思科Cisco                                  华为3COM                             功能   
enable                                         system-view                            进入特权模式   
configure  terminal                     \                                                进入配置状态   
show                                           display                                      显示   
show running-config               display current                    显示目前的运行配置   
show version                            disp version                              显示版本   
show start                                 disp saved                          显示已保存的配置   
show tech-support                  disp base-information           显示全面的信息   
no                                               undo                                      取消（删除）   
hostname                                  sysname                                 更改机器名   
\                                                    lang chinese                         进入中文状态   
user                                              local-user                             新建修改用户   
end                                               return                                  退回到系统视图   
exit                                               quit                                    返回上级视图   
exit                                               logout telnet                                    退出   
router rip                                     rip rip                                           动态路由   
router ospf                                  spf                                          ospf      路由 
router bgp                                  bgp                                                                         bgp路由   
write                                              save                                          保存配置   
erase                                             delete                                       删除配置   
0                                                    simple                                       明文   
7                                                     cipher                                    密文 
access-list                                 acl                                        控制访问列表   
host ip                                       host                                          host和ip名字对应   
logging                                  info-center                               日志信息   
encap                                     link-protocol                           封闭链路层协议   
no debug all                            ctrl+d 取消所有                    debug命令       
vlan database                           vlan                                     进入ｖｌａｎ的配置   
vtp trunk                                 trunk                                      设置成为骨干端口   
mode                                        \                                               模式   
trunk                                        相同                                       主干线
switchport                                   port                                     接口控制   
access                                        相同                                     访问   
ip dhcp                                        dhcp 设置dhcp服务器功能