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：
<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
