1、网络拓扑图
2、网络知识
1）vrrp（虚拟路由冗余协议），master和backup选举
首先，比较优先级，优先级高的为master，低的为backup，默认为100，取值范围0-255
其次，比较IP地址，大的优先
2）master工作过程
master每秒发送一个通告报文，backup收到通告报文，判断master的状态
master发送无故arp，全网通告virtual-ip、virtual-mac，backup不处理
backup设备在该定时器（master-down-interval）超时后仍未收到通告报文，则会转换未master
master-down-interval=（3*通告时间）+（256-priority）/256
如果收到比自己优先级小的报文，且该报文优先级是0时，定时时间设置未skew——time，如果该报文优先级不是0，丢弃报文，立即成为master
3、具体配置
1）R1
<r1>display current-configuration
[V200R003C00]
#
sysname r1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
drop illegal-mac alarm
#
wlan ac-global carrier id other ac id 0
#
set cpu-usage threshold 80 restore 75
#
acl number 2000
rule 5 permit
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 30.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 40.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address 100.1.1.1 255.255.255.252
nat outbound 2000
#
interface NULL0
#
interface LoopBack0
ip address 1.1.1.1 255.255.255.255
#
ospf 100 router-id 1.1.1.1
default-route-advertise always type 1
area 0.0.0.0
network 30.1.1.0 0.0.0.255
network 40.1.1.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r1>
2)SW1
<sw1>display current-configuration
#
sysname sw1
#
vlan batch 10 20 30 40
#
stp instance 1 root primary
stp instance 2 root secondary
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
stp region-configuration
region-name gd
revision-level 1
instance 1 vlan 10
instance 2 vlan 20
active region-configuration
#
drop-profile default
#
ip pool dhcpvlan10
gateway-list 10.1.1.100
network 10.1.1.0 mask 255.255.255.0
excluded-ip-address 10.1.1.200 10.1.1.254
lease day 10 hour 8 minute 0
dns-list 8.8.8.8
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user yhs password cipher UJ+TCa*4$!]NZPO3JBXBHA!!
local-user yhs privilege level 15
local-user yhs service-type telnet ssh ftp
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
ip address 10.1.1.1 255.255.255.0
vrrp vrid 1 virtual-ip 10.1.1.100
vrrp vrid 1 priority 120
vrrp vrid 1 preempt-mode timer delay 20
vrrp vrid 1 track interface GigabitEthernet0/0/5 reduced 30
dhcp select global
#
interface Vlanif20
ip address 20.1.1.1 255.255.255.0
vrrp vrid 2 virtual-ip 20.1.1.100
#
interface Vlanif30
ip address 30.1.1.1 255.255.255.0
#
interface MEth0/0/1
#
interface Eth-Trunk1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/1
eth-trunk 1
#
interface GigabitEthernet0/0/2
eth-trunk 1
#
interface GigabitEthernet0/0/3
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/4
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/5
port link-type access
port default vlan 30
#
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
#
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
#
ospf 100
import-route direct
area 0.0.0.0
network 30.1.1.0 0.0.0.255
#
user-interface con 0
idle-timeout 0 0
user-interface vty 0 4
#
return
<sw1>
4、结果
