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show interfaces bri优先EXEC命令显示BRI D通道或一个或几个B通道的信息。
show interfaces bri number[[:bchannel] | [first] [last]] [accounting]
show interfaces bri slot/port (Cisco 7200 series)
| 语法 |
说明 |
| number |
接口号。如果路由器用8端口BRI网络接口模块（NIM），则取值为0~7，如果路由器有两个8端口BRI NIM，则取值为0~15。接口号数值随所用的硬件平台而改变。例如，Cisco 3600系列路由器最多可有48个接口指定该BRI接口显示D通道的数字 |
| slot/port |
在Cisco 7200系列中，接口的槽位置和端口号 |
| :bchannel |
（可选）冒号（:）加特定B通道号 |
| first |
（可选）指定第一个B通道，取值为1或2 |
| last |
（可选）指定最后一个B通道，取值为2，表示B通道1和2 |
| accounting |
（可选）显示通过接口发送的每种协议分组数 |
命令方式：优先EXEC
使用指南：这个命令最初在Cisco IOS Release 10.3中出现。
这个命令在Cisco IOS Release 11.2 P中修改成包括Cisco 7200系列路由器上PA-8B-ST 和PA-4B-U端口适配器的槽/端口语法。
用:bchannel-number变元或first和last变元显示指定B通道的信息。
用show interfaces bri number形式的命令（没有可选:bchannel或first和last变元）取得D通道信息。
下表样本show interfaces bri组合
| 语法 |
说明 |
| show interfaces |
路由器中的所有接口 |
| show interfaces bri 2 |
BRI接口2的通道D |
| show interfaces bri 2:1 |
BRI接口2的通道B1 |
| show interfaces bri 2:2 |
BRI接口2的通道B2 |
| show interfaces bri 4 1 |
BRI接口4的通道B1 |
| show interfaces bri 4 2 |
BRI接口4的通道B2 |
| show interfaces bri 4 1 2 |
BRI接口4的通道B1和B2 |
| show interfaces bri |
错误消息："% Incomplete command." |
下面是show interfaces bri命令的样本输出：
Router# show interfaces bri 0:1
BRI0:1 is down, line protocol is down
Hardware is BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive not set
LCP Closed
Closed: IPCP
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
下面是Cisco 7200系列路由器上show interfaces bri命令的样本输出：
Router# show interfaces bri 2/0
BRI2/0 is up, line protocol is up (spoofing)
Hardware is BRI
Internet address is 11.1.1.3/27
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set
Last input 00:00:01, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/64/0 (size/threshold/drops)
Conversations 0/1 (active/max active)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
609 packets input, 2526 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
615 packets output, 2596 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
表8.6 列出了其中显示的字段。
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