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Solarwinds 报告多台交换机的传输丢弃量异常高

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Solarwinds 报告多台交换机的传输丢弃量异常高

我有几个 3750X Cisco 交换机，根据我们的 Solarwinds NPM，它们每天产生数十亿次传输丢弃。我不确定它为什么会报告这些丢弃。3750X 上的许多端口都连接了 2960，并被硬编码为中继端口。

Solarwinds NPM 版本 10.3

Cisco IOS 版本 12.2(58)SE2

总产量下降：29139431：

GigabitEthernet1/0/43 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is XXXX (bia XXXX)
  Description: XXXX
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:47, output 00:00:50, output hang never
  Last clearing of "show interface" counters 1w4d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 29139431
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 35000 bits/sec, 56 packets/sec
     51376 packets input, 9967594 bytes, 0 no buffer
     Received 51376 broadcasts (51376 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 51376 multicast, 0 pause input
     0 input packets with dribble condition detected
     115672302 packets output, 8673778028 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

sh 控制器千兆以太网 1/0/43 利用率：

接收带宽利用率百分比：0 发送带宽利用率百分比：0

答案1

已向 Cisco TAC 提交案例。该问题是一个软件错误 (CSCso81660)，指出 Cat3750 堆栈在 show interface 上显示的输出丢包值不正确。这纯粹是表面现象，而“show platform port-asic stats drops”命令显示正确的值。即零丢包。

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