二层链路聚合配置

一、手工负载分担模式配置

(1)

LSW1:

sys

Enter system view, return user view with Ctrl+Z.

[Huawei]sysn LSW1

[LSW1]int eth-trunk 1   //创建编号为1的eth-trunk端口

[LSW1-Eth-Trunk1]mode ?

  lacp-static  Static working mode

  manual       Manual working mode

注意:eth-trunk工作模式分为手工负载分担模式和lacp模式两种

[LSW1-Eth-Trunk1]mode manual load-balance         //配置为手工分钟分担模式

[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3   //将物理端口G0/0/1,G0/0/2,G0/0/3加入eth-trunk 1 端口

[LSW1-Eth-Trunk1]dis eth-trunk 1   //查看eth-trunk端口信息

Eth-Trunk1's state information is:

WorkingMode: NORMAL         Hash arithmetic: According to SIP-XOR-DIP         

Least Active-linknumber: 1  Max Bandwidth-affected-linknumber: 8              

Operate status: up          Number Of Up Port In Trunk: 3                     

--------------------------------------------------------------------------------

PortName                      Status      Weight 

GigabitEthernet0/0/1          Up          1      

GigabitEthernet0/0/2          Up          1      

GigabitEthernet0/0/3          Up          1  

(2)LSW2也需要同样的配置

sys

Enter system view, return user view with Ctrl+Z.

[Huawei]sysn LSW2

[LSW2]int eth-trunk 1

[LSW2-Eth-Trunk1]mode manual load-balance 

[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3

Info: This operation may take a few seconds. Please wait for a moment...

[LSW2-Eth-Trunk1]dis eth-trunk 1

Eth-Trunk1's state information is:

WorkingMode: NORMAL         Hash arithmetic: According to SIP-XOR-DIP         

Least Active-linknumber: 1  Max Bandwidth-affected-linknumber: 8              

Operate status: up          Number Of Up Port In Trunk: 3                     

--------------------------------------------------------------------------------


PortName                      Status      Weight 

GigabitEthernet0/0/1          Up          1      

GigabitEthernet0/0/2          Up          1      

GigabitEthernet0/0/3          Up          1      


(3)

回显信息中WorkingMode: NORMAL ,表示eth-trunk1的工作模式为收工负载分担模式,eth-trunk1包含了3个成员端口G0/0/1,G0/0/2,G0/0/3,

此时,两台设备之间的三条物理链路聚合在一起,已绑定成为一条逻辑上的链路。


二、静态LACP模式配置

(1)删除LSW1和LSW2上的G0/0/1,G0/0/2和G0/0/3接口下的配置。

LSW1:

[LSW1]int g0/0/1

[LSW1-GigabitEthernet0/0/1]undo eth-trunk 

[LSW1-GigabitEthernet0/0/1]int g0/0/2

[LSW1-GigabitEthernet0/0/2]undo eth-trunk

[LSW1-GigabitEthernet0/0/2]int g0/0/3

[LSW1-GigabitEthernet0/0/3]undo eth-trunk 

[LSW1-GigabitEthernet0/0/3]q

[LSW1]


LSW2:

[LSW2]int g0/0/1

[LSW2-GigabitEthernet0/0/1]undo eth-trunk 

[LSW2-GigabitEthernet0/0/1]int g0/0/2

[LSW2-GigabitEthernet0/0/2]undo eth-trunk 

[LSW2-GigabitEthernet0/0/2]int g0/0/3

[LSW2-GigabitEthernet0/0/3]undo eth-trunk 

[LSW2-GigabitEthernet0/0/3]q

[LSW2]


(2)创建eth-trunk端口,配置为lacp模式,将g0/0/1,g0/0/2,g0/0/3加入eth-trunk端口

LSW1:

[LSW1]int Eth-Trunk 1

[LSW1-Eth-Trunk1]mode lacp

[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3

[LSW1-Eth-Trunk1]dis eth-trunk 1    //查看链路协商信息

Local:

LAG ID: 1                   WorkingMode: STATIC          //此处工作模式为lacp-static                     

Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         

System Priority: 32768      System ID: 4c1f-cce2-765e                         

Least Active-linknumber: 1  Max Active-linknumber: 8         //默认的最大活动端口数                 

Operate status: down        Number Of Up Port In Trunk: 0                     

--------------------------------------------------------------------------------

ActorPortName          Status   PortType PortPri PortNo PortKey PortState Weight

GigabitEthernet0/0/1   Unselect 1GE      32768   2      305     10100010  1     

GigabitEthernet0/0/2   Unselect 1GE      32768   3      305     10100010  1     

GigabitEthernet0/0/3   Unselect 1GE      32768   4      305     10100010  1     


Partner:

--------------------------------------------------------------------------------

ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortState

GigabitEthernet0/0/1   0        0000-0000-0000  0       0      0       10100011

GigabitEthernet0/0/2   0        0000-0000-0000  0       0      0       10100011

GigabitEthernet0/0/3   0        0000-0000-0000  0       0      0       10100011


LSW2:

[LSW2]interface Eth-Trunk 1

[LSW2-Eth-Trunk1]mode lacp

[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/1 to 0/0/3

[LSW2-Eth-Trunk1]dis eth-trunk 1         

Eth-Trunk1's state information is:

Local:

LAG ID: 1                   WorkingMode: STATIC                               

Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         

System Priority: 32768      System ID: 4c1f-cc59-12d7                         

Least Active-linknumber: 1  Max Active-linknumber: 8                          

Operate status: up          Number Of Up Port In Trunk: 3                     

--------------------------------------------------------------------------------

ActorPortName          Status   PortType PortPri PortNo PortKey PortState Weight

GigabitEthernet0/0/1   Selected 1GE      32768   2      305     10111100  1     

GigabitEthernet0/0/2   Selected 1GE      32768   3      305     10111100  1     

GigabitEthernet0/0/3   Selected 1GE      32768   4      305     10111100  1     


Partner:

--------------------------------------------------------------------------------

ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortState

GigabitEthernet0/0/1   32768    4c1f-cce2-765e  32768   2      305     10111100

GigabitEthernet0/0/2   32768    4c1f-cce2-765e  32768   3      305     10111100

GigabitEthernet0/0/3   32768    4c1f-cce2-765e  32768   4      305     10111100

(3)修改最大活动端口数为2 ,使g0/0/1和g0/0/2处于select状态,g0/0/3处于unselect状态。

LSW1:

[LSW1]interface Eth-Trunk 1

[LSW1-Eth-Trunk1]max active-linknumber 2   //设置最大活动端口数为2

LSW2:

[LSW2]interface Eth-Trunk 1

[LSW2-Eth-Trunk1]max active-linknumber 2


查看:

[LSW1]dis Eth-Trunk 1

Eth-Trunk1's state information is:

Local:

LAG ID: 1                   WorkingMode: STATIC                               

Preempt Delay: Disabled     Hash arithmetic: According to SIP-XOR-DIP         

System Priority: 32768      System ID: 4c1f-cce2-765e                         

Least Active-linknumber: 1  Max Active-linknumber: 2                          

Operate status: up          Number Of Up Port In Trunk: 2                     

--------------------------------------------------------------------------------

ActorPortName          Status   PortType PortPri PortNo PortKey PortState Weight

GigabitEthernet0/0/1   Selected 1GE      32768   2      305     10111100  1     

GigabitEthernet0/0/2   Selected 1GE      32768   3      305     10111100  1     

GigabitEthernet0/0/3   Unselect 1GE      32768   4      305     10100000  1     //此处g0/0/3链路已处于unselect状态


Partner:

--------------------------------------------------------------------------------

ActorPortName          SysPri   SystemID        PortPri PortNo PortKey PortState

GigabitEthernet0/0/1   32768    4c1f-cc59-12d7  32768   2      305     10111100

GigabitEthernet0/0/2   32768    4c1f-cc59-12d7  32768   3      305     10111100

GigabitEthernet0/0/3   32768    4c1f-cc59-12d7  32768   4      305     10100000


当g0/0/1或者g0/0/2的端口处于中断状态时,lacp将会自动协商,将g0/0/3转变为转发(select)状态,维持链路的正常,这就是lacp模式的作用


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三层链路聚合配置与二层链路聚合配置类似,假如在路由器上配置三层链路聚合,需要先创建Eth-Trunk接口,然

后在Eth-Trunk逻辑口上执行undo portswitch命令,把聚合链路从二层转为三层链路。执行undo portswitch命令后,可以为Eth-Trunk逻辑口

分配一个IP地址。