STP的配置

按图进行.VTP、STP的配置（12分）废话真多。。。


实验步骤按照顺序来
[b]1.SWA[/b]配置
[b]SWA#conf t
SWA(config)#int rang f0/1 -
2
SWA(config-if-range)#switchport mode
trunk
SWA(config-if-range)#channel-group 1 mode
on
SWA(config-if-range)#exit
SWA(config)#int
range f0/14 - 15
SWA(config-if-range)#switchport mode
trunk
SWA(config-if-range)#end
SWA#vlan
database
SWA(vlan)#vlan 2
SWA(vlan)#vlan
3
SWA(vlan)#vlan 4
SWA(vlan)#vtp
server
SWA(vlan)#vtp domain
sy
SWA(vlan)#vtp password
cisco
SWA(vlan)#vtp
pruning
SWA(vlan)#exit[/b]
2.SWB配置
SWB#conf
t
[b]SWB(config)#int range f0/1 -
2
SWB(config-if-range)#switchport mode
trunk
SWB(config-if-range)#channel-group 1 mode
on
SWB(config-if-range)#exit
SWB(config)#int
range f0/14 - 15
SWB(config-if-range)#switchport mode
trunk
SWB(config-if-range)#end
SWB#vlan
database
SWB(vlan)#vtp
server
SWB(vlan)#vtp domain
sy
SWB(vlan)#vtp password
cisco
SWB(vlan)#exit[/b]
3.SWC配置
[b]SWC#conf t
SWC(config)#int range f0/14 -
15
SWC(config-if-range)#switchport mode
trunk
SWC(config-if-range)#end
SWC#vlan
database
SWC(vlan)#vtp
client
SWC(vlan)#vtp domain
sy
SWC(vlan)#vtp password
cisco
SWC(vlan)#exit[/b]
SWC#show spanning-tree
Port 15 (FastEthernet0/14) of VLAN1 is
forwarding
Port 16 (FastEthernet0/15) of VLAN1 is blocking
Port 15
(FastEthernet0/14) of VLAN2 is forwarding
Port 16 (FastEthernet0/15) of VLAN2
is blocking
Port 15 (FastEthernet0/14) of VLAN3 is blocking
Port 16
(FastEthernet0/15) of VLAN3 is forwarding
Port 15 (FastEthernet0/14) of VLAN4
is blocking
Port 16 (FastEthernet0/15) of VLAN4 is forwarding
4.SWD配置
SWD#conf
t
[b]SWD(config)#int range f0/14 -
15
SWD(config-if-range)#switchport mode
trunk
SWD(config-if-range)#end
SWD#vlan
database
SWD(vlan)#vtp
client
SWD(vlan)#vtp domain
sy
SWD(vlan)#vtp password
cisco
SWD(vlan)#exit
SWD#show vtp
status[/b]
VTP Version : 2
Configuration
Revision : 2
Maximum VLANs supported locally : 256
Number of
existing VLANs : 9
VTP Operating Mode : Client
VTP Domain Name : sy
VTP Pruning Mode : Enabled
VTP V2 Mode : Disabled
VTP Traps
Generation : Disabled
MD5 digest : 0xF8 0xB6
0x3B 0x3A 0xF4 0xBF 0xD9 0x1E

Configuration last modified by 0.0.0.0 at
3-1-02 00:20:36
SWD#show vlan-sw brief
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
SWD#conf
t
[b]SWD(config)#int
f0/2
SWD(config-if)#switchport access vlan
2
SWD(config-if)#end
SWD#conf
t
SWD(config)#spanning-tree
uplinkfast
SWD(config)#int range f0/1 -
13
SWD(config-if-range)#spanning-tree
portfast
SWD(config-if-range)#end
SWD#show
spanning-tree summary[/b]
UplinkFast is
enabled
SWD#show spanning-tree interface f0/2
The port
is in the portfast mode
SWD#show spanning-tree
Port 15
(FastEthernet0/14) of VLAN1 is blocking
Port 16 (FastEthernet0/15) of VLAN1
is forwarding
Port 15 (FastEthernet0/14) of VLAN2 is blocking
Port 16
(FastEthernet0/15) of VLAN2 is forwarding
Port 15 (FastEthernet0/14) of VLAN3
is forwarding
Port 16 (FastEthernet0/15) of VLAN3 is blocking
Port 15
(FastEthernet0/14) of VLAN4 is forwarding
Port 16 (FastEthernet0/15) of VLAN4
is blocking
5.SWC配置
SWC#conf
t
[b]SWC(config)#int
f0/2
SWC(config-if)#switchport access vlan
2
SWC(config-if)#end
SWC#conf
t
SWC(config)#spanning-tree uplinkfast

SWC(config)#int range f0/1 -
13
SWC(config-if-range)#spanning-tree
portfast[/b]
SWC#show spanning-tree summary

UplinkFast is enabled
SWC#show spanning-tree interface fastEthernet
0/2 The port is in the portfast
mode
6.SWB配置
SWB#conf
t
[b]SWB(config)#spanning-tree vlan 3 root
primary
SWB(config)#spanning-tree vlan 4 root
primary
SWB(config)#end
SWB#show
spanning-tree summary
[/b]Root bridge for: VLAN3,
VLAN4.
7.SWA配置
[b]SWA#conf t
SWA(config)#spanning-tree vlan 2
root primary
SWA(config)#spanning-tree vlan 1 root
primary
SWA(config)#end
SWA#show
spanning-tree summary[/b]
Root bridge for: VLAN1, VLAN2.
8.客户机配置
HostA(VLAN2):
IP:192.168.1.2/24
HostB(VLAN2):
ip:192.168.1.3/24
9.测试:
HostA#ping
192.168.1.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to
192.168.1.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent
(5/5), round-trip min/avg/max = 68/127/144 ms