S7506 XGbus使用dis version命令后重启问题

设备类型S7506 XGbus，版本Version 3.10, Release 3135。在收集版本信息时，使用串口线连接设备，命令dis version，之后设备自行重启，请问是什么原因？

<hngs_ZhuLou_S7506>dis vers
<hngs_ZhuLou_S7506>dis version
H3C Comware Platform Software
Comware software, Version 3.10, Release 3135
Copyright (c) 2004-2007 Hangzhou H3C Technologies Co., Ltd. All rights reserved.
H3C S7506 uptime is 180 weeks, 6 days, 23 hours, 0 minute

SRPG 0:  uptime is 180 weeks,6 days,23 hours,0 minutes
H3C S7500 with 1 MPC8245 Processor
256M    bytes SDRAM
32768K  bytes Flash Memory
512K    bytes NVRAM Memory
PCB Version      :   VER.D
BootROM Version  :   531
CPLD Version     :   005
Second CPLD Ver  :   005
Software Version :   S7506-3135
Patch Version    :   None

LPU 1:  uptime is 180 weeks,6 days,8 hours,12 minutes
H3C S7500 LPU with 1 MPC8241 Processor
128M    bytes SDRAM
0K      bytes Flash Memory
0K      bytes NVRAM Memory               
PCB Version      :   VER.D
BootROM Version  :   531
CPLD Version     :   005
Software Version :   S7506-3135
Patch Version    :   None

Starting......
RAMLine.....OK
System is booting....................

            ******************************************
            *                                        *
            *    H3C S7506 BOOTROM, Version 531      *
            *                                        *
            ******************************************

Copyright(c) 2004-2007 Hangzhou H3C Tech. Co., Ltd.
Creation date   : Oct 11 2007, 10:08:57
CPU type        : MPC8245
CPU Clock Speed : 300Mhz
BUS Clock Speed : 33Mhz
BOOT_FLASH type : AMD29LV040B
Flash  Size     : 32MB
Memory Size     : 256MB

S7506 main board self testing................................
SDRAM Data lines Selftest.................................OK!
SDRAM Address lines Selftest..............................OK!
SDRAM fast selftest.......................................OK!
Please check LEDs.....................LEDs selftest finished!
CPLD selftest.............................................OK!
FPGA selftest.............................................OK!
The switch Mac address is .....................000F.E26B.4998

Press Ctrl+B to enter Boot Menu... 0
Auto-booting...
Auto booting file is s7500-cmw310-r3135.app
There are 7 files in this packet
SRPG app file <<srpu.app>> is...OK
Decompressing Image.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................OK!

Redecompressing image...OK!
User interface aux0 is available.

Press ENTER to get started.

<hngs_ZhuLou_S7506>dis version
H3C Comware Platform Software
Comware software, Version 3.10, Release 3135
Copyright (c) 2004-2007 Hangzhou H3C Technologies Co., Ltd. All rights reserved.
H3C S7506 uptime is 0 week, 0 day, 0 hour, 1 minute

SRPG 0:  uptime is 0 weeks,0 days,0 hours,1 minutes
H3C S7500 with 1 MPC8245 Processor
256M    bytes SDRAM
32768K  bytes Flash Memory
512K    bytes NVRAM Memory
PCB Version      :   VER.D
BootROM Version  :   531
CPLD Version     :   005
Second CPLD Ver  :   005
Software Version :   S7506-3135
Patch Version    :   None

LPU 1:  uptime is 0 weeks,0 days,0 hours,0 minutes
H3C S7500 LPU with 1 MPC8241 Processor
64M     bytes SDRAM
0K      bytes Flash Memory
0K      bytes NVRAM Memory