vlan 划分试验

vlan 试验





今天，我们做一个关于交换的试验。非常简单，VLAN的划分。虽然很简单，但是它反应了valn的划分，很有针对性。我们不去划那些一个试验都可以包含NA或NP甚至部分IE的试验，那样的拓扑图一看头都大了…… 我没有贬低那些拓扑意思，只是说那样的拓扑还不适合我们这些初学者。

我们的试验环境是DynamipsGUI v2.7和SecureCRT 5.1，另加两台PC(一台是我的本机(PC2)，另一台是Vmware虚拟机)（PC1）)。废话就不多说了，来看我们的拓扑图做试验吧！！

我们在SW1上划分两个vlan分别把PC1 和PC2划分给这两个vlan 。然后再测试PC1 与PC2的连通性。

我们首先为PC1和PC2配置IP地址：
PC1—IP:192.168.0.103/24
PC2—IP:192.168.0.109/24
现在我们已经启动了交换机，启动SecureCRT 5.1进入交换机的配置模式。
启动F0/0端口
SW1(config)#interface fastEthernet 0/0
SW1(config-if)#no shutdown
SW1(config-if)#exit
SW1(config)#end
SW1#show interfaces fastEthernet 0/0
FastEthernet0/0 is up, line protocol is up
启动F0/10端口
SW1(config)#interface fastEthernet 0/10
SW1(config-if)#no shutdown
SW1(config-if)#exit
SW1(config)#end
SW1#show interfaces fastEthernet 0/10
FastEthernet0/10 is up, line protocol is up

现在PC1和PC2相互是通ping通的。下面就要划分两个VLAN，把两台PC分别加入两个VLAN后就不能 ping通了。
SW1#vlan database
SW1(vlan)#vlan 10 name pc1
VLAN 10 added:
Name: pc1
SW1(vlan)#vlan 20 name pc2
VLAN 20 added:
Name: pc2
SW1(vlan)#exit
APPLY completed.
Exiting....
SW1#show vlan-switch
VLAN Name Status Ports
10 pc1 active
20 pc2 active

已经设置好了两个VLAN并确认了它的状态。然后我们就把两个端口分别加入这两个VLAN。
F0/0端口加入vlan10中
SW1(config)#interface fastEthernet 0/0
SW1(config-if)#switch access vlan 10
F0/10端口加入vlan20中
SW1(config)#interface fastEthernet 0/10
SW1(config-if)#switch access vlan 20
确认加入状态：
VLAN Name Status Ports
10 pc1 active Fa0/0
20 pc2 active Fa0/10

至此试验做完了。我们再用两台PC相互ping是不会通的了。

完整的代码：
代码开始：
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname SW1
SW1(config)#interface fastEthernet 0/0
SW1(config-if)#no shutdown
SW1(config-if)#exit
SW1(config)#interface fastEthernet 0/10
SW1(config-if)#no shutdown
SW1(config-if)#exit
SW1(config)#end
SW1#
*Mar 1 00:01:58.119: %SYS-5-CONFIG_I: Configured from console by console
SW1#show interfaces fastEthernet 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Fast Ethernet, address is cc00.0fac.f000 (bia cc00.0fac.f000)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
SW1#show interfaces fastEthernet 0/10
FastEthernet0/10 is up, line protocol is up
Hardware is Fast Ethernet, address is cc00.0fac.f00a (bia cc00.0fac.f00a)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
SW1#
SW1#vlan ?
database Configure VLAN database

SW1#vlan database
SW1(vlan)#vlan 10 name pc1
VLAN 10 added:
Name: pc1
SW1(vlan)#vlan 20 name pc2
VLAN 20 added:
Name: pc2
SW1(vlan)#exit
APPLY completed.
Exiting....
SW1#show vlan-switch

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, Fa0/15
Fa1/0, Fa1/1, Fa1/2, Fa1/3
Fa1/4, Fa1/5, Fa1/6, Fa1/7
Fa1/8, Fa1/9, Fa1/10, Fa1/11
Fa1/12, Fa1/13, Fa1/14, Fa1/15
10 pc1 active
20 pc2 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
10 enet 100010 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1002 fddi 101002 1500 - - - - - 1 1003
1003 tr 101003 1500 1005 0 - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 ibm - 0 0
SW1#config t
Enter configuration commands, one per line. End with CNTL/Z.
SW1(config)#interface fastEthernet 0/0
SW1(config-if)#switch access vlan 10
SW1(config-if)#exit
SW1(config)#interface fastEthernet 0/10
SW1(config-if)#switch access vlan 20
SW1(config-if)#exit
SW1(config)#
*Mar 1 00:05:37.355: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
SW1(config)#end
SW1#
*Mar 1 00:05:41.287: %SYS-5-CONFIG_I: Configured from console by console
SW1#show vlan-switch

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/11, Fa0/12, Fa0/13
Fa0/14, Fa0/15, Fa1/0, Fa1/1
Fa1/2, Fa1/3, Fa1/4, Fa1/5
Fa1/6, Fa1/7, Fa1/8, Fa1/9
Fa1/10, Fa1/11, Fa1/12, Fa1/13
Fa1/14, Fa1/15
10 pc1 active Fa0/0
20 pc2 active Fa0/10
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
10 enet 100010 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
--More--

代码结束