1. 有關命令

端口設置 任務 命令

設置HDLC封裝 encapsulation hdlc

設置DCE端線路速度 clockrate speed

復位一個硬件接口 clear interface serial unit

顯示接口狀態 show interfaces serial [unit] 1

注:1.以下給出一個顯示Cisco同步串口狀態的例子.

Router#show interface serial 0

Serial 0 is up, line PRotocol is up

Hardware is MCI Serial

Internet address is 150.136.190.203, subnet mask is 255.255.255.0

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 1/255

Encapsulation HDLC, loopback not set, keepalive set (10 sec)

Last input 0:00:07, output 0:00:00, output hang never

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

Five minute input rate 0 bits/sec, 0 packets/sec

Five minute output rate 0 bits/sec, 0 packets/sec

16263 packets input, 1347238 bytes, 0 no buffer

Received 13983 broadcasts, 0 runts, 0 giants

2 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 2 abort

22146 packets output, 2383680 bytes, 0 underruns

0 output errors, 0 collisions, 2 interface resets, 0 restarts

1 carrier transitions

2. 舉例

設置如下：

Router1:

interface Serial0

ip address 192.200.10.1 255.255.255.0

clockrate 1000000 <

>Router2:

interface Serial0

ip address 192.200.10.2 255.255.255.0

!

3. 舉例使用E1線路實現多個64K專線連接.

相關命令: 任務 命令

進入controller配置模式 controller {t1 e1} number

選擇幀類型 framing {crc4 no-crc4}

選擇line-code類型 linecode {ami b8zs hdb3}

建立邏輯通道組與時隙的映射 channel-group number timeslots range1

顯示controllers接口狀態 show controllers e1 [slot/port]2

注: 1. 當鏈路為T1時,channel-group編號為0-23, Timeslot范圍1-24; 當鏈路為E1時, channel-group編號為0-30, Timeslot范圍1-31.

2.使用show controllers e1觀察controller狀態,以下為幀類型為crc4時controllers正常的狀態.

Router# show controllers e1

e1 0/0 is up.

Applique type is Channelized E1 - unbalanced

Framing is CRC4, Line Code is HDB3 No alarms detected.

Data in current interval (725 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 24 hours) 0 Line Code Violations, 0 Path Code Violations,

0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

以下例子為E1連接3條64K專線, 幀類型為NO-CRC4,非平衡鏈路,路由器具體設置如下:

shanxi#wri t

Building configuration...

Current configuration:

!

version 11.2

no service udp-small-servers

no service tcp-small-servers

!

hostname shanxi

!

enable secret 5 $1$XN08$Ttr8nfLoP9.2RgZhcBzkk/

enable passWord shanxi

!

!

ip subnet-zero

!

controller E1 0

framing NO-CRC4

channel-group 0 timeslots 1

channel-group 1 timeslots 2

channel-group 2 timeslots 3

!

interface Ethernet0

ip address 133.118.40.1 255.255.0.0

media-type 10BaseT

!

interface Ethernet1

no ip address

shutdown

!

interface Serial0:0

ip address 202.119.96.1 255.255.255.252

no ip mroute-cache

!

interface Serial0:1

ip address 202.119.96.5 255.255.255.252

no ip mroute-cache

!

interface Serial0:2

ip address 202.119.96.9 255.255.255.252

no ip mroute-cache

!

no ip classless

ip route 133.210.40.0 255.255.255.0 Serial0:0

ip route 133.210.41.0 255.255.255.0 Serial0:1

ip route 133.210.42.0 255.255.255.0 Serial0:2

!

line con 0

line aux 0

line vty 0 4

password shanxi

login

!

end