拓扑图如下：
要求：1、PC0能PING通PC1
2、正常情况下VLAN 10走A线路去路由器；当A断了时，走线路BC到路由器。 正常情况下VLAN 20走B线路去路由器；当B断了时，走线路BA到路由器。
具体配置步骤如下：
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int f0/1
Router(config-if)#no sh
Router(config-subif)#encapsulation dot1Q 10
Router(config-subif)#ip add 192.168.2.1 255.255.255.0
Router(config-subif)#int f0/1.2
%LINK-5-CHANGED: Interface FastEthernet0/1.2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1.2, changed state to up
Router(config-subif)#encapsulation dot1Q 20
Router(config-subif)#ip add 192.168.1.1 255.255.255.0
姚文元墓Router(config-subif)#no sh
Router(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
Router#wr
[OK]
2、 交换机switch1上配置VTP server ，并把相应接口配置成TRUNK模式 Switch>en
Switch#vlan database
% Warning: It is recommended to configure VLAN from config mode,
as VLAN database mode is being deprecated. Please consult user
documentation for configuring VTP/VLAN in config mode.
Switch(vlan)#vtp server
Device mode already VTP SERVER.
Switch(vlan)#vtp domain we
Changing VTP domain name from NULL to we
Switch(vlan)#vtp password 123
Setting device VLAN database password to 123
Switch(vlan)#vlan 10网站
VLAN 10 added:
Name: VLAN0010
Switch(vlan)#vlan 20
VLAN 20 added:
Name: VLAN0020
Switch(vlan)#exi
APPLY completed.
Switch#config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int range f0/1 - 4
Switch(config-if-range)#sw
Switch(config-if-range)#switchport mode trunk
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
Switch(config-if-range)#end
%SYS-5-CONFIG_I: Configured from console by console
Switch#wr
[OK]
3检验检疫、交换机switch2上配置张生伟
VTP client，并把相应接口加入VLAN中。配置成VLAN 10 的根网桥 Switch>en
Switch#vlan database
% Warning: It is recommended to configure VLAN from config mode,
as VLAN database mode is being deprecated. Please consult user
documentation for configuring VTP/VLAN in config mode.
Switch(vlan)#vtp c
Switch(vlan)#vtp client
Setting device to VTP CLIENT mode.
Switch(vlan)#vtp domain we
Domain name already set to we.
Switch(vlan)#vtp password 123
电影马本斋Setting device VLAN database password to 123
Switch(vlan)#exit
APPLY completed.
Switch#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/4, 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, Gig1/1
Gig1/2
10 VLAN0010 active
20 VLAN0020 active
1002 fddi-default act/unsup
如何培养团队精神1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
10 enet 100010 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
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