENABLE
    Mdi   : AUTO,   Flow-control: DISABLE
    Last 300 seconds input rate 588352 bits/sec, 72 packets/sec
    Last 300 seconds output rate 61816 bits/sec, 54 packets/sec
    Input peak rate 99999992 bits/sec, Record time: 2015-08-05 10:24:34
    Output peak rate 70510728 bits/sec, Record time: 2015-08-07 07:24:41
    
    Input:  3870781459 packets, 3935937483889 bytes                                 
      Unicast:                 3870781452,  Multicast:                           0  
      Broadcast:                        7,  Jumbo:                               0  
      Discard:                          0,  Pause:                               0  
                                                                                    
      Total Error:                      0                                           
      CRC:                              0,  Giants:                              0  
      Jabbers:                          0,  Fragments:                           0  
      Runts:                            0,  DropEvents:                          0  
      Alignments:                       0,  Symbols:                             0  
      Ignoreds:                         0,  Frames:                              0  
                                                                                    
    Output:  38638073 packets, 4927079332 bytes                                     
      Unicast:                   38638073,  Multicast:                           0  
      Broadcast:                        0,  Jumbo:                               0  
      Discard:                       2843,  Pause:                               0  
                                                                                    
      Total Error:                      0                                           
      Collisions:                       0,  ExcessiveCollisions:                 0  
      Late Collisions:                  0,  Deferreds:                           0  
      Buffers Purged:                   0                                           
    

    The packets are discarded due to congestion. Configure rate limiting according to QoS Configuration in the product manual.

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