【正文】 7(configif)exit R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/0 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)ip route s0/1/1 R7(config)exit R7(config)router eigrp 1 R7(configrouter)no autosummary R7(configrouter)redistribute static R7(configrouter)work R7(configrouter)exit R8 Routeren Routerconf ter s0/1/0(config)hostname R8 R8(config)interface s0/1/0 R8(configif)ip address R8(configif)no shutdown R8(configif)interface f0/0 R8(configif)ip address R8(configif)no shutdown R8(config)interface s0/1/1 R8(configif)ip address R8(configif)no shutdown R8(config)router eigrp 1 R8(configrouter)no autosummary R8(configrouter)work R8(configrouter)work R8(configrouter)work R8(configrouter)exit R9 Routeren Routerconf ter Router(config)hostname R9 R9(config)interface s0/1/0 R9(configif)ip address R9(configif)no shutdown R9(configif)interface f R9(configif)interface f0/0 R9(configif)ip address R9(configif)no shutdown R9(config)interface s0/1/1 R9(configif)ip address R9(configif)clock rate 128000 R9(configif)no shutdown R9(config)router eigrp 1 R9(configrouter)no autosummary R9(configrouter)work R9(configrouter)work R9(configrouter)work R9(configrouter)work R9(configrouter)exit R10 Routeren Routerconf ter Router(config)hostname R10 R10(config)interface f0/0 R10(configif)ip address R10(configif)no shutdown R10(config)interface s0/1/1 R10(configif)ip address R10(configif)no shutdown R10(config)router eigrp 1 R10(configrouter)no autosummary R10(configrouter)work R10(configrouter)exit S1 Switchen Switchconf ter Switch(config)hostname S1 S1(config)interface vlan1 S1(configif)ip address S1(configif)no shutdown S2 Switchen Switchconf ter Switch(config)hostname S2 S2(config)interface vlan1 S2(configif)ip address S2(configif)no shutdown S3 Switchen Switchconf ter Switch(config)hostname S3 S3(config)interface vlan1 S3(configif)ip address S3(configif)no shutdown MS1 Switchen Switchconf ter Switch(config)hostname MS1 MS1(config)interface f0/1 MS1(configif)switchport trunk encapsulation dot1q MS1(configif)switchport mode trunk MS1(configif)switchport trunk allowed vlan MS1(configif)interface f0/2 MS1(configif)switchport trunk encapsulation dot1q MS1(configif)switchport mode trunk MS1(configif)switchport trunk allowed vlan MS1(configif)exit MS1(config)interface portchannel 1 MS1(configif)interface rang f0/12 MS1(configifrange)channelgroup 1 mode on MS1(configifrange)portchannel loadbalance dstip MS1(config)exit MS2 Switchen Switchconf ter Switch(config)hostname MS2 MS2(config)vlan 10 MS2(configvlan)name vlan10 MS2(configvlan)exit MS2(config)interface f0/1 MS2(configif)switchport trunk encapsulation dot1q MS2(configif)switchport mode trunk MS2(configif)switchport trunk allowed vlan MS2(configif)exit MS2(config)interface f0/2 MS2(configif)switchport trunk encapsulation dot1q MS2(configif)switchport mode trunk MS2(configif)switchport trunk allowed vlan MS2(configif)exit MS2(config)interface portchannel 1 MS2(configif)interface rang f0/12 MS2(configifrange)channelgroup 1 mode on MS2(configifrange)portchannel loadbalance dstip MS2(config)exit MS3 Switchen Switchconf ter Switch(config)hostname MS3 MS3(config)vlan 20 MS3(configvlan)name vlan20 MS3(configvlan)exit MS3(config)interface f0/1 MS3(configif)switchport trunk encapsulation dot1q MS3(configif)switchport mode trunk MS3(configif)switchport trunk allowed vlan MS3(configif)interface f0/2 MS3(configif)switchport trunk encapsulation dot1q MS3(configif)switchport mode trunk MS3(configif)switchport trunk allowed vlan MS3(configif)exit MS3(config)interface portchannel 1 MS3(configif)interface rang f0/12 MS3(configifrange)channelgroup 1 mode on MS3(configifrange)portchannel loadbalance dstip MS3(config)exit MS4 Switchen Switchconf ter Switch(config)hostname MS4 MS4(config)interface f0/1 MS4(configif)switchport trunk encapsulation dot1q MS4(configif)switchport mode trunk MS4(configif)switchport trunk allowed vlan MS4(configif)interface f0/2 MS4(configif)switchport trunk encapsulation dot1q MS4(configif)switchport mode trunk MS4(configif)switchport trunk allowed vlan MS4(configif)interface portchannel 1 MS4(configif)interfac