CISCO 单臂路由
CISCO 单臂路由、VTP、STP的配置实验
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：
1、在路由器上配置子接口，并封装802.1Q。
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
Router(config-subif)#no sh
Router(config-subif)#end
%SYS-5-CONFIG_I: Configured from console by console
Router#wr
Building configuration...
[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
VLAN 10 added:
Name: VLAN0010
Switch(vlan)#vlan 20
VLAN 20 added:
Name: VLAN0020
Switch(vlan)#exi
APPL Y completed.
Exiting....
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
Building configuration...
[OK]
3、交换机switch2上配置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
Setting device VLAN database password to 123
Switch(vlan)#exit
APPL Y completed.
Exiting....
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
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
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
Switch#
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#spanning-tree vlan 10 priority 4096
Switch(config)#spanning-tree vlan 20 priority 8192
Switch(config)#exi
%SYS-5-CONFIG_I: Configured from console by console
Switch#sh spanning-tree
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32769
Address 000A.41D4.1821
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 00D0.97D7.6CCA
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/2 Root FWD 19 128.2 P2p
VLAN0010
Spanning tree enabled protocol ieee
Root ID Priority 4106
Address 00D0.97D7.6CCA
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 4106 (priority 4096 sys-id-ext 10)
Address 00D0.97D7.6CCA
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/1 Desg FWD 19 128.1 P2p
VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 4116
Address 000A.41D4.1821
Cost 19
Port 2(FastEthernet0/2)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8212 (priority 8192 sys-id-ext 20)
Address 00D0.97D7.6CCA
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/3 Desg FWD 19 128.3 P2p
Fa0/2 Root FWD 19 128.2 P2p
Switch(config)#int f0/1
Switch(config-if)#switchport access vlan 10
Switch(config-if)#int range f0/2 - 3
Switch(config-if-range)#switchport mode trunk
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up Switch(config)#end
Switch#
%SYS-5-CONFIG_I: Configured from console by console
wr
Building configuration...
[OK]
4、交换机switch3上配置VTP client，并把相应接口加入VLAN中。配置成VLAN 20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
Setting device VLAN database password to 123
Switch(vlan)#exi
APPL Y completed.
Exiting....
Switch#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/3, 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
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 0 100
2 fddi 101002 1500 - - - - - 0 0 100
3 tr 101003 1500 - - - - - 0 0 100
4 fdnet 101004 1500 - - - ieee - 0 0 100
5 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
Switch#confi t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int f0/1
Switch(config-if)#switchport access vlan 20
Switch(config-if)#int range f0/2 - 4
Switch(config-if-range)#sw
Switch(config-if-range)#switchport mode trunk
Switch(config-if-range)#end
%SYS-5-CONFIG_I: Configured from console by console
Switch#config
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#spanning-tree vlan 20 priority 4096
Switch(config)#exi
%SYS-5-CONFIG_I: Configured from console by console
Switch#sh spanning-tree vlan 20
VLAN0020
Spanning tree enabled protocol ieee
Root ID Priority 4116
Address 000A.41D4.1821
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 4116 (priority 4096 sys-id-ext 20)
Address 000A.41D4.1821
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/4 Desg FWD 19 128.4 P2p
Fa0/1 Desg FWD 19 128.1 P2p
Switch(config)#spanning-tree vlan 10 priority 8192
Switch(config)#exi
%SYS-5-CONFIG_I: Configured from console by console
Switch#sh span
Switch#sh spanning-tree vlan 10
VLAN0010
Spanning tree enabled protocol ieee
Root ID Priority 8202
Address 000A.41D4.1821
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8202 (priority 8192 sys-id-ext 10)
Address 000A.41D4.1821
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 20
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/2 Desg FWD 19 128.2 P2p
Fa0/4 Desg FWD 19 128.4 P2p
Switch#wr
Building configuration...
[OK]
5、给PC配置IP并用PING检测
PC>ping 192.168.1.2
Pinging 192.168.1.2 with 32 bytes of data:
Request timed out.
Reply from 192.168.1.2: bytes=32 time=172ms TTL=127
Reply from 192.168.1.2: bytes=32 time=187ms TTL=127
Reply from 192.168.1.2: bytes=32 time=187ms TTL=127
Ping statistics for 192.168.1.2:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 172ms, Maximum = 187ms, Average = 182ms