PowerEdge：Mellanox ConnectX-4 LX 報告長度錯誤
Summary: 當網路 MTU 未在同一端對端設定時，Mellanox ConnectX-4 LX 會回報長度錯誤。
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Symptoms
在介面上接收巨型訊框時，其中巨型訊框並未啟用，且介面卡統計資料會記錄接收長度錯誤。
Cause
使用 iSCSI，來源 MTU 大小為 1500 （預設），但交換器設定為巨型訊框，並在介面卡的靜態中收到接收長度錯誤。
Resolution
在整個網路數據路徑中將 MTU 設置為相等是常規網路設計最佳實踐，以避免接收大於配置為處理的埠的數據包。
請勿更換任何硬體。
此為設計運作方式。
Affected Products
OEMR R440, OEMR R540, OEMR R640, OEMR R6415, OEMR R740, OEMR R740xd, OEMR R740xd2, OEMR R7415, OEMR R7425, OEMR R840, OEMR R940, OEMR R940xa, OEMR T640, Poweredge C4140, PowerEdge C6420, PowerEdge FC640, PowerEdge R440, PowerEdge R540, PowerEdge R640
, PowerEdge R6415, PowerEdge R740, PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R840, PowerEdge R940, PowerEdge R940xa, PowerEdge T640
...
Article Properties
Article Number: 000147729
Article Type: Solution
Last Modified: 13 Oct 2025
Version: 4
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