Cisco

為什麼 Cisco 埠未連接但另一端出現

  • September 21, 2019

在我的 Cisco Catalyst 3850 上,有一個 SFP 模組連接到另一台設備,另一台設備(供應商設備)上的埠出現,但我的介面仍然關閉。DOM 資訊顯示我接收和傳輸 pegel,如果我在該介面上執行關閉命令,另一端就會關閉。

這是該埠的配置:

interface GigabitEthernet1/0/8
description port1
no switchport
ip address 10.1.1.80 255.255.255.254
end

但是埠仍然關閉:

sh int gi1/0/8 status

Port      Name               Status       Vlan       Duplex  Speed Type 
Gi1/0/8   port1   notconnect   routed       full   1000 1000BaseLX SFP

在收發器詳細資訊頁面上,一切都很好:

#sh int gi1/0/8 transceiver detail   
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
mA: milliamperes, dBm: decibels (milliwatts), NA or N/A: not applicable.
++ : high alarm, +  : high warning, -  : low warning, -- : low alarm.
A2D readouts (if they differ), are reported in parentheses.
The threshold values are calibrated.

                             High Alarm  High Warn  Low Warn   Low Alarm
         Temperature         Threshold   Threshold  Threshold  Threshold
Port       (Celsius)          (Celsius)   (Celsius)  (Celsius)  (Celsius)
--------- ------------------  ----------  ---------  ---------  ---------
Gi1/0/8     39.7                95.0        90.0       -40.0      -45.0

                             High Alarm  High Warn  Low Warn   Low Alarm
          Voltage            Threshold   Threshold  Threshold  Threshold
Port       (Volts)            (Volts)     (Volts)    (Volts)    (Volts)
---------  ---------------    ----------  ---------  ---------  ---------
Gi1/0/8    3.32                  3.60        3.50        3.10       3.00

          Optical            High Alarm  High Warn  Low Warn   Low Alarm
          Transmit Power     Threshold   Threshold  Threshold  Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
---------  -----------------  ----------  ---------  ---------  ---------
Gi1/0/8     -5.2                -1.0        -1.9       -10.0      -11.0

          Optical            High Alarm  High Warn  Low Warn   Low Alarm
          Receive Power      Threshold   Threshold  Threshold  Threshold
Port       (dBm)              (dBm)       (dBm)      (dBm)      (dBm)
-------    -----------------  ----------  ---------  ---------  ---------
Gi1/0/8     -6.8                -1.9        -2.9       -24.9      -26.0

我換了SFP模組還是一樣,換了埠也是一樣的結果。如何解決此問題。

對我來說有點奇怪,另一台設備上的埠出現了,但我的設備仍然關閉。

供應商喜歡禁用一切留給機會的東西。用於speed nonegotiate啟動連結。

引用自:https://serverfault.com/questions/984353