Raw TxWait
Use the NX-OS commands show interface, show interface counters, or show interface counters detailed to display the raw TxWait metric. Refer to Example 3-1. The “TxWait 2.5us due to lack of transmit credits” counter contains the total amount of TxWait on the interface since the counters were last cleared. As mentioned, this value is in 2.5 μs increments so a value of 4 equals 10 μs. In Example 3-1, interface fc2/15 was unable to transmit frames for 15.63 seconds ((6252650 x 2.5) / 1,000,000) since the counters were last cleared. 使用 NX-OS 命令 show interface、show interface counters 或 show interface counters detailed 显示原始 TxWait 指标。请参阅例 3-1。TxWait 2.5us due to lack of transmit credits（由于缺少传输点数，TxWait 为 2.5us）"计数器包含自上次清除计数器以来接口上的 TxWait 总量。如前所述，该值以 2.5 μs 为增量，因此 4 等于 10 μs。在例 3-1 中，接口 fc2/15 在上次清除计数器后的 15.63 秒（(6252650 x 2.5) / 1,000,000）内无法传输帧。
A common practice is to clear the counters (using the NX-OS command clear counters) followed by displaying the TxWait value multiple times. But this approach is not intuitive because a user must manually take the time difference, then multiply the raw TxWait value by 2.5 and divide by 1,000,000. 通常的做法是清除计数器（使用 NX-OS 命令清除计数器），然后多次显示 TxWait 值。但这种