|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface range {
port-range}
|
进入组配置状态
|
Step 3
|
|
可以使用平时的端口配置命令进行配置
|
Step 4
|
end
|
退回
|
Step 5
|
show interfaces [
interface-id]
|
验证配置
|
Step 6
|
copy running-config startup-config
|
保存
|
|
Switch# configure terminal
Switch(config)# interface range fastethernet0/1 - 5
Switch(config-if-range)# no shutdown
Switch(config-if-range)#
*Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
*Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up
*Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up
*Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/4, changed state to up
*Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up
*Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/05,
changed state to up
*Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed
state to up
*Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed
state to up
Switch# configure terminal
Switch(config)# interface range fastethernet0/1 - 3, gigabitethernet0/1 - 2
Switch(config-if-range)# no shutdown
Switch(config-if-range)#
*Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up
*Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up
*Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up
*Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/ 1,
changed state to up
*Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/ 2,
changed state to up
*Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/ 3,
changed state to up
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态.
|
Step 2
|
interface
interface-id
|
进入端口配置状态.
|
Step 3
|
speed {10 | 100 | 1000 | auto | nonegotiate} |
设置端口速率
注
1000 只工作在千兆口. GBIC模块只工作在1000 Mbps下.
nonegotiate 只能在这些GBIC上用 1000BASE-SX, -LX, and -ZX GBIC.
|
Step 4
|
duplex {auto | full | half} |
设置全双工或半双工.
|
Step 5
|
end
|
退出
|
Step 6
|
show interfaces
interface-id
|
显示有关配置情况
|
Step 7
|
copy running-config startup-config
|
保存
|
Switch# configure terminal
Switch(config)# interface fastethernet0/3
Switch(config-if)# speed 10
Switch(config-if)# duplex half
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置模式
|
Step 2
|
interface
interface-id
|
进入要加入描述的端口
|
Step 3
|
description
string
|
加入描述 (最多240个字符).
|
Step 4
|
end
|
退回.
|
Step 5
|
show interfaces
interface-id
description
or
show running-config
|
验证.
|
Step 6
|
copy running-config startup-config
|
保存
|
|
Use the no description interface configuration command to delete the description.
This example shows how to add a description on Fast Ethernet interface 0/4 and to verify the description:
Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet0/4
Switch(config-if)# description Connects to Marketing
Switch(config-if)# end
Switch# show interfaces fastethernet0/4 description
Interface Status Protocol Description
Fa0/4 up down Connects to Marketing
Show Commands for Interfaces
Command
|
目的
|
show interfaces [
interface-id]
|
显示所有端口或某一端口的状态和配置.
|
show interfaces
interface-id
status [
err-disabled]
|
显示一系列端口的状态或错误-关闭的状态
|
show interfaces [
interface-id]
switchport
|
显示二层端口的状态,可以用来决定此口是否为二层或三层口。
|
show interfaces [
interface-id]
description
|
显示端口描述
|
show running-config interface [
interface-id]
|
显示当前配置中的端口配置情况
|
show version
|
显示软硬件等情况
|
|
Switch# show interfaces status
Port Name Status Vlan Duplex Speed Type
Gi0/1 connected routed a-full a-100 10/100/1000Base
TX
Gi0/2 wce server 20.20.2 disabled routed auto auto 10/100/1000Base TX
Gi0/3 ip wccp web-cache notconnect routed auto auto 10/100/1000Base TX
Gi0/4 notconnect routed auto auto 10/100/1000Base TX
Gi0/5 notconnect routed auto auto 10/100/1000Base TX
Gi0/6 disabled routed auto auto 10/100/1000Base TX
Gi0/7 disabled routed auto auto 10/100/1000Base TX
Gi0/8 disabled routed auto 100 10/100/1000Base TX
Gi0/9 notconnect routed auto auto 10/100/1000Base TX
Gi0/10 notconnect routed auto auto 10/100/1000Base TX
Gi0/11 disabled routed auto auto unknown
Gi0/12 notconnect routed auto auto unknown
Switch# show interfaces fastethernet 0/1 switchport
Name: Fa0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: down
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Protected: false
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Voice VLAN: dot1p (Inactive)
Appliance trust: 5
Switch# show running-config interface fastethernet0/2
Building configuration...
Current configuration : 131 bytes
!
interface FastEthernet0/2
switchport mode access
switchport protected
no ip address
mls qos cos 7
mls qos cos override
end
Clear
命令
|
目的
|
clear counters [
interface-id]
|
清除端口计数器.
|
clear line [number | console 0 | vty number] |
重置异步串口的硬件逻辑
|
|
Note clear counters 命令只清除用show interface所显示的计数,不影响用snmp得到的计数 |
Switch# clear counters fastethernet0/5
Clear "show interface" counters on this interface [confirm] y
Switch#
*Sep 30 08:42:55: %CLEAR-5-COUNTERS: Clear counter on interface FastEthernet0/5
by vty1 (171.69.115.10)
Switch# clear interface fastethernet0/5
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface {vlan vlan-id} | {{fastethernet | gigabitethernet} interface-id} | {port-channel port-channel-number} |
选择要关闭的端口
|
Step 3
|
shutdown
|
关闭
|
Step 4
|
end
|
退出
|
Step 5
|
show running-config
|
验证
|
|
Switch# configure terminal
Switch(config)# interface fastethernet0/5
Switch(config-if)# shutdown
Switch(config-if)#
*Sep 30 08:33:47: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to a
administratively down
Switch# configure terminal
Switch(config)# interface fastethernet0/5
Switch(config-if)# no shutdown
Switch(config-if)#
*Sep 30 08:36:00: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up
VLAN作为逻辑定义的网络示意图
Catalyst 3550交换机支持250个 VLAN,可以分别是VTP client, server, 及 transparent modes. VLAN号可以从1到4094. VLAN号1002到1005保留给令牌环及FDDI VLAN. VTP只能学习到普通范围的VLAN, 即从VLAN到1到1005; VLAN号大于1005属于扩展VLAN,不存在VLAN数据�熘小� 交换机必须配置成VTP透明模式当需要生成VLAN 号从1006到4094.
本交换机支持基于每一VLAN的生成树(PVST),最多支持128个生成树。本交换机支持ISL及IEEE 802.1Q trunk二种封装。
|
注意 不要手工删除
vlan.dat 文件,可能造成VLAN的不完整。 如要删除vlan需要用有关的命令来进行
|
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
vlan
vlan-id
|
输入一个VLAN号, 然后进入vlan配置状态,可以输入一个新的VLAN号或旧的来进行修改。
|
Step 3
|
name
vlan-name
|
(可选)输入一个VLAN名,如果没有配置VLAN名,缺省的名字是VLAN号前面用0填满的4位数,如VLAN0004是VLAN4的缺省名字
|
Step 4
|
mtu
mtu-size
|
(可选) 改变MTU大小
|
Step 5
|
end
|
退出
|
Step 6
|
show vlan {name vlan-name | id vlan-id} |
验证
|
Step 7
|
copy running-config startup config
|
(可选) 保存配置
|
用no vlan name 或 no vlan mtu 退回到缺省的vlan配置状态
Switch# configure terminal
Switch(config)# vlan 20
Switch(config-vlan)# name test20
Switch(config-vlan)# end
|
命令
|
目的
|
Step 1
|
vlan database
|
进入VLAN配置状态
|
Step 2
|
vlan
vlan-id
name
vlan-name
|
加入VLAN号及VLAN名
|
Step 3
|
vlan vlan-id mtu mtu-size |
(可选) 修改MTU大小
|
Step 4
|
exit
|
更新VLAN数据�觳⑼顺�
|
Step 5
|
show vlan {name vlan-name | id vlan-id} |
验证配置
|
Step 6
|
copy running-config startup config
|
保存配置(可选)
|
|
Switch# vlan database
Switch(vlan)# vlan 20 name test20
Switch(vlan)# exit
APPLY completed.
Exiting....
Switch#
|
注意 当删除一个VLAN时,原来属于此VLAN的端口将处于非激活的状态,直到将其分配给某一VLAN。
|
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
no vlan
vlan-id
|
删除某一VLAN.
|
Step 3
|
end
|
退出
|
Step 4
|
show vlan brief
|
验证
|
Step 5
|
copy running-config startup config
|
保存
|
|
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface
interface-id
|
进入要分配的端口
|
Step 3
|
switchport mode access
|
定义二层口
|
Step 4
|
switchport access vlan
vlan-id
|
把端口分配给某一VLAN
|
Step 5
|
end
|
退出
|
Step 6
|
show running-config interface
interface-id
|
验证端口的VLAN号
|
Step 7
|
show interfaces
interface-id
switchport
|
验证端口的管理模式和VLAN情况
|
Step 8
|
copy running-config startup-config
|
保存配置
|
|
使用 default interface interface-id还原到缺省配置状态。
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet0/1
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan 2
Switch(config-if)# end
Switch#
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface
interface-id
|
进入端口配置状态
|
Step 3
|
switchport mode {dynamic {auto | desirable} | trunk} |
配置二层trunk模式。
|
Step 4
|
switchport access vlan
vlan-id
|
(可选) 指定一个缺省VLAN, 如果此端口不再是trunk
|
Step 5
|
switchport trunk native vlan
vlan-id
|
指定802.1Q native VLAN号
|
Step 6
|
end
|
退出
|
Step 7
|
show interfaces
interface-id
switchport
|
显示有关switchport 的配置
|
Step 8
|
show interfaces
interface-id
trunk
|
显示有关trunk的配置
|
Step 9
|
copy running-config startup-config
|
保存配置
|
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet0/4
Switch(config-if)# switchport mode trunk
Switch(config-if)# end
|
Command
|
Purpose
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface
interface-id
|
进入端口配置
|
Step 3
|
switchport mode trunk
|
配置二层口为trunk
|
Step 4
|
switchport trunk allowed vlan {add | all | except | remove} vlan-list |
(可选) 配置trunk允许的VLAN.
使用
add,
all,
except,
remove
关健字
|
Step 5
|
end
|
退出
|
Step 6
|
show interfaces
interface-id
switchport
|
验证VLAN配置情况.
|
Step 7
|
copy running-config startup-config
|
保存配置
|
|
Switch(config)# interface fastethernet0/1
Switch(config-if)# switchport trunk allowed vlan remove 2
Switch(config-if)# end
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入配置状态
|
Step 2
|
interface
interface-id
|
进入配置成802.1qtrunk的端口
|
Step 3
|
switchport trunk native vlan
vlan-id
|
配置native VLAN号
|
Step 4
|
end
|
退出
|
Step 5
|
show interfaces interface-id switchport |
验证native VLAN配置
|
Step 6
|
copy running-config startup-config
|
保存配置
|
|
负载均衡可以使用流量分流到其它平行的trunks上去. 交换机为了避免环路, STP通常是阻断所有端口交换机之间只留一条链路 。使用负载均衡后, 可以把不同VLAN的流量分配到不同的trunk上。
当同一台交换机的二个口形成环路时, STP端口权值用来决定那个口是enable的,那个口是阻断的。 可以通过配置端口权值来决定二对trunk各走那些VLAN, 有较高权值的端口(数字较小的)vlan, 将处于转发状态,同一个VLAN在另一个trunk有较低的权值(数字较大)则将处在阻断状态。 即同一VLAN只在一个trunk上发送接受。
基于端口权值的负载均衡示意图
trunk1将发送和接收VLAN8-10的数据,trunk2将发送和接收VLAN3-6的数据
|
Command
|
Purpose
|
Step 1
|
configure terminal
|
进入Switch
1配置状态
|
Step 2
|
vtp domain
domain-name
|
配置VTP域
|
Step 3
|
vtp server
|
将Switch 1配置成VTP server.
|
Step 4
|
end
|
退出
|
Step 5
|
show vtp status
|
验证VTP的配置
|
Step 6
|
show vlan
|
验证VLAN
|
Step 7
|
configure terminal
|
进入配置状态
|
Step 8
|
interface fastethernet 0/1 |
进入F0/1端口
|
Step 9
|
switchport mode trunk
|
配置成trunk端口
|
Step 10
|
end
|
退出
|
Step 11
|
show interfaces fastethernet0/1 switchport |
验证VLAN配置
|
Step 12
|
|
在switch1上的F0/2上重复7到11步骤
|
Step 13
|
|
在Switch 2的F0/1,F0/2上重复7到11步骤。
|
Step 14
|
show vlan
|
当trunk已经起来,在switch2上验证已经学到相关的vlan配置
|
Step 15
|
configure terminal
|
在Switch 1上进入配置状态
|
Step 16
|
interface fastethernet0/1
|
进入要配置的端口
|
Step 17
|
spanning-tree vlan 8 port-priority 10
|
将端口权值10赋与VLAN 8.
|
Step 18
|
spanning-tree vlan 9 port-priority 10
|
将端口权值10赋与VLAN 9.
|
Step 19
|
spanning-tree vlan 10 port-priority 10
|
将端口权值10赋与VLAN 10.
|
Step 20
|
exit
|
退回.
|
Step 21
|
interface fastethernet0/2
|
进入F0/2
|
Step 22
|
spanning-tree vlan 3 port-priority 10
|
将端口权值10赋与VLAN 3.
|
Step 23
|
spanning-tree vlan 4 port-priority 10
|
将端口权值10赋与VLAN 4.
|
Step 24
|
spanning-tree vlan 5 port-priority 10
|
将端口权值10赋与VLAN 5.
|
Step 25
|
spanning-tree vlan 6 port-priority 10
|
将端口权值10赋与VLAN 10.
|
Step 26
|
end
|
退出
|
Step 27
|
show running-config
|
验证配置
|
Step 28
|
copy running-config startup-config
|
保存配置
|
|
|
命令
|
目的
|
Step 1
|
configure terminal
|
进入 Switch
1配置状态
|
Step 2
|
interface fastethernet 0/1 |
进入F0/1
|
Step 3
|
switchport mode trunk
|
配置Trunk,只能是dot1q模式
|
Step 4
|
exit
|
退回
|
Step 5
|
|
在F0/2口上重复2-4步骤
|
Step 6
|
end
|
退出
|
Step 7
|
show running-config
|
验证配置
|
Step 8
|
show vlan
|
验证switch1已经学到Vlan
|
Step 9
|
configure terminal
|
进入配置状态
|
Step 10
|
interface fastethernet 0/1
|
进入F0/1
|
Step 11
|
spanning-tree vlan 2 cost 30
|
设置Vlan2生成树路径值为30
|
Step 12
|
spanning-tree vlan 3 cost 30
|
设置Vlan3生成树路径值为30
|
Step 13
|
spanning-tree vlan 4 cost 30
|
设置Vlan4生成树路径值为30
|
Step 14
|
end
|
退出
|
Step 15
|
|
在switch1的F0/2上重复9-11步骤设置VLAN8,9,10生成树路径值为30
|
Step 16
|
exit
|
退出
|
Step 17
|
show running-config
|
验证配置
|
Step 18
|
copy running-config startup-config
|
保存配置
|
ZL-10th -Floor-1中的MAC地址为:000a.f404.ad80
ZL-10th -Floor-2中的MAC地址为:000a.f404.a500
ZL-10th -Floor-3中的MAC地址为:000a.f404.ab80
cluster commander-address 000a.f404.ad80 member 1 name ZL-10th-Floor
cluster commander-address 000a.f404.ad80 member 2 name ZL-10th-Floor
cluster commander-address 000a.f404.ad80 member 3 name ZL-10th-Floor