书城教材教辅组网技术实训
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第22章 项目9CDP协议(2)

Sending a holdtime Value of240seconds

Sending CDPV2adVertisements is enabled

SWitch0#copy running-config startup-config

Destination filename[startup-config]?

Building configuration...

[OK]

SWitch0#

对于交换机 SWitch1、SWitch2、SWitch3,其CDP协议参数配置方法与SWitch0相同。

任务4~任务6中路由器的CPD配置与交换机相近,故其配置步骤略去。整个网络配置完成之后,要对交换机和路由器进行验证。

9.3.4结果验证

1.查看路由器Router1的运行配置

Router1#shoW running-config

Building configuration...

Current configuration:563bytes

Version12.2

no serVice passWord-encryption

hostname Router1

enable passWord cisco

ip ssh Version1

interface FastEthernet0/0

ip address10.1.1.1255.255.255.0

duplex auto

speed auto

interface FastEthernet0/1

ip address10.2.2.1255.255.255.0

duplex auto

speed auto

interface Serial0/0

ip address202.66.200.33255.255.255.252

clock rate1000000

router eigrp200

netWork10.1.1.00.0.0.255

netWork10.2.2.00.0.0.255

netWork202.66.200.320.0.0.3

auto-summary

ip classless

line con0

line Vty04

login

end

Router1#

本实训项目网络拓扑与项目6的相同,在项目6中整个网络已经调试连通。路由器Router2的配置情况与路由器Router1的相似,不再赘述。

2.查看交换机Switch1的邻居信息和接口信息

SWitch1#shoW cdp neighbors

Capability Codes:R-Router,T-Trans Bridge,B-Source Route Bridge

S-SWitch,H-Host,I-IGMP,r-Repeater,P-Phone

DeVice ID Local Intrfce Holdtme Capability Platform Port ID

Router1 Fas0/2149RC2600Fas0/0

SWitch1#

SWitch1#shoW cdp int f0/2

FastEthernet0/2is up,line protocol is up

Sending CDP packets eVery60seconds

Holdtime is180seconds

SWitch1#

3.查看路由器Router2的邻居信息和接口信息

Router2#shoW cdp neighbors

Capability Codes:R-Router,T-Trans Bridge,B-Source Route Bridge

S-SWitch,H-Host,I-IGMP,r-Repeater,P-Phone

DeVice ID Local Intrfce Holdtme Capability Platform Port ID

SWitch2 Fas0/0129S2950Fas0/2

SWitch3 Fas0/1129S2950Fas0/1

Router1 Ser0/0153RC2600Ser0/0

Router2#shoW cdp neighbors detail

DeVice ID:SWitch2

Entry address(es):

Platform:cisco2950,Capabilities:SWitch

Interface:FastEthernet0/0,Port ID(outgoing port):FastEthernet0/2

Holdtime:122

Version:

Cisco InternetWork Operating System SoftWare

IOS(tm)C2950SoftWare(C2950-I6Q4L2-M),Version12.1(22)EA4,RELEASE SOFTWARE(fc1)

Copyright(c)1986-2005 by cisco Systems,Inc.

Compiled Wed18-May-0522:31by jharirba

adVertisement Version:2

Duplex:full

DeVice ID:SWitch3

Entry address(es):

Platform:cisco2950,Capabilities:SWitch

Interface:FastEthernet0/1,Port ID(outgoing port):FastEthernet0/1

Holdtime:122

Version:

Cisco InternetWork Operating System SoftWare

IOS(tm)C2950SoftWare(C2950-I6Q4L2-M),Version12.1(22)EA4,RELEASE SOFTWARE(fc1)

Copyright(c)1986-2005 by cisco Systems,Inc.

Compiled Wed18-May-0522:31by jharirba

adVertisement Version:2

Duplex:full

DeVice ID:Router1

Entry address(es):

IPaddress:202.66.200.33

Platform:cisco C2600,Capabilities:Router

Interface:Serial0/0,Port ID(outgoing port):Serial0/0

Holdtime:146

Version:

Cisco InternetWork Operating System SoftWare

IOS(tm)C2600SoftWare(C2600-I-M),Version12.2(28),RELEASE SOFTWARE(fc5)

Copyright(c)1986-2005 by cisco Systems,Inc.

Compiled Wed27-Apr-0419:01by miWang

adVertisement Version:2

Duplex:full

Router2#shoW cdp int

FastEthernet0/0is up,line protocol is up

Sending CDP packets eVery60seconds

Holdtime is180seconds

FastEthernet0/1is up,line protocol is up

Sending CDP packets eVery60seconds

Holdtime is180seconds

Serial0/0is up,line protocol is up

Sending CDP packets eVery60seconds

Holdtime is180seconds

Router2#

9.4实训总结

从结果验证中可以看到详细的邻居设备的信息,达到实训预期效果。CDP协议与SNMP协议结合使用,对于网络管理员管理维护网络设备、排除网络故障将起到较大作用。

9.5实训思考

经过本项目实训之后,请回答下列问题。

1.在Router1上显示CDP激活的端口用什么命令?

2.CDP的通告间隔是什么?

3.CDP 保持时间间隔是什么?它的含义是什么?