在华为S3952上开启debugging命令后，使用下面命令想查看debugging信息，结果发现什么都没有，一直以为是通过这个命令，开启debugging信息查看，甚至怀疑交换机的debugging功能是否有问题了
<S3952>terminal monitor
% Current terminal monitor is on
通过百度搜索，才发现原来还有下面这个这命令，一敲，果然一大堆debugging系想你就吐出来了
<S3952>terminal debugging
% Current terminal debugging is on
<S3952>undo terminal debugging
% Current terminal debugging is off
使用的S3952版本如下
<S3952>disp ver
Huawei Versatile Routing Platform Software.
VRP software, Version 3.10, Feature 1528L03
Copyright(c) 1998-2007 Huawei Technologies Co., Ltd. All rights reserved.
Quidway S3952P-EI uptime is 16 weeks, 4 days, 3 hours, 52 minutes
Quidway S3952P-EI with 1 Processor
64M bytes DRAM
16384K bytes Flash Memory
Config Register points to FLASH
Hardware Version is REV.C
CPLD Version is CPLD 001
Bootrom Version is 505
[Subslot 0] 48 FE Hardware Version is REV.C
[Subslot 1] 4 GE Hardware Version is REV.C
