两台路由器 一台三层交换机和两层交换机 四台PC机 两台服务器,这一的拓扑图怎么画
用powerpoint画就行
路由器（1）
int f0/0
ip add 17.1.1.1 255.255.255.252
int f0/1
ip add 17.1.1.5 255.255.255.252
int f0/2
ip add 99.9.9.1 255.255.255.0
router ospf 100
network 17.1.1.0 255.255.255.252 area 0
network 17.1.1.4 255.255.255.252 area 0
exit
int range f0/0 -1
ip nat inside
int f0/2
ip nat outside
ip access-list standard 10
permit 172.1.1.0 0.0.0.255
permit 172.1.2.0 0.0.0.255
ip access-list standard 11
permit 172.1.3.0 0.0.0.255
permit 172.1.4.0 0.0.0.255
ip nat pool pool1 99.1.1.3 99.1.1.5 netmask 255.255.255.240
ip nat pool pool2 99.1.1.6 99.1.1.8 netmask 255.255.255.240
ip nat inside source list 10 pool pool1 overload
ip nat inside source list 11 pool pool2 overload
time-range aa
periodic weekdays 09:00 to 18:00
exit
access-list 20 permit 172.1.1.0 0.0.0.255 time-range aa
access-list 20 permit 172.1.2.0 0.0.0.255 time-range aa
access-list 20 permit 172.1.3.0 0.0.0.255 time-range aa
access-list 20 permit 172.1.4.0 0.0.0.255
access-list 20 permit 17.1.1.0 0.0.0.3
access-list 20 permit 17.1.1.4 0.0.0.3
int f0/0
ip access-group 20 in
int f0/1
ip access-group 20 in
交换机（1）
int f0/1
no swi
ip add 17.1.1.2 255.255.255.252
no shut
vlan 10
vlan 20
vlan 30
vlan 40
int vlan 10
ip add 172.1.1.1 255.255.255.0
no shut
int vlan 20
ip add 172.1.2.1 255.255.255.0
no shut
int vlan 30
ip add 172.1.3.1 255.255.255.0
no shut
int vlan 40
ip add 172.1.4.1 255.255.255.0
no shut
router ospf 100
network 17.1.1.0 255.255.255.252 area 0
network 172.1.1.0 255.255.255.0 area 0
network 172.1.2.0 255.255.255.0 area 0
network 172.1.3.0 255.255.255.0 area 0
network 172.1.4.0 255.255.255.0 area 0
spanning-tree mst configuration
revision 1
name 11
instance 0 vlan 1-9
instance 10 vlan 10,20
instance 20 vlan 30,40
spannig-tree mst 10 priority 4096
spannin-tree mst 20 priority 8192
int range f0/21 -22
port-group 1
int range f0/23 -24
port-group 3
int agg 1
swi mode trunk
int agg 3
swi mode trunk
int vlan 10
vrrp 10 priority 120
vrrp 10 ip 172.1.1.254
int vlan 20
vrrp 20 priority 120
vrrp 20 ip 172.1.2.254
int vlan 30
vrrp 30 ip 172.1.3.254
int vlan 40
vrrp 40 ip 172.1.4.254
access-list 120 deny ip 172.1.1.0 0.0.0.255 172.1.2.0 0.0.0.255
access-list 120 permit ip any any
int vlan 10
ip access-group 120 in
交换机（2）
int f0/1
no swi
ip add 17.1.1.6 255.255.255.252
no shut
vlan 10
vlan 20
vlan 30
vlan 40
int vlan 10
ip add 172.1.1.2 255.255.255.0
no shut
int vlan 20
ip add 172.1.2.2 255.255.255.0
no shut
int vlan 30
ip add 172.1.3.2 255.255.255.0
no shut
int vlan 40
ip add 172.1.4.2 255.255.255.0
no shut
spanning mst configuration
revision 1
name 11
instance 0 vlan 1-9
instance 10 vlan 10,20
instance 20 vlan 30,40
spanning mst 10 priority 8192
spanning mst 20 priority 4096
router ospf 100
network 17.1.1.4 255.255.255.252 area 0
network 172.1.1.0 255.255.255.0 area 0
network 172.1.2.0 255.255.255.0 area 0
network 172.1.3.0 255.255.255.0 area 0
network 172.1.4.0 255.255.255.0 area 0
int range f0/21 -22
port-group 2
int range f0/23 -24
port-group 3
int agg 2
swi mode trunk
int agg 3
swi mode trunk
int vlan 10
vrrp 10 ip 172.1.1.254
int vlan 20
vrrp 20 ip 172.1.2.254
int vlan 30
vrrp 30 priority 120
vrrp 30 ip 172.1.3.254
int vlan 40
vrrp 40 priority 120
vrrp 40 ip 172.1.4.254
access-list 120 deny ip 172.1.1.0 0.0.0.255 172.1.2.0 0.0.0.255
access-list 120 permit ip any any
int vlan 10
ip access-group 120 in
交换机（3）
vlan 10
vlan 20
vlan 30
vlan 40
spanning mst configuration
revision 1
name 11
instance 0 vlan 1-9
instance 10 vlan 10,20
instance 20 vlan 30,40
int range f0/21 -22
port-group 1
int range f0/23 -24
port-group 2
int agg 1
swi mode trunk
int agg 2
swi mode trunk
int range f0/1 -5
swi acc vlan 10
int range f0/6 -10
swi acc vlan 20
int range f0/11 -15
swi acc vlan 30
int range f0/16 -20
swi acc vlan 40
interface range f0/5 -24
switchport port-security
switchport port-security maximum 2
switchport port-security rioiation shutdown
我简单给你用思科的模拟器画了一个，注意把2个PC机变为4个即可。拓扑图如下：
很简单的
首先是外网连接3层交换，3层交换下面连接2个路由器（网关冗余、热备份）
路由器下面各接一个二层交换机 每个交换机下面接2PC+一个服务器
当然了办法有很多 不过原理上这样就差不多
看你干嘛用了 如果说谁问你了 你这样回答他不会说你错的
