想看一下8楼交换机所有端口的状态，因为有两台嘛，不确定是哪台，一台插得网口多，一台插得少。交换机是H3C的，以前在思科的交换机上有个很好用的命令：show ip in br ，H3C应该是 dis ip in br，发现不行，就只出现了VLAN信息，没有端口信息。
原来H3C下应该是 dis in br，但显示出来的也不对啊！后来发现是后面的“br”不对，这个应该补全为：brief，不然它是：Bridge-Aggregation，所以不对嘛！执行效果如下：
dis interface brief
The brief information of interface(s) under route mode:
Link: ADM – administratively down; Stby – standby
Protocol: (s) – spoofing
Interface Link Protocol Main IP Description
M-GE0/0/0 DOWN DOWN –
NULL0 UP UP(s) –
Vlan1 DOWN DOWN –
Vlan2000 UP UP 172.16.1.45
The brief information of interface(s) under bridge mode:
Link: ADM – administratively down; Stby – standby
Speed or Duplex: (a)/A – auto; H – half; F – full
Type: A – access; T – trunk; H – hybrid
Interface Link Speed Duplex Type PVID Description
BAGG6 DOWN auto A T 1
GE1/0/1 DOWN auto A A 801
GE1/0/2 UP 1G(a) F(a) A 801
GE1/0/3 UP 1G(a) F(a) A 801
GE1/0/4 DOWN auto A A 801
GE1/0/5 UP 100M(a) F(a) A 801
GE1/0/6 UP 10M(a) F(a) A 801
GE1/0/7 DOWN auto A A 801
GE1/0/8 DOWN auto A A 801
GE1/0/9 DOWN auto A A 801
GE1/0/10 DOWN auto A A 801
GE1/0/11 DOWN auto A A 801
GE1/0/12 DOWN auto A A 801
GE1/0/13 DOWN auto A A 801
GE1/0/14 DOWN auto A A 801
GE1/0/15 UP 100M(a) F(a) A 801
GE1/0/16 UP 1G(a) F(a) A 801
GE1/0/17 UP 1G(a) F(a) A 801
GE1/0/18 DOWN auto A A 801
GE1/0/19 DOWN auto A A 801
GE1/0/20 DOWN auto A A 801
后来我发现还有个命令也可以查看所有的端口状态：dis port-security。显示如下：
dis port-security
Equipment port-security is disabled
Trap is disabled
AutoLearn aging time is 0 minutes
Disableport Timeout: 20s
OUI value:
GigabitEthernet1/0/1 is link-down
GigabitEthernet1/0/2 is link-up
GigabitEthernet1/0/3 is link-up
GigabitEthernet1/0/4 is link-down
GigabitEthernet1/0/5 is link-up
GigabitEthernet1/0/6 is link-up
GigabitEthernet1/0/7 is link-down
GigabitEthernet1/0/8 is link-down
GigabitEthernet1/0/9 is link-down
GigabitEthernet1/0/10 is link-down
GigabitEthernet1/0/11 is link-down
GigabitEthernet1/0/12 is link-down
GigabitEthernet1/0/13 is link-down
GigabitEthernet1/0/14 is link-down
GigabitEthernet1/0/15 is link-up
GigabitEthernet1/0/16 is link-up
GigabitEthernet1/0/17 is link-up
GigabitEthernet1/0/18 is link-down
GigabitEthernet1/0/19 is link-down
GigabitEthernet1/0/20 is link-down
以下为网络转载：
大家都知道交换机的端口都是比较多，当你想查看某些端口状态(是处于UP还是DOWN状态)时，通常我们会使用以下命令：
思科：show interface X
H3C：display interface X
注：X表代端口号，如e1/0/1之类的。
但如果当交换机的端口非常多时，而且你想知道所有端口的状态时，你再一条一条命令输进去，那是相当累人的，同时输出的结果也过于详细，看得人眼花缭乱。
如何有效的查看所有端口的状态呢？我们可以使用以下命令：
思科：show ip interface brief
H3C：display interface brief
华为的交换机好像没有什么命令能实现这种功能。