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路由器基本知识及应用实例(DOC格式)-第8章

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Copyright (c) 1986…2003 by cisco Systems; Inc。
piled wed 15…Oct…03 02:21 by phanguye
Image text…base: 0x80008088; data…base: 0x80C524F8

cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory。
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0; mask 49
Bridging software。
X。25 software; Version 3。0。0。
Basic Rate ISDN software; Version 1。1。
2 Ethernet/IEEE 802。3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non…volatile configuration memory。
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)


 ……System Configuration Dialog ………

Would you like to enter the initial configuration dialog? 'yes/no': n

Press RETURN to get started!

00:00:19: %LINK…3…UPDOWN: Interface BRI0/0; changed state to up
00:00:19: %LINK…3…UPDOWN: Interface Ethernet0/0; changed state to up
00:00:19: %LINK…3…UPDOWN: Interface Ethernet0/1; changed state to up
00:00:19: %LINK…3…UPDOWN: Interface Serial0/0; changed state to down
00:00:19: %LINK…3…UPDOWN: Interface Serial0/1; changed state to down
00:00:20: %LINEPROTO…5…UPDOWN: Line protocol on Interface BRI0/0; changed state to down
00:00:20: %LINEPROTO…5…UPDOWN: Line protocol on Interface Ethernet0/0; changed state to up
Router》
00:00:20: %LINEPROTO…5…UPDOWN: Line protocol on Interface Ethernet0/1; changed state to up
00:00:20: %LINEPROTO…5…UPDOWN: Line protocol on Interface Serial0/0; changed state to down
00:00:20: %LINEPROTO…5…UPDOWN: Line protocol on Interface Serial0/1; changed state to down
00:00:50: %SYS…5…RESTART: System restarted ……
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600…IS…M); Version 12。3(3a); RELEASE SOFTWARE (fc2)
Copyright (c) 1986…2003 by cisco Systems; Inc。
piled wed 15…Oct…0302:21 by phanguye
00:00:50: %LINK…5…CHANGED: Interface BRI0/0; changed state to administratively down
00:00:52: %LINK…5…CHANGED: Interface Ethernet0/0; changed state to administratively down
00:00:52: %LINK…5…CHANGED: Interface Serial0/0; changed state to administratively down
00:00:52: %LINK…5…CHANGED: Interface Ethernet0/1; changed state to administratively down
00:00:52: %LINK…5…CHANGED: Interface Serial0/1; changed state to administratively down
00:00:53: %LINEPROTO…5…UPDOWN: Line protocol on Interface Ethernet0/0; changed state to down
00:00:53: %LINEPROTO…5…UPDOWN: Line protocol on Interface Ethernet0/1; changed state to down
Router》
Router》enable
Router#copy startup…config running…config
Destination filename 'running…config'?
1324 bytes copied in 2。35 secs (662 bytes/sec)
Router#
00:01:24: %LINEPROTO…5…UPDOWN: Line protocol on Interface BRI0/0:1; changed state to down
00:01:24: %LINEPROTO…5…UPDOWN: Line protocol on Interface BRI0/0:2; changed state to down
Router#configure terminal
Enter configuration mands; one per line。 End with CNTL/Z。
Router(config)#enable secret cisco

Router(config)#^Z
00:01:54: %SYS…5…CONFIG_I: Configured from console by console
Router#show ip interface brief

Interface      IP…Address        OK?     Method     Status                   Protocol
Ethernet0/0    10。200。40。37      YES     TFTP       administratively down    down
Serial0/0      unassigned        YES     TFTP       administratively down    down
BRI0/0         193。251。121。157   YES     unset      administratively down    down
BRI0/0:1       unassigned        YES     unset      administratively down    down
BRI0/0:2       unassigned        YES     unset      administratively down    down
Ethernet0/1    unassigned        YES     TFTP       administratively down    down
Serial0/1      unassigned        YES     TFTP       administratively down    down
Loopback0      193。251。121。157   YES     TFTP       up                       up
Router#configure terminal
Enter configuration mands; one per line。 End with CNTL/Z。
Router(config)#interface Ethernet0/0
Router(config…if)#no shutdown
Router(config…if)#
00:02:14: %LINK…3…UPDOWN: Interface Ethernet0/0; changed state to up
00:02:15: %LINEPROTO…5…UPDOWN: Line protocol on Interface Ethernet0/0; changed state to up
Router(config…if)#interface BRI0/0
Router(config…if)#no shutdown
Router(config…if)#
00:02:26: %LINK…3…UPDOWN: Interface BRI0/0:1; changed state to down
00:02:26: %LINK…3…UPDOWN: Interface BRI0/0:2; changed state to down
00:02:26: %LINK…3…UPDOWN: Interface BRI0/0; changed state to up
00:02:115964116991: %ISDN…6…LAYER2UP: Layer 2 for Interface BR0/0; TEI 68 changed to up
Router(config…if)#^Z
Router#
00:02:35: %SYS…5…CONFIG_I: Configured from console by console
Router#copy running…config startup…config
Destination filename 'startup…config'?
Building configuration。。。
'OK'
Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600…I…M); Version 12。3(3a); RELEASE SOFTWARE (fc2)
Copyright (c) 1986…2003 by cisco Systems; Inc。
piled wed 15…Oct…03 02:21 by phanguye
Image text…base: 0x80008088; data…base: 0x80C524F8

ROM: System Bootstrap; Version 11。3(2)XA4; RELEASE SOFTWARE (fc1)

Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is 〃flash:c2600…i…mz。123…3a。bin〃

cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory。
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0; mask 49
Bridging software。
X。25 software; Version 3。0。0。
Basic Rate ISDN software; Version 1。1。
2 Ethernet/IEEE 802。3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non…volatile configuration memory。
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

Configuration register is 0x2142

Router#configure terminal
Enter configuration mands; one per line。 End with CNTL/Z。
Router(config)#config…register 0x2102
Router(config)#^Z
00:03:20: %SYS…5…CONFIG_I: Configured from console by console

Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600…I…M); Version 12。S ; RELEASE SOFTWARE (fc2)
Copyright (c) 1986…2003 by cisco Systems; Inc。
piled wed 15…Oct…03 02:21 by phanguye
Image text…base: 0x80008088; data…base: 0x80C524F8

ROM: System Bootstrap; Version 11。3(2)XA4; RELEASE SOFTWARE (fc1)

Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is 〃flash:c2600…i…mz。123…3a。bin〃

cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory。
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0; mask 49
Bridging software。
X。25 software; Version 3。0。0。
Basic Rate ISDN software; Version 1。1。
2 Ethernet/IEEE 802。3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non…volatile configuration memory。
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

Configuration register is 0x2142 (will be 0x2102 at next reload)

Router#

2。2。4。2 控制口的操作
每个路由器都有一个控制口,控制口的线号通常为0。使用标准的RS232线连接控制口进行配置工作,如 Figure 4…1。 通常每个路由器都带有一根控制口线。 
Figure 4…1。 控制口线的连接


可以使用VT100终端模拟器来连接路由器,连接的默认配置如下:
9600 baud rate?
No parity
8 data bits
1 stop bit 
No flow control
 使用line命令;设置对控制口的访问。下面是基本配置: 
Router#config terminal
Router(config)#service linenumber
Router(config)#line console 0
Router(config…line)#location Building…2A
Router(config…line)#exec…timeout 30 0

其中location 命令定义了设备的位置,service linenumber 命令向用户显示设备的位置信息。exec…timeout 30 0的作用是:如果控制口空闲超过30分钟,则自动关闭这次会话。
还可以为控制口的访问设定用户名和口令,并强制使用本地用户。 
Router(config)#username bob password letmein
Router(config)#line console 0
Router(config…line)#login local

2。2。5 常见故障分析
2。2。5。1  CPU 利用率过高
 高CPU利用率征兆
下面列出了一些CPU利用率过高的通常的征兆。如果你注意有这些征兆出现,请遵照该文件中差错的步骤消除故障。
show processes cpu
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