--------show---
- #run show version 查看设备版本
- show chassis environment 查看机箱环境
- show chassis alarms 查看机箱告警
- show log messages 查看日志信息
- show chassis fpc 查看机箱fpc信息
- show chassis routing-engine 查看机箱路由引擎
--------request------
- request system reboot 系统重启
- request system halt 系统关机
- request chassis fpc slot slot-number offline 板卡下线
- request chassis fpc slot slot-number online 板卡上线