三层交换机实例三

拓扑图

 

 

S1配置：

Switch>
Switch>en
Switch#conf t
Switch(config)#vl 2
Switch(config-vlan)#vl 3
Switch(config-vlan)#vl 4

Switch(config-vlan)#in r f0/1-2
Switch(config-if-range)#sw ac vl 2
Switch(config-if-range)#exit
Switch(config)#in r f0/3-4
Switch(config-if-range)#sw ac vl 3
Switch(config-if-range)#end
Switch#
Switch#sh vl

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gig0/1, Gig0/2
2 VLAN0002 active Fa0/1, Fa0/2
3 VLAN0003 active Fa0/3, Fa0/4
Switch#sh vl

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gig0/1, Gig0/2
2 VLAN0002 active Fa0/1, Fa0/2
3 VLAN0003 active Fa0/3, Fa0/4
Switch#sh vl

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gig0/1, Gig0/2
2 VLAN0002 active Fa0/1, Fa0/2
3 VLAN0003 active Fa0/3, Fa0/4

witch#
witch#conf t
Switch(config)#in f0/5
Switch(config-if)#sw tr en dot1q
Switch(config-if)#sw mo tr
Switch(config-if)#sw tr al vl 2,3,4
Switch(config-if)#exit

Switch(config)#in vl 2
Switch(config-if)#ip ad 192.168.1.254 255.255.255.0
Switch(config-if)#exit
Switch(config)#in vl 4
Switch(config-if)#ip ad 192.168.3.1 255.255.255.0
Switch(config-if)#exit

Switch(config)#ip routing
Switch(config)#ip route 192.168.2.0 255.255.255.0 192.168.3.2
Switch(config)#exit
Switch#sh ip ro
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route

Gateway of last resort is not set

C 192.168.1.0/24 is directly connected, Vlan2
S 192.168.2.0/24 [1/0] via 192.168.3.2
C 192.168.3.0/24 is directly connected, Vlan4
Switch#

S2配置：
Switch>en
Switch#conf t
Switch(config)#vl 2
Switch(config-vlan)#vl 3
Switch(config-vlan)#vl 4
Switch(config-vlan)#exit

Switch(config)#in r f0/1-2
Switch(config-if-range)#sw ac vl 2
Switch(config-if-range)#exit
Switch(config)#in r f0/3-4
Switch(config-if-range)#sw ac vl 3
Switch(config-if-range)#exit

Switch(config)#in f0/5
Switch(config-if)#sw tr en dot1q //dot之后1是一不是L
Switch(config-if)#sw mo tr
Switch(config-if)#sw tr al vl 2,3,4
Switch(config-if)#exit

Switch(config)#in vl 3
Switch(config-if)#ip ad 192.168.2.254 255.255.255.0
Switch(config-if)#exit
Switch(config)#in vl 4
Switch(config-if)#ip ad 192.168.3.2 255.255.255.0
Switch(config-if)#exit
Switch(config)#ip routing
Switch(config)#ip route 192.168.1.0 255.255.255.0 192.168.3.1
Switch(config)#exit
Switch#sh ip ro
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route

Gateway of last resort is not set

S 192.168.1.0/24 [1/0] via 192.168.3.1
C 192.168.2.0/24 is directly connected, Vlan3
C 192.168.3.0/24 is directly connected, Vlan4
Switch#