网络工程 - SFP+ 抱怨违反阈值并下降 - 吾爱随笔录

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最近买了 3 台 Cisco 交换机：3560x 和两台 2960X。3560作为核心交换机，另外两台交换机使用SFP+连接（一台SFP-H10GB-CU1M，另一台SFP-10G-SR）

我对 SFP-10G-SR 有问题。

我使用 50m OM3 电缆连接了 SFP-10G-SR。它最初有效，但是日志始终具有：

026123: Jun 12 20:42:02.573: %SFF8472-5-THRESHOLD_VIOLATION: Te1/2: Rx power high warning; Operating value:  -0.9 dBm, Threshold value:  -1.0 dBm.
026124: Jun 12 20:48:35.730: %SFF8472-5-THRESHOLD_VIOLATION: Te1/2: Rx power high warning; Operating value:  -0.9 dBm, Threshold value:  -1.0 dBm.

在一次事件中，我注意到 SFP 端口 SFP-10G-SR 出现故障。我在玩那个，所以我不在乎，我只是重新启动了交换机，一切都回来了。

今天，SFP 端口将不再出现。我在生产中，所以我尝试更换 Fiber 并尝试更换 SFP+ 模块。没有运气

显示库存

NAME: "TenGigabitEthernet1/2", DESCR: "SFP-10GBase-SR"
PID: SFP-10G-SR          , VID: V03  , SN: FNS16481363

显示 int te1/2

    TenGigabitEthernet1/2 is down, line protocol is down (notconnect) 
  Hardware is Ten Gigabit Ethernet, address is 24e9.b3e3.a29e (bia 24e9.b3e3.a29e)
  Description: NGPSW03 Trunk
  MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
  input flow-control is off, output flow-control is unsupported 
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 6d09h, output 6d09h, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     1119868 packets input, 124583435 bytes, 0 no buffer
     Received 302202 broadcasts (301488 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 301488 multicast, 0 pause input
     0 input packets with dribble condition detected
     48617012 packets output, 4642677414 bytes, 0 underruns
     0 output errors, 0 collisions, 3 interface resets
     1 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

型号/版本：

Switch Ports Model              SW Version            SW Image                 
------ ----- -----              ----------            ----------               
*    1 30    WS-C3560X-24       15.0(2)SE6            C3560E-IPBASEK9-M

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更新
我尝试将 Cable+SFP 从 Te1/2 重新定位到 Te1/1，现在警告是相反的。

SFF8472-5-THRESHOLD_VIOLATION: Te1/1: Rx power low warning; Operating value: -13.8 dBm, Threshold value: -13.0 dBm.