Cisco交换机链路聚合

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实用标准文案

下面是局域网的核心交换机(三层交换)和二层交换之间的端口聚合的操作实例:

2950

Switch>en

Switch#conf t

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#int f0/1

Switch(config-if)#channel-group 1 mode on

%LINK-5-CHANGED: Interface Port-channel 1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel

1, changed state to upSwitch(config-if)#int f0/2

Switch(config-if)#channel-group 1 mode on

3560

Switch(config)#int port-channel 1

Switch(config-if)#exit

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实用标准文案

Switch(config)#ip routing(默认已经启用了路由功能)

Switch(config)#int port-channel 1

Switch(config-if)#no switchport

Switch(config-if)#ip add 1.1.1.1 255.0.0.0

Switch(config-if)#no shut

Switch(config-if)#exit

Switch(config)#int f0/1

Switch(config-if)#no switchport

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to upSwitch(config-if)#

Switch(config-if)#no ip add

Switch(config-if)#channel-group 1 mode ?

active Enable LACP unconditionally

auto Enable PAgP only if a PAgP device is det ected 精彩文档.

实用标准文案

desirable Enable PAgP unconditionally

on Enable Etherchannel only

passive Enable LACP only if a LACP device is detec

ted

Switch(config-if)#channel-group 1 mode on

%LINK-5-CHANGED: Interface Port-channel 1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel

1, changed state to up

Switch(config-if)#

Switch(config-if)#int f0/2

Switch(config-if)#no switchport

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up

Switch(config-if)#no ip add

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实用标准文案

Switch(config-if)#no ip address

Switch(config-if)#channel-group 1 mode on

Switch(config-if)#exit

Switch(config)#int f0/3

Switch(config-if)#no switchport

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#ip add 2.2.2.1 255.0.0.0

Switch(config-if)#no shut

端口聚合可使流量在多条物理链路上负载均衡,同时也起到了链路的备份作用。但是在某些设备里,应注意聚合链路两端接口的速率,工作模式,例如在快以中,可将各个端口设置为speed

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