1.Controller Configuration Examples控制器配置举例
　　
　　The following example shows a typical controller configuration for
　　the multichannel E1/PRI port adapter on a Cisco 7200 series or
　　Cisco uBR7200 series router:
　　
　　router> enable
　　router# configure terminal
　　router(config)# controller E1 1/0
　　router(config-controller)# framing crc4
　　router(config-controller)# linecode hdb3
　　router(config-controller)# clocksource internal
　　router(config-controller)# channel-group 0 timeslots 1-31
　　router(config-controller)# description ppp channel 5
　　router(config-controller)# shutdown
　　router(config-controller)# ^Z
　　
　　2.Interface Configuration Examples接口配置举例
　　The following example shows a typical interface configuration for
　　 the multichannel E1/PRI port adapter on a Cisco 7200 series or
　　Cisco uBR7200 series router:
　　
　　router> enable
　　router# configure terminal
　　router(config)# interface serial
　　router(config)# interface serial 4/1:0
　　router(config-if)# encapsulation ppp
　　router(config-if)# description ppp channel 5
　　router(config-if)# no shutdown
　　router(config-if)# ^Z
　　
　　3. Configuring Multichannel E1 Interfaces 配制多通道E1接口
　　The channel groups must be mapped before the multichannel E1/PRI
　　controller can be configured. The following are controller commands
　　used to map the channel group (the default variable is listed first):
　　
　　controller E1 port-adapter-slot number/port-number (for Cisco 7200
　　series router)
　　clock source [line internal]
　　linecode [ami hdb3]
　　framing [crc4 no-crc4]
　　loopback [diagnostic local {payload line}]
　　shutdown
　　channel-group number timeslots list
　　Number is the channel group 0 to 30.
　　list is a number between 1 and 31. You can enter timeslots individually
　　 and separate them by commas, or enter them as a range separated by
　　 a hyphen (for example, 1-3, 8, 9-18). Timeslot 0 is an illegal
　　configuration.
　　
　　4.常用调试命令
　　show version or show hardware
　　Displays system hardware configuration, the number of each interface
　　type installed, Cisco IOS software version, names and sources of
　　configuration files, and boot images
　　show controllers
　　Displays all the current interface processors and their interfaces
　　show diag slot
　　Displays types of port adapters installed in your system and
　　information about a specific port adapter slot, interface processor
　　slot, or chassis slot
　　show interfaces type 0 or 1/
　　interface-port-number
　　Displays status information about a specific type of interface (for
　　 example, serial) on a Catalyst RSM/VIP2
　　show interfaces type mod_num/bay/port
　　Displays status information about a specific type of interface (for
　　example, serial) on a Catalyst 6000 family FlexWAN module
　　show interfaces type 3/interface-port-number
　　Displays status information about a specific type of interface (for
　　 example, serial) in a Cisco 7120 series router
　　show interfaces type 4/interface-port-number
　　Displays status information about a specific type of interface (for
　　 example, serial) in a Cisco 7140 series router
　　show interfaces type port-adapter-slot-number/interface-port-number
　　Displays status information about a specific type of interface (for
　　 example, serial) in a Cisco 7200 series router
　　show interfaces type 1/interface-port-number
　　Displays status information about a specific type of interface (for
　　example, serial) in a Cisco uBR7223 router
　　show interfaces type 1 or 2/interface-port-number
　　Displays status information about a specific type of interface (for
　　example, serial) in a Cisco uBR7246 router
　　show interfaces type interface-processor-slot-number/port-adapter-
　　slot-number/interface-port-number
　　Displays status information about a specific type of interface (for
　　 example, serial) on a VIP2 or VIP4 in a Cisco 7000 series or Cisco
　　7500 series router
　　Router# show interfaces serial 3/1/0
　　show protocols
　　Displays protocols configured for the entire system and for specific
　　interfaces
　　show running-config
　　Displays the running configuration file
　　show startup-config
　　Displays the configuration stored in NVRAM
　　
　　5. show　Cisco 7200 Series and Cisco　uBR7200 Series Routers
　　下列显示72的SHOW结果！
　　
　　Following is an example of the show interfaces serial port-adapter-
　　slot-number/port-number:channel-group command for Cisco 7200 series
　　and Cisco uBR7200 series routers. It shows all of the information
　　specific to the first multichannel E1/PRI port (port 0) in port
　　adapter slot 2, channel group 1:
　　
　　Router# show interfaces serial 2/0:1
　　
　　Serial2/0:1 is up, line protocol is up (looped)
　　　Hardware is Multichannel E1
　　　Internet address is 1.6.0.1/30
　　　MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, rely 255/255, load
　　1/255
　　　Encapsulation HDLC, loopback not set, keepalive set (10 sec)
　　　Last input 00:00:07, output 00:00:07, 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
　　　　 87 packets input, 6521 bytes, 0 no buffer
　　　　 Received 87 broadcasts, 0 runts, 0 giants
　　　　 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
　　　　 87 packets output, 6521 bytes, 0 underruns
　　　　 0 output errors, 0 collisions, 0 interface resets
　　　　 0 output buffer failures, 0 output buffers swapped out
　　　　 1 carrier transitions
　　　no alarm present
　　　Timeslot(s) Used:1-31, subrate: 64Kb/s, transmit delay is 0 flags