网络工程师经典排错项目之 STP + VRRP综合项目

企业开发 2018-12-03 10:50:46 阅读次数: 0

实验类型：排错
实验需求：
1.PC-1属于 vlan 10 ；
IP：192.168.10.0/24
虚拟IP：192.168.10.250
2.PC-2属于 vlan 20 ；
IP：192.168.20.0/24
虚拟IP：192.168.20.250
3.将SW1配置为 VLAN 10的主网关，SW2作为备份网关；
4.将SW2配置为 VLAN 20的主网关，SW1作为备份网关；
5.将SW3配置为 VLAN 10的根交换机
6.将SW1配置为 VLAN 20的根交换机
7.确保主网关故障与否，PC-1与PC-2都可以
一直互相Ping 通
8.写出：PC-1 ping PC-2 时的数据转发路径；
9.配置互通后，判断数据转发路径是否最优，提出建议方案
注意：
如果有需要，可以删除和增加对应的VLAN信息

实验拓扑图如下：

网络工程师经典排错项目之 STP + VRRP综合项目

<SW1>dis cu

#
sysname SW1
#
vlan batch 10 30
#
stp instance 20 priority 0
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
stp region-configuration
region-name HW
revision-level 1
instance 10 vlan 10
instance 20 vlan 30
active region-configuration
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif10
ip address 192.168.1.251 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.1.250
#
interface Vlanif30
ip address 192.168.20.251 255.255.255.0
vrrp vrid 20 virtual-ip 192.168.20.250
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
port link-type access
port default vlan 10
#
interface GigabitEthernet0/0/13
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/14
port link-type trunk
port trunk allow-pass vlan 30
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return

<SW2>dis cu

#
sysname SW2
#
vlan batch 10 20
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
stp region-configuration
region-name HW
revision-level 1
instance 10 vlan 10
instance 20 vlan 20
active region-configuration
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
ip address 192.168.10.252 255.255.255.0
vrrp vrid 10 virtual-ip 192.168.10.250
vrrp vrid 10 priority 110
#
interface Vlanif20
ip address 192.168.20.252 255.255.255.0
vrrp vrid 20 virtual-ip 192.168.20.254
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/24
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return
<SW2>

 <SW3>dis cu

#
sysname SW3
#
vlan batch 10 30
#
stp instance 10 priority 4096
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
stp region-configuration
region-name HH
revision-level 1
instance 10 vlan 10
instance 20 vlan 20
active region-configuration
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return
<SW3>

<SW4>dis cu

#
sysname SW4
#
vlan batch 10 20
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
stp region-configuration
region-name HW
revision-level 1
instance 10 vlan 10
instance 20 vlan 20
active region-configuration
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return
<SW4>

实验答案：

写出找到的错误点
1.vlanif10地址配置错误；
2.SW1上面将vlanif20的配置配错在了vlanif30上；
3.SW1上vlanif10的vrrp vrid 1 virtual-ip 192.168.1.250
配置错误；
4.SW1的g0/0/14接口需允许所有vlan通过；
5.SW1的 vlanif 10未设置vrrp优先级；
6.SW1的 vlanif 20未设置vrrp优先级；
7.SW1的g0/0/12应配置未trunk，且允许所有vlan通过；
8.SW1的stp配置错误；
9.SW3未创建vlan20；
10.SW1、sw2未配置stp优先级；
11.SW3的stp区域名称配置错误，应改为 region-name HW
12.SW4未将g0/0/1和g0/0/2配置未access模式

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