要求：
vlan 10 20通過LS1訪問Server，vlan 30 40通過LS2訪問Server，三層交換負載均衡，訪問Server有冗餘鏈路
架構：
PC機ip爲vlanX.1 所有網關爲.254 LS1真實IP：vlanX.251 LS2真實IP：vlanX.252
配置思路
1、 配置PC的IP
2、 交換機創建vlan並將PC加入相應vlan,交換間鏈路用trunk，PC與交換鏈路用access
3、 LS1創建vlan10 20 30 40 100 LS2創建vlan10 20 30 40 200
4、 LS1、LS2與二層相連鏈路用trunk，與路由相連鏈路用access
5、 爲每個vlan svi創建IP，注意ls1的vlan100 ls2的vlan200是爲了設置IP與路由通信
6、 LS1創建vrrp vrid 10 20 30 40虛擬ip爲vlsn x.254
7、 LS1 vrid 10 20設置優先級高於默認值，使LS1成爲vlan 10 20的master
8、 LS1 vrid 10 20設置G0/0/24端口追蹤，此端口斷開優先級自降100，LS2搶佔爲master
9、 LS2創建vrrp vrid 10 20 30 40虛擬ip爲vlsn x.254
10、 LS2 vrid 30 40設置優先級高於默認值，使LS1成爲vlan 10 20的master
11、 LS2 vrid 30 40設置G0/0/24端口追蹤，此端口斷開優先級自降100，LS1搶佔爲master
12、 LS1、LS2相同vlan的vrid必須一致，否則無法通信，會出現兩個master
13、 LS1、LS2設置默認路由
14、 ISP基本設置
15、 ISP靜態路由
16、 設置通過100.1可以跳轉到vlan10 20，同時設置200.1可以跳轉到vlan10 20但要設置優先級低於默認值，使其成爲浮動路由
17、 設置通過200.1可以跳轉到vlan30 40，同時設置100.1可以跳轉到vlan30 40但要設置優先級低於默認值，使其成爲浮動路由
配置步驟：
1、配置PC機，IP、網關
2、交換機配置
1）劃分VLAN10、VLAN20、VLAN30、VLAN40，將PC機加入VLAN
vlan batch 10 20 30 40//創建VLAN
int e 0/0/11
port link-type access
port default vlan 10
int e 0/0/12
port link-type access
port default vlan 20
int e 0/0/13
port link-type access
port default vlan 30
int e 0/0/14
port link-type access
port default vlan 40
2）PC交換機設爲access鏈路，二層交換與三層交換設爲Trunk鏈路
int e 0/0/1
port link-type trunk
port trunk allow-pass vlan all
int e 0/0/2
port link-type trunk
port trunk allow-pass vlan all
3、LS1配置
1）創建vlan，連二層鏈路trunk，連路由鏈路access
vlan batch 10 20 30 40 100
int g 0/0/1
port link-type trunk
port trunk allow-pass vlan all
int g 0/0/24
port link-type access
port default vlan 100
2）設置vlanif ip，vrrp
int Vlanif 100
ip add 192.168.100.1 24
int Vlanif 10
ip add 192.168.10.251 24
vrrp vrid 10 virtual-ip 192.168.10.254
vrrp vrid 10 priority 150
vrrp vrid 10 track interface g 0/0/24 reduced 100
int Vlanif 20
ip add 192.168.20.251 24
vrrp vrid 20 virtual-ip 192.168.20.254
vrrp vrid 20 priority 150
vrrp vrid 20 track interface g 0/0/24 reduced 100
int Vlanif 30
ip add 192.168.30.251 24
vrrp vrid 30 virtual-ip 192.168.30.254
int Vlanif 40
ip add 192.168.40.251 24
vrrp vrid 30 virtual-ip 192.168.40.254
3）設置通往外網的靜態路由
4、LS2配置
1）創建vlan，連二層鏈路trunk，連路由鏈路access
vlan batch 10 20 30 40 200
int g 0/0/2
port link-type trunk
port trunk allow-pass vlan all
int g 0/0/24
port link-type access
port default vlan 200
2）設置vlanif ip，vrrp
int Vlanif 200
ip add 192.168.200.1 24
int Vlanif 10
ip add 192.168.10.252 24
vrrp vrid 10 virtual-ip 192.168.10.254
int Vlanif 20
ip add 192.168.20.252 24
vrrp vrid 20 virtual-ip 192.168.20.254
int Vlanif 30
ip add 192.168.30.252 24
vrrp vrid 30 virtual-ip 192.168.30.254
vrrp vrid 30 priority 150
vrrp vrid 30 track interface g 0/0/24 reduced 100
int Vlanif 40
ip add 192.168.40.252 24
vrrp vrid 40 virtual-ip 192.168.40.254
vrrp vrid 40 priority 150
vrrp vrid 40 track interface g 0/0/24 reduced 100
3）設置通往外網的靜態路由
5、ISP設置
1）設置IP地址
int g 2/0/1
ip add 192.168.100.254 24
int g 2/0/2
ip add 192.168.200.254 24
int g 0/0/0
ip add 200.10.10.254 24
2）設置浮動路由
ip route-static 192.168.10.0 24 192.168.100.1
ip route-static 192.168.10.0 24 192.168.200.1 preference 61
ip route-static 192.168.20.0 24 192.168.100.1
ip route-static 192.168.20.0 24 192.168.200.1 preference 61
ip route-static 192.168.30.0 24 192.168.200.1
ip route-static 192.168.30.0 24 192.168.100.1 preference 61
ip route-static 192.168.40.0 24 192.168.200.1
ip route-static 192.168.40.0 24 192.168.100.1 preference 61