通常情况下我们在做交换机光模块接入后想看一下功率等一系列参数是否满足要求，为了将来不出error包等情况。h3c会有一个参考值可以给我们工程师参考。当然该命令是在隐藏模式下进行的啦。具体请看：
<H3C-S5600>sys
System View: return to User View with Ctrl+Z.
[H3C-S5600]_hidecmd
Now you enter a hidden command view for developer's testing, some commands may
affect operation by wrong use, please carefully use it with our engineer's
direction.
[H3C-S5600-hidecmd]_dis tran diag int
GigabitEthernet1/0/25 transceiver diagnostic information:
Error: The transceiver is absent.
GigabitEthernet1/0/26 transceiver diagnostic information:
Error: The transceiver does not support this function.
由于我是旧的5600的设备，SFP模块不支持该功能，后继都增加了该function.请注意。
