Vlan的划分;配置trunk中继链路;以太通道配置;DHCP服务配置
1:Vlan的划分
1.1 问题
VLAN(虚拟局域网)是对连接到的第二层交换机端口的网络用户的逻辑分段,不受网络用户的物理位置限制而根据用户需求进行网络分段。一个VLAN可以在一个交换机或者跨交换机实现。VLAN可以根据网络用户的位置、作用、部门或者根据网络用户所使用的应用程序和协议来进行分组。基于交换机的虚拟局域网能够为局域网解决冲突域、广播域、带宽问题。
- 按企业部门规划vlan
1.2 方案
在交换机上创建vlan2、vlan3,参照如下网络拓扑如图-1所示:
图-1
1.3 步骤
实现此案例需要按照如下步骤进行。
步骤一:客户端与交换机相连
1)为了使同vlan在交换机上可以通信,需要给同vlan客户端配置同网段IP地址,如图-2、图-3所示
图-2
图-3
分别配置为192.168.1.1、192.169.1.2;192.168.2.1、192.168.2.2;192.168.3.1、192.168.3.2;
2)在交换机上创建vlan2 和vlan3并将指定的接口划分到相对应的vlan下
copytextpop-up
- Switch >enable
- Switch#configure terminal
- Switch(config)#vlan 2
- Switch(config-vlan)#exit
- Switch(config)#vlan 3
- Switch(config-vlan)#exit
- Switch(config)#interface fastEthernet 0/3
- Switch(config-if)#switchport access vlan 2
- Switch(config-if)#exit
- Switch(config)#interface fastEthernet 0/4
- Switch(config-if)#switchport access vlan 2
- Switch(config-if)#exit
- Switch(config)#interface fastEthernet 0/5
- Switch(config-if)#switchport access vlan 3
- Switch(config-if)#exit
- Switch(config)#interface fastEthernet 0/6
- Switch(config-if)#switchport access vlan 3
Switch >enable
Switch#configure terminal
Switch(config)#vlan 2
Switch(config-vlan)#exit
Switch(config)#vlan 3
Switch(config-vlan)#exit
Switch(config)#interface fastEthernet 0/3
Switch(config-if)#switchport access vlan 2
Switch(config-if)#exit
Switch(config)#interface fastEthernet 0/4
Switch(config-if)#switchport access vlan 2
Switch(config-if)#exit
Switch(config)#interface fastEthernet 0/5
Switch(config-if)#switchport access vlan 3
Switch(config-if)#exit
Switch(config)#interface fastEthernet 0/6
Switch(config-if)#switchport access vlan 3
3)在交换机上查看vlan信息,可以看到创建的vlan以及vlan下的接口
copytextpop-up
- Switch>enable
- Switch#show vlan
- VLAN Name Status Ports
- ----------------------------------------------------------------------------
- 1defaultactive Fa0/1, Fa0/2, 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
- 2VLAN0002 active Fa0/3, Fa0/4
- 3VLAN0003 active Fa0/5, Fa0/6
- 1002fddi-default act/unsup
- 1003token-ring-default act/unsup
- 1004fddinet-default act/unsup
- 1005trnet-default act/unsup
- VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
- --------------------------------------------------------------------
- 1enet 100001 1500 - - - - - 0 0
- 2enet 100002 1500 - - - - - 0 0
- 3enet 100003 1500 - - - - - 0 0
- 1002fddi 101002 1500 - - - - - 0 0
- 1003tr 101003 1500 - - - - - 0 0
- 1004fdnet 101004 1500 - - - ieee - 0 0
- 1005trnet 101005 1500 - - - ibm - 0 0
- Remote SPAN VLANs
- ------------------------------------------------------------------------------
- Primary Secondary Type Ports
- ---------------------------------------------------------------------------
Switch>enable
Switch#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, 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
2 VLAN0002 active Fa0/3, Fa0/4
3 VLAN0003 active Fa0/5, Fa0/6
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
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 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
------- --------- ----------------- ------------------------------------------
4)在客户端测试网络的连通性
在192.168.1.0/24的客户机上测试1.0网段的连通性
copytextpop-up
- PC1>ping 192.168.1.2
- Pinging 192.168.1.2 with 32 bytes of data:
- Reply from 192.168.1.2: bytes=32 time=11ms TTL=128
- Reply from 192.168.1.2: bytes=32 time=1ms TTL=128
- Reply from 192.168.1.2: bytes=32 time=1ms TTL=128
- Reply from 192.168.1.2: bytes=32 time=4ms TTL=128
- Ping statistics for 192.168.1.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 1ms, Maximum = 11ms, Average = 4ms
PC1>ping 192.168.1.2
Pinging 192.168.1.2 with 32 bytes of data:
Reply from 192.168.1.2: bytes=32 time=11ms TTL=128
Reply from 192.168.1.2: bytes=32 time=1ms TTL=128
Reply from 192.168.1.2: bytes=32 time=1ms TTL=128
Reply from 192.168.1.2: bytes=32 time=4ms TTL=128
Ping statistics for 192.168.1.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 11ms, Average = 4ms
5)在192.168.2.0/24的客户机上测试2.0网段的连通性
copytextpop-up
- PC>ping 192.168.2.2
- Pinging 192.168.2.2 with 32 bytes of data:
- Reply from 192.168.2.2: bytes=32 time=1ms TTL=128
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
- Ping statistics for 192.168.2.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
PC>ping 192.168.2.2
Pinging 192.168.2.2 with 32 bytes of data:
Reply from 192.168.2.2: bytes=32 time=1ms TTL=128
Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
Reply from 192.168.2.2: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.2.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
6)在192.168.3.0/24的客户机上测试3.0网段的连通性
copytextpop-up
- PC>ping 192.168.3.2
- Pinging 192.168.3.2 with 32 bytes of data:
- Reply from 192.168.3.2: bytes=32 time=1ms TTL=128
- Reply from 192.168.3.2: bytes=32 time=0ms TTL=128
- Reply from 192.168.3.2: bytes=32 time=0ms TTL=128
- Reply from 192.168.3.2: bytes=32 time=1ms TTL=128
- Ping statistics for 192.168.3.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
PC>ping 192.168.3.2
Pinging 192.168.3.2 with 32 bytes of data:
Reply from 192.168.3.2: bytes=32 time=1ms TTL=128
Reply from 192.168.3.2: bytes=32 time=0ms TTL=128
Reply from 192.168.3.2: bytes=32 time=0ms TTL=128
Reply from 192.168.3.2: bytes=32 time=1ms TTL=128
Ping statistics for 192.168.3.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
2 案例2:配置trunk中继链路
2.1 问题
在两台交换机上分别创建vlan2、vlan3,参照如下网络拓扑图-4将端口加入到指定的vlan并配置IP址,实现跨交换机的同vlan主机的通信。
图-4
2.2 方案
分别在sw1和sw2上创建vlan2和vlan3并把相应的接口划分到对应的vlan并为客户端配置IP地址,IP地址具有唯一性所以同一局域网络中不能存在相同的IP,另所有的接口默认为vlan1,所以不配置trunk中继链路vlan1也是可以跨交换机通信的。
2.3 步骤
实现此案例需要按照如下步骤进行
步骤一:为客户端配置IP,分别为交换机sw1和sw2创建vlan并把相应的接口划到相对应的vlan下
1)参照图-4为客户端分别配置相对应网段的IP
2)为交换机创建vlan2、vlan3 并把相应的接口划到vlan下
copytextpop-up
- Switch >enable
- Switch#configure terminal
- Switch(config)#hostname SW1
- SW1(config)#Switch(config-vlan)#exit
- SW1(config)#vlan 3
- SW1(config-vlan)#exit
- SW1(config)#interface fastEthernet 0/3
- SW1(config-if)#switchport access vlan 2
- SW1(config-if)#exit
- SW1(config)#interface fastEthernet 0/4
- SW1(config-if)#switchport access vlan 2
- SW1(config-if)#exit
- SW1(config)#interface fastEthernet 0/5
- SW1(config-if)#switchport access vlan 3
- SW1(config-if)#exit
- SW1(config)#interface fastEthernet 0/6
- SW1(config-if)#switchport access vlan 3
- Switch >enable
- Switch#configure terminal
- Enter configuration commands, one per line. End with CNTL/Z.
- Switch(config)#hostname SW2
- SW2(config)#Switch(config-vlan)#exit
- SW2(config)#vlan 3
- SW2(config-vlan)#exit
- SW2(config)#interface fastEthernet 0/3
- SW2(config-if)#switchport access vlan 2
- SW2(config-if)#exit
- SW2(config)#interface fastEthernet 0/4
- SW2(config-if)#switchport access vlan 2
- SW2(config-if)#exit
- SW2(config)#interface fastEthernet 0/5
- SW2(config-if)#switchport access vlan 3
- SW2(config-if)#exit
- SW2(config)#interface fastEthernet 0/6
- SW2(config-if)#switchport access vlan 3
Switch >enable
Switch#configure terminal
Switch(config)#hostname SW1
SW1 (config)#Switch(config-vlan)#exit
SW1 (config)#vlan 3
SW1 (config-vlan)#exit
SW1 (config)#interface fastEthernet 0/3
SW1 (config-if)#switchport access vlan 2
SW1 (config-if)#exit
SW1 (config)#interface fastEthernet 0/4
SW1 (config-if)#switchport access vlan 2
SW1 (config-if)#exit
SW1 (config)#interface fastEthernet 0/5
SW1 (config-if)#switchport access vlan 3
SW1 (config-if)#exit
SW1 (config)#interface fastEthernet 0/6
SW1 (config-if)#switchport access vlan 3
Switch >enable
Switch#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname SW2
SW2 (config)#Switch(config-vlan)#exit
SW2 (config)#vlan 3
SW2 (config-vlan)#exit
SW2 (config)#interface fastEthernet 0/3
SW2(config-if)#switchport access vlan 2
SW2 (config-if)#exit
SW2 (config)#interface fastEthernet 0/4
SW2 (config-if)#switchport access vlan 2
SW2 (config-if)#exit
SW2 (config)#interface fastEthernet 0/5
SW2 (config-if)#switchport access vlan 3
SW2 (config-if)#exit
SW2 (config)#interface fastEthernet 0/6
SW2 (config-if)#switchport access vlan 3
3)分别查看SW1和SW2交换机上的vlan信息
copytextpop-up
- SW1#show vlan
- VLAN Name Status Ports
- ----------------------------------------------------------------------------
- 1defaultactive Fa0/1, Fa0/2, 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
- 2VLAN0002 active Fa0/3, Fa0/4
- 3VLAN0003 active Fa0/5, Fa0/6
- 1002fddi-default act/unsup
- 1003token-ring-default act/unsup
- 1004fddinet-default act/unsup
- 1005trnet-default act/unsup
- VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
- --------------------------------------------------------------------
- 1enet 100001 1500 - - - - - 0 0
- 2enet 100002 1500 - - - - - 0 0
- 3enet 100003 1500 - - - - - 0 0
- 1002fddi 101002 1500 - - - - - 0 0
- 1003tr 101003 1500 - - - - - 0 0
- 1004fdnet 101004 1500 - - - ieee - 0 0
- 1005trnet 101005 1500 - - - ibm - 0 0
- Remote SPAN VLANs
- ------------------------------------------------------------------------------
- Primary Secondary Type Ports
- ---------------------------------------------------------------------------
- SW1#
- SW2#show vlan
- VLAN Name Status Ports
- ----------------------------------------------------------------------------
- 1defaultactive Fa0/1, Fa0/2, 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
- 2VLAN0002 active Fa0/3, Fa0/4
- 3VLAN0003 active Fa0/5, Fa0/6
- 1002fddi-default act/unsup
- 1003token-ring-default act/unsup
- 1004fddinet-default act/unsup
- 1005trnet-default act/unsup
- VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
- --------------------------------------------------------------------
- 1enet 100001 1500 - - - - - 0 0
- 2enet 100002 1500 - - - - - 0 0
- 3enet 100003 1500 - - - - - 0 0
- 1002fddi 101002 1500 - - - - - 0 0
- 1003tr 101003 1500 - - - - - 0 0
- 1004fdnet 101004 1500 - - - ieee - 0 0
- 1005trnet 101005 1500 - - - ibm - 0 0
- Remote SPAN VLANs
- ------------------------------------------------------------------------------
- Primary Secondary Type Ports
- ---------------------------------------------------------------------------
- SW2#
SW1#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, 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
2 VLAN0002 active Fa0/3, Fa0/4
3 VLAN0003 active Fa0/5, Fa0/6
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
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 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
------- --------- ----------------- ------------------------------------------
SW1#
SW2#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, 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
2 VLAN0002 active Fa0/3, Fa0/4
3 VLAN0003 active Fa0/5, Fa0/6
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
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 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
------- --------- ----------------- ------------------------------------------
SW2#
步骤二:为交换机配置trunk中继链接路
1)分别进入两台交换机相连接的f0/7接口配置trunk中继链路
copytextpop-up
- SW1>enable
- SW1#configure terminal
- SW1(config)#interface fastEthernet 0/7
- SW1(config-if)#switchport mode trunk
- SW2#enable
- SW2#configure terminal
- SW2(config)#interface fastEthernet 0/7
- SW2(config-if)#switchport mode trunk
- SW2(config-if)#
SW1>enable
SW1#configure terminal
SW1(config)#interface fastEthernet 0/7
SW1(config-if)#switchport mode trunk
SW2#enable
SW2#configure terminal
SW2(config)#interface fastEthernet 0/7
SW2(config-if)#switchport mode trunk
SW2(config-if)#
2)测试2.0网段和3.0网段跨交换机通信
copytextpop-up
- PC>ping 192.168.2.3
- Pinging 192.168.2.3 with 32 bytes of data:
- Reply from 192.168.2.3: bytes=32 time=1ms TTL=128
- Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
- Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
- Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
- Ping statistics for 192.168.2.3:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
- PC>ping 192.168.3.3
- Pinging 192.168.3.3 with 32 bytes of data:
- Reply from 192.168.3.3: bytes=32 time=1ms TTL=128
- Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
- Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
- Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
- Ping statistics for 192.168.3.3:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
PC>ping 192.168.2.3
Pinging 192.168.2.3 with 32 bytes of data:
Reply from 192.168.2.3: bytes=32 time=1ms TTL=128
Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
Reply from 192.168.2.3: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.2.3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
PC>ping 192.168.3.3
Pinging 192.168.3.3 with 32 bytes of data:
Reply from 192.168.3.3: bytes=32 time=1ms TTL=128
Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
Reply from 192.168.3.3: bytes=32 time=0ms TTL=128
Ping statistics for 192.168.3.3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms
3 案例3:以太通道配置
3.1 问题
企业需要增加带宽和网络可用性,以太通道可以同时满足这两个条件,而又无需购买新设备。
3.2 方案
在某些环境下,为了在现有条件下增加带宽而不增加额外的设备,以太通道是可用技术之一。以太通道为交换机提供了端口捆绑的技术,允许两个交换机之间通过两个或多个端口并行连接,同时传输数据,以提供更高的带宽。
企业网络模拟拓扑环境如图-5所示:
图-5
3.3 步骤
实现此案例需要按照如下步骤进行。
步骤一:在交换机A上分别配置以太通道
太通道的配置模式与Trunk类似,也有开启、企望等。同样的,在生产环境下都是强制设置以太通道处于on的状态,而不是让它们自动协商。
copytextpop-up
- sw1(config)# interface range fastEthernet 0/7 – 9
- Switch(config-if-range)#switchport mode trunk
- sw1(config-if-range)#channel-group 1 mode on
- sw1(config-if-range)#
sw1(config)# interface range fastEthernet 0/7 – 9
Switch(config-if-range)#switchport mode trunk
sw1(config-if-range)#channel-group 1 mode on
sw1(config-if-range)#
步骤二:在交换机B上分别配置以太通道
copytextpop-up
- sw2(config)# interface range fastEthernet 0/7 – 9
- Switch(config-if-range)#switchport mode trunk
- sw2(config-if-range)#channel-group 1 mode on
- sw2(config-if-range)#
sw2(config)# interface range fastEthernet 0/7 – 9
Switch(config-if-range)#switchport mode trunk
sw2(config-if-range)#channel-group 1 mode on
sw2(config-if-range)#
步骤三:在交换机A上查看以太通通道配置
copytextpop-up
- sw1# show etherchannel 1 summary
- Flags: D - down P - in port-channel
- I - stand-alone s - suspended
- H - Hot-standby (LACP only)
- R - Layer3 S - Layer2
- U - in use f - failed to allocate aggregator
- u - unsuitable for bundling
- w - waiting to be aggregated
- d - default port
- Numberof channel-groups in use: 1
- Numberof aggregators: 1
- Group Port-channel Protocol Ports
- ------+-------------+-----------+---------------------------------
- 1Po1(SU) - Fa0/7(P) Fa0/8(P) Fa0/9(P)
sw1# show etherchannel 1 summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+---------------------------------
1 Po1(SU) - Fa0/7(P) Fa0/8(P) Fa0/9(P)
根据输出最后一行小括号中的提示,可以获知以太通道是二层的(S)、正在被使用的(U),端口Fa0/7、Fa0/8和Fa09在以太通道中(P)。
步骤四:创建以太通道后,系统会增加一个名称为Port-channel 1的端口,可以通过show running-config命令查看到其信息
copytextpop-up
- sw2#show running-config
- Building configuration...
- Current configuration : 1308 bytes
- !
- version 12.2
- no service timestamps log datetime msec
- no service timestamps debug datetime msec
- no service password-encryption
- !
- hostname tarena-sw2
- !
- !
- ....
- interfacePort-channel 1 //以太通道信息
- switchport mode trunk
- !
- ....
sw2#show running-config
Building configuration...
Current configuration : 1308 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname tarena-sw2
!
!
.. ..
interface Port-channel 1 //以太通道信息
switchport mode trunk
!
.. ..
4 案例4:DHCP服务配置
4.1 问题
大型企业网络客户机数量较多,客记机IP地址配置如果都为静态配置存在如下问题:
- 增加网络管理员工作量
- 静态手动配置容易输入错误
- 静态手动配置容易冲突
4.2 方案
在路由器上配置DHCP服务为客户端自动分配IP地址如图-6所示:
图-6
- VLAN 1:192.168.1.0/24
- 网关192.168.1.254
- 首选DNS为202.106.0.20
- 预留IP地址打印服务器:192.168.1.1
- 预留IP地址文件服务器:192.168.1.100
4.3 步骤
实现此案例需要按照如下步骤进行。
步骤一:路由器R1配置DHCP服务
1)配置路由器接口IP
copytextpop-up
- R1(config)#interface fastEthernet 0/0
- R1(config-if)#ip address 192.168.1.254 255.255.255.0
- R1(config-if)#no shutdown
R1(config)#interface fastEthernet 0/0
R1(config-if)#ip address 192.168.1.254 255.255.255.0
R1(config-if)#no shutdown
2)DHCP服务配置
copytextpop-up
- R1(config)#ip dhcp pool vlan11)
- R1(dhcp-config)#network 192.168.1.0 255.255.255.0
- R1(dhcp-config)#default-router 192.168.1.254
- R1(dhcp-config)#dns-server 202.106.0.20
- R1(config)#ip dhcp excluded-address 192.168.1.1
- R1(config)#ip dhcp excluded-address 192.168.1.100
R1(config)#ip dhcp pool vlan11)
R1(dhcp-config)#network 192.168.1.0 255.255.255.0
R1(dhcp-config)#default-router 192.168.1.254
R1(dhcp-config)#dns-server 202.106.0.20
R1(config)#ip dhcp excluded-address 192.168.1.1
R1(config)#ip dhcp excluded-address 192.168.1.100
3)设置主机A的IP配置为自动获取如图-7所示:
图-7
Vlan的划分;配置trunk中继链路;以太通道配置;DHCP服务配置相关推荐
- 【H3C V7路由器实战视频课程系列-3】DHCP服务配置与管理-王达-专题视频课程
[H3C V7路由器实战视频课程系列-3]DHCP服务配置与管理-428人已学习 课程介绍 本课程系统.深入地介绍了H3C V7版本中DHCP服务器.DHCP中继.DHCP Snoop ...
- DHCP服务配置-Cisco模拟器
DHCP服务配置(Cisco模拟器) 方法一. 利用三层交换机配置DHCP服务 1.拓扑图规划 2. 配置二层交换机vlan 3. 配置三层交换机vlan 4. 配置DHCP服务 5. 测试 方法二. ...
- 【树莓派】服务配置相关3:基于Ubuntu Server的服务配置
该文接续之前写过的两篇: [树莓派]服务配置相关 [树莓派]服务配置相关2:基于RPi Desktop的服务配置 这是我个人用来进行树莓派盒子安装配置的脚本,对于外部其他博友,可以部分参考,但不需要逐 ...
- vlan trunk中继链路(讲解+配置)
目录 简介+作用: 配置一: 配置二: 简介+作用: vlan隔离了广播域,所以交换机之间不能相互通信,为了处于不同交换机上的相同VLAN之间能够相互通信,因此我们使用中继(VLAN TRUNK)链路 ...
- 思科交换机 DHCP 服务配置
说明:有 3 个 VLAN,VLAN2 与 VLAN3 是用户 VLAN,而 VLAN 88 则是 DHCP 服务器的 VLAN,在实验演示一中,DHCP 服务器不会使用,因为实验一是演示的,部署在交 ...
- Android DHCP服务配置
在android 10后,dhcp服务提供两种配置 1.想要使用dnsmasq作为dhcp服务,需要配置如下 frameworks/base/packages/Tethering/res/values ...
- 基于Windows server 2003的DHCP服务配置
实验环境:虚拟机VMWare.Windows server 2003.win7或xp系统 实验步骤: 首先我们需要关闭虚拟机的本地DHCP服务器,这样做使客户机不受本地DHCP服务器的干扰,可以直接从 ...
- trunk中继链路,以太网通道
实验目的:通过划分VLAN从逻辑上将一个网络划分成若干小的虚拟局域网,并在交换机之间做以太网通道让其负载均衡,带宽提高. C1可以和C3实现互通其他则不能,C2和C4实现互通其他则不能 1.配置SW1 ...
- 实验二 配置Trunk和链路汇聚
目录 一.实验内容 二.实验环境 三.实验步骤 一.实验内容 按照拓扑图规划好网络.
- 华为设备如何将接口配置为中继模式_华为eNSP——DHCP中继配置
实验拓扑图 实验环境 R4作为DHCP服务器,R1,R2上做中继服务,实现不同网段的pc获取地址 1,配置sw交换机 sys ##进入系统视图模式 [Huawei]sysname SW1 ##修改名字 ...
最新文章
- Flutter 项目开发指导 从基础入门到精通使用目录
- JS-DOM-节点-获取元素-文档结构-元素的属性
- 移除Kubeadm部署的kubernetes环境
- android4.2.2飞歌导航,智能车机新典范 飞歌G6S荣耀版导航鉴赏
- windows7 内部版本7601 此windows副本不是正版 ---解决方案
- 玩客云安装linux系统的好处,玩客云armbian安装aria2+ariaNG过程记录
- 简易猜数1~100数字小游戏ovo
- 歪解单片机的时钟系统--关于内外时钟切换及时钟超频测试
- md5碰撞Java_2 MD5加密 java实现
- TIA博途中触摸屏仿真时画面字体变大,超出范围的处理方法
- OS20190301
- 严格模式和标准模式的区别(附严格模式实战实例)
- 面向自动驾驶的高精地图及数据采集生产体系
- 【游戏介绍】aiwi体感游戏滑雪
- php跨域解决办法,PHP跨域问题解决方案
- 中国省份城市json数据
- 简单到令人发指的插画制作方法
- Windows电脑SMB共享设置方法
- 安卓反编译就这么简单
- 深度学习玩LOL-游戏助手-概述
热门文章
- spring boot-Soap协议客户端集成(根据WSDL文档调用WebService、maven的jaxb2插件)
- 使用CAD手机看图软件打开图纸压缩包的方法技巧
- 常微分方程在计算机的应用,简述计算机数学软件在常微分方程中的应用
- 高通骁龙200、400、600、800处理器规格分享
- 闪存类型测试软件,一芯U盘闪存测试工具(DieSorting)
- 冰点还原精灵如何安装
- 电脑安装Chrome OS
- java jdom 类_JDOM 介绍及使用指南
- 白噪声的matlab程序,matlab产生白噪声信号
- revit二次开发创建标高