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实验拓扑:
实验要求:
在交换机上面配置VLAN,TRUNK,VTP,STP,SPANNING TREE PORTFAST(速端口)和UPLINKFAST(上行速链路).
在路由器上面配置单臂路由实现不同VLAN 之间通讯,配置双向HSRP 热备份组,实现负载均衡.
配置部分:
1.SW1 配置:
SW1#vlan database SW1(vlan)#vlan 2 SW1(vlan)#vlan 3 SW1(vlan)#vtp server SW1(vlan)#vtp domain sy SW1(vlan)#vtp password cisco SW1(vlan)#vtp pruning SW1(vlan)#exit SW1#conf t SW1(config)#int rang f0/1 - 5 SW1(config-if-range)#switchport mode trunk SW1(config-if-range)#exit SW1(config)#int range f0/3 - 4 SW1(config-if-range)#channel-group 1 mode on // 配置以太通道 SW1(config-if-range)#end 2.SW2 配置: SW2#vlan database SW2(vlan)#vtp server SW2(vlan)#vtp domain sy SW2(vlan)#vtp password cisco SW2(vlan)#exit SW2#conf t SW2(config)#int range f0/1 - 5 SW2(config-if-range)#switchport mode trunk SW2(config-if-range)#exit SW2(config)#int range f0/3 - 4 SW2(config-if-range)#channel-group 1 mode on // 配置以太通道 SW2(config-if-range)#end 3.SW3 配置: SW3#vlan database SW3(vlan)#vtp client SW3(vlan)#vtp domain sy SW3(vlan)#vtp password cisco SW3(vlan)#exit SW3#conf t SW3(config)#int rang f0/1 -2 SW3(config-if-range)#int rang f0/1 - 2 SW3(config-if-range)#switchport mode trunk
SW3(config-if-range)#end
4.SW4 配置: SW4#vlan database SW4(vlan)#vtp client SW4(vlan)#vtp domain sy SW4(vlan)#vtp password cisco SW4(vlan)#exit SW4#conf t SW4(config)#int range f0/1 - 2 SW4(config-if-range)#switchport mode trunk SW4(config-if-range)#end SW4#conf t SW4(config)#spanning-tree uplinkfast SW4(config)#int f0/4 SW4(config-if)#spanning-tree portfast SW4(config-if)#end 5.SW3 配置: SW3#conf t SW3(config)#spanning-tree uplinkfast SW3(config)#int f0/4 SW3(config-if)#spanning-tree portfast SW3(config-if)#exit SW3(config)#end 6.SW2 配置: SW2#conf t SW2(config)#spanning-tree vlan 3 priority 4096 // (spanning-tree vlan 3 root primary)设置为VLAN3 的根桥 SW2(config)#end 7.SW1 配置: SW1#conf t SW1(config)#spanning-tree vlan 2 priority 4096 // (spanning-tree vlan 2 root primary)设置为VLAN2 的根桥 SW1(config)#end 8.R1 配置: R2#conf t R1(config)#int f0/0 R1(config-if)#no shutdown R1(config-if)#exit R1(config)#int f0/0.1 R1(config-subif)#encapsulation dot1Q 1 // HSRP 配置部分 R1(config-subif)#ip address 192.168.1.254 255.255.255.0
R1(config-subif)#no shutdown
R1(config-subif)#exit R1(config)#int f0/0.2 R1(config-subif)#encapsulation dot1q 2 R1(config-subif)#ip address 192.168.2.254 255.255.255.0 R1(config-subif)#no shutdown R1(config-subif)#exit R1(config-subif)#int f0/0.3 R1(config-subif)#encapsulation dot1q 3 R1(config-subif)#ip address 192.168.3.254 255.255.255.0 R1(config-subif)#no shutdown R1(config-subif)#exit R1(config)#int f0/0.1 R1(config-subif)#standby 1 ip 192.168.1.1 R1(config-subif)#standby 1 priority 200 // 默认优先级为100,这里更改为200 是使其成为活跃路由器 R1(config-subif)#standby 1 preempt // 配置抢占,使得本路由器从DOWN 中恢复了后仍可以抢占为活跃路由器 R1(config-subif)#exit R1(config)#int f0/0.2 R1(config-subif)#standby 2 ip 192.168.2.1 R1(config-subif)#standby 2 priority 200 R1(config-subif)#standby 2 preempt R1(config-subif)#exit R1(config)#int f0/0.3 R1(config-subif)#standby 3 ip 192.168.3.1 9.R2 配置: R2#conf t R2(config)#int f0/0 R2(config-if)#no shutdown R2(config-if)#exit R2(config)#int f0/0.2 //HSRP 配置部分 R2(config-subif)#encapsulation dot1q 253 255.255.255.0 R2(config-subif)#no shutdown R2(config-subif)#int f0/0.3 R2(config-subif)#encapsulation dot1q 3 R2(config-subif)#ip address 192.168.3.253 255.255.255.0 R2(config-subif)#no shutdown R2(config-subif)#exit R2(config)#int f0/0.1 R2(config-subif)#encapsulation dot1Q 1 R2(config-subif)#ip address 192.168.1.253 255.255.255.0 R2(config-subif)#no shutdown R2(config-subif)#end R2(config-subif)#exit
R2(config)#int f0/0.1
//这一部分没有配置抢占,它将成为备用路由器
R2(config-subif)#standby 1 ip 192.168.1.1 R2(config-subif)#exit R2(config)#int f0/0.2 R2(config-subif)#standby 2 ip 192.168.2.1 R2(config-subif)#exit R2(config)#int f0/0.3 R2(config-subif)#standby 3 ip 192.168.3.1 R2(config-subif)#standby 3 priority 200 R2(config-subif)#standby 3 preempt 10.客户机配置: PC1: IP:192.168.2.2/24 GW:192.168.2.1 //这里的网关地址实际上是虚拟出来的地址,真正转发数据的是活跃路由器 PC3: IP:192.168.3.3/24 GW:192.168.3.1
实验效果验证部分:
sw3#show vlan-switch brief VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 1 default active Fa0/0, Fa0/3, Fa0/5, Fa0/6 Fa0/7, Fa0/8, Fa0/9, Fa0/10 Fa0/11, Fa0/12, Fa0/13, Fa0/14 Fa0/15 2 VLAN0002 active Fa0/4 3 VLAN0003 active 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active sw3#
sw3#sho vtp status
VTP Version : 2 Configuration Revision : 1 Maximum VLANs supported locally : 256 Number of existing VLANs : 7 VTP Operating Mode : Client VTP Domain Name : sy VTP Pruning Mode : Enabled VTP V2 Mode : Disabled VTP Traps Generation : Disabled MD5 digest : 0xC6 0xB6 0xCD 0xF2 0xA5 0x97 0x3C 0x7B Configuration last modified by 0.0.0.0 at 3-1-02 00:16:27 r1#show standby brief P indicates configured to preempt. | Interface Grp Prio P State Active Standby Virtual IP Fa0/0.1 1 100 P Active local 192.168.1.253 192.168.1.1 Fa0/0.2 2 200 P Active local 192.168.2.253 192.168.2.1 Fa0/0.3 3 100 Standby 192.168.3.253 local 192.168.3.1 r1# r2#sho standby brief P indicates configured to preempt. | Interface Grp Prio P State Active Standby Virtual IP Fa0/0.1 1 100 Standby 192.168.1.254 local 192.168.1.1 Fa0/0.2 2 100 Standby 192.168.2.254 local 192.168.2.1 Fa0/0.3 3 200 P Active local 192.168.3.254 192.168.3.1 r2#show standby FastEthernet0/0.1 - Group 1 State is Standby 4 state changes, last state change 00:06:53 Virtual IP address is 192.168.1.1 Active virtual MAC address is 0000.0c07.ac01 Local virtual MAC address is 0000.0c07.ac01 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 0.716 secs Preemption disabled Active router is 192.168.1.254, priority 100 (expires in 8.364 sec) Standby router is local Priority 100 (default 100) IP redundancy name is "hsrp-Fa0/0.1-1" (default) FastEthernet0/0.2 - Group 2 State is Standby 4 state changes, last state change 00:06:53 Virtual IP address is 192.168.2.1 Active virtual MAC address is 0000.0c07.ac02 Local virtual MAC address is 0000.0c07.ac02 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 0.824 secs Preemption disabled Active router is 192.168.2.254, priority 200 (expires in 8.348 sec) Standby router is local Priority 100 (default 100) IP redundancy name is "hsrp-Fa0/0.2-2" (default) FastEthernet0/0.3 - Group 3 State is Active 2 state changes, last state change 00:09:31 Virtual IP address is 192.168.3.1 Active virtual MAC address is 0000.0c07.ac03 Local virtual MAC address is 0000.0c07.ac03 (v1 default) Hello time 3 sec, hold time 10 sec Next hello sent in 2.048 secs Preemption enabled Active router is local Standby router is 192.168.3.254, priority 100 (expires in 8.676 sec) Priority 200 (configured 200) IP redundancy name is "hsrp-Fa0/0.3-3" (default) r2# pc2#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 60/84/108 ms pc2# pc2# pc2#ping 192.168.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 60/66/76 ms pc2# pc2# pc2#ping 192.168.3.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 32/45/76 ms pc2#
本实验平台基于 DynamipsGUI 2.83 未注册版,感谢小凡
本文出自 “ ppeng” 博客,请务必保留此出处 http://ppeng.blog.51cto.com/134241/78373
本文出自 51CTO.COM技术博客
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