飞鸟星空&Asuka Starry sky

实验环境

    按下图连接网络，链路均为100M链路，其中交换机设备都为默认配置。

需求描述

    要求配置交换机，实现SW1成为VLAN1-2的根网桥，SW2成为VLAN3－4的根网桥，实现VLAN的负载均衡。

具体配置

SW1上的配置

Router>en    进入特权模式

Router#conf t   进入全局模式

Router(config)#ho sw1   更改设备名称

sw1(config)#no ip do lo   关闭域名解析

sw1(config)#lin 0       进入控制台

sw1(config-line)#no exec-t    关闭超时

sw1(config-line)#logg s    关闭日志同步

sw1(config-line)#int ran f0/13 -15     进入F0/13至F0/15接口

sw1(config-if-range)#sw mode trun    配置成TRUNK

sw1(config-if-range)#end     返回特权模式

sw1#vlan da    进入VLAN配置模式

sw1(vlan)#vtp domain feiniao   配置VTP域名

sw1(vlan)#vlan 2    添加VLAN2

VLAN 2 added:

    Name: VLAN0002

sw1(vlan)#vlan 3    添加VLAN3

VLAN 3 added:

    Name: VLAN0003

sw1(vlan)#vlan 4    添加VLAN4

VLAN 4 added:

    Name: VLAN0004

sw1(vlan)#exit     保存并退出

APPLY completed.

Exiting....

sw1#conf t     进入全局模式

sw1(config)#spanning-tree vlan 1 pri 4096    更改VLAN1的优先级

sw1(config)#spanning-tree vlan 2 pri 4096    更改VLAN2的优先级

sw1(config)#spanning-tree vlan 3 pri 8192    更改VLAN3的优先级

sw1(config)#spanning-tree vlan 4 pri 8192    更改VLAN4的优先级

sw1(config)#end     返回特权模式

SW2上的配置

Router>en    进入特权模式

Router#conf t    进入全局模式

Router(config)#ho sw2    更改设备名称

sw2(config)#no ip do lo   关闭域名解析

sw2(config)#lin 0    进入控制台

sw2(config-line)#no exec-t    关闭超时

sw2(config-line)#logg s    关闭日志同步

sw2(config-line)#int ran f0/13 -15    进入F0/13至F0/15

sw2(config-if-range)#sw mode trun   配置成TRUNK

sw2(config-if-range)#end   返回特权模式

sw2#show vlan-s b    查看VLAN信息

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/0, Fa0/1, Fa0/2, Fa0/3

                                                Fa0/4, Fa0/5, Fa0/6, Fa0/7

                                                Fa0/8, Fa0/9, Fa0/10, Fa0/11

                                                Fa0/12

2    VLAN0002                         active   

3    VLAN0003                         active   

4    VLAN0004                         active   

1002 fddi-default                     active   

1003 token-ring-default               active   

1004 fddinet-default                  active   

1005 trnet-default                    active   

sw2#conf t   进入全局模式模式

sw2(config)#spanning-tree vlan 1 pri 8192    更改VLAN1优先级

sw2(config)#spanning-tree vlan 2 pri 8192    更改VLAN2优先级

sw2(config)#spanning-tree vlan 3 pri 4096    更改VLAN3优先级

sw2(config)#spanning-tree vlan 4 pri 4096    更改VLAN4优先级

sw2(config)#end   返回特权模式

SW3上的配置

Router>en   进入特权模式

Router#conf t   进入全局模式

Router(config)#ho sw3   更改设备名称

sw3(config)#no ip do lo   关闭域名解析

sw3(config)#lin 0   进入控制台

sw3(config-line)#no exec-t    关闭超时

sw3(config-line)#logg s    关闭日志同步

sw3(config-line)#int ran f0/14 -15   进入F0/14至F0/15接口

sw3(config-if-range)#sw mode trun   配置成TRUNK

sw3(config-if-range)#end   返回特权模式

sw3#show vlan-s b   查看VLAN信息

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/0, Fa0/1, Fa0/2, Fa0/3

                                                Fa0/4, Fa0/5, Fa0/6, Fa0/7

                                                Fa0/8, Fa0/9, Fa0/10, Fa0/11

                                                Fa0/12, Fa0/13

2    VLAN0002                         active   

3    VLAN0003                         active   

4    VLAN0004                         active   

1002 fddi-default                     active   

1003 token-ring-default               active   

1004 fddinet-default                  active   

1005 trnet-default                    active   

sw3#

SW4上的配置

Router>en    进入特权模式

Router#conf t   进入全局模式

Router(config)#ho sw4     更改设备名称

sw4(config)#no ip do lo    关闭域名解析

sw4(config)#lin 0   进入控制台

sw4(config-line)#no exec-t    关闭超时

sw4(config-line)#logg s      关闭日志同步

sw4(config-line)#int ran f0/14 -15    进入F0/14至F0/15接口

sw4(config-if-range)#sw mode trun    配置成中继

sw4(config-if-range)#end    返回特权模式

sw4#show vlan-s b    查看VLAN信息

VLAN Name                             Status    Ports

---- -------------------------------- --------- -------------------------------

1    default                          active    Fa0/0, Fa0/1, Fa0/2, Fa0/3

                                                Fa0/4, Fa0/5, Fa0/6, Fa0/7

                                                Fa0/8, Fa0/9, Fa0/10, Fa0/11

                                                Fa0/12, Fa0/13, Fa0/14

1002 fddi-default                     active   

1003 token-ring-default               active   

1004 fddinet-default                  active   

1005 trnet-default                    active   

sw4#

验证结果

sw1#show spanning-tree brief

VLAN1

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0f90.0000

             This bridge is the root

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    4096

             Address     cc00.0f90.0000

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD     0  4096 cc00.0f90.0000 128.14

FastEthernet0/14     128.15   128    19 FWD     0  4096 cc00.0f90.0000 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0f90.0000 128.16

VLAN2

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0f90.0001

             This bridge is the root

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    4096

             Address     cc00.0f90.0001

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD     0  4096 cc00.0f90.0001 128.14

FastEthernet0/14     128.15   128    19 FWD     0  4096 cc00.0f90.0001 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0f90.0001 128.16

VLAN3

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0630.0002

             Cost        19

             Port        16 (FastEthernet0/15)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    8192

             Address     cc00.0f90.0002

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD    19  8192 cc00.0f90.0002 128.14

FastEthernet0/14     128.15   128    19 FWD    19  8192 cc00.0f90.0002 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0630.0002 128.16

VLAN4

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0630.0003

             Cost        19

             Port        16 (FastEthernet0/15)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    8192

             Address     cc00.0f90.0003

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD    19  8192 cc00.0f90.0003 128.14

FastEthernet0/14     128.15   128    19 FWD    19  8192 cc00.0f90.0003 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0630.0003 128.16

sw1#

sw2#show spanning-tree brief

VLAN1

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0f90.0000

             Cost        19

             Port        16 (FastEthernet0/15)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    8192

             Address     cc00.0630.0000

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD    19  8192 cc00.0630.0000 128.14

FastEthernet0/14     128.15   128    19 FWD    19  8192 cc00.0630.0000 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0f90.0000 128.16

VLAN2

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0f90.0001

             Cost        19

             Port        16 (FastEthernet0/15)

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    8192

             Address     cc00.0630.0001

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD    19  8192 cc00.0630.0001 128.14

FastEthernet0/14     128.15   128    19 FWD    19  8192 cc00.0630.0001 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0f90.0001 128.16

VLAN3

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0630.0002

             This bridge is the root

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    4096

             Address     cc00.0630.0002

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD     0  4096 cc00.0630.0002 128.14

FastEthernet0/14     128.15   128    19 FWD     0  4096 cc00.0630.0002 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0630.0002 128.16

VLAN4

  Spanning tree enabled protocol ieee

  Root ID    Priority    4096

             Address     cc00.0630.0003

             This bridge is the root

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    4096

             Address     cc00.0630.0003

             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

             Aging Time 300

Interface                                   Designated

Name                 Port ID Prio Cost  Sts Cost  Bridge ID            Port ID

-------------------- ------- ---- ----- --- ----- -------------------- -------

FastEthernet0/13     128.14   128    19 FWD     0  4096 cc00.0630.0003 128.14

FastEthernet0/14     128.15   128    19 FWD     0  4096 cc00.0630.0003 128.15

FastEthernet0/15     128.16   128    19 FWD     0  4096 cc00.0630.0003 128.16

sw2#