目录

1.拓扑图

2.以太网交换机基础配置

3.配置手动模式的链路聚合

4.配置静态 LACP 模式的链路聚合

5.配置文件

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1.拓扑图

2.以太网交换机基础配置

华为交换机接口默认开启了自协商功能，需要手动配置S1与 S2上G0/0/9和G0/0/10接口的速率。

首先修改交换机的设备名称，然后查看S1上G0/0/9和G0/0/10接口的详细信息。

<Quidway>system-view
[Quidway]sysname S1
[S1]display interface GigabitEthernet 0/0/9

[S1]display interface GigabitEthernet 0/0/1

在修改接口的速率之前应先关闭接口的自协商功能，然后将S1上的G0/0/9 和G0/0/10接口的速率配置为100 Mbit/s。

[S1]interface GigabitEthernet 0/0/9
[S1-GigabitEthernet0/0/9]undo negotiation auto
[S1-GigabitEthernet0/0/9]speed 100
[S1-GigabitEthernet0/0/9]quit
[S1]interface GigabitEthernet 0/0/10
[S1-GigabitEthernet0/0/10]undo negotiation auto
[S1-GigabitEthernet0/0/10]speed 100

同样的方法将S2上的G0/0/9和G0/0/10接口的速率配置为100 Mbit/s。

<Quidway>system-view
[Quidway]sysname S2
[S2]interface GigabitEthernet 0/0/9
[S2-GigabitEthernet0/0/9]undo negotiation auto
[S2-GigabitEthernet0/0/9]speed 100
[S2-GigabitEthernet0/0/9]quit
[S2]interface GigabitEthernet 0/0/10
[S2-GigabitEthernet0/0/10]undo negotiation auto
[S2-GigabitEthernet0/0/10]speed 100

验证S1上的G0/0/9和G0/0/10接口的速率已配置成功。

[S1]display interface GigabitEthernet 0/0/9

显示：

GigabitEthernet0/0/9 current state : UP Line protocol current state : UP

···

Speed : 100, Loopback: NONE Duplex: FULL, Negotiation:DISABLE

[S1]display interface GigabitEthernet 0/0/10

显示：

GigabitEthernet0/0/10 current state : UP

Line protocol current state : UP

···

Speed : 100, Loopback: NONE Duplex: FULL, Negotiation: DISABLE

3.配置手动模式的链路聚合

在S1和S2上创建Eth-Trunk 1，然后将G0/0/9和G0/0/10接口加入 Eth-Trunk 1（注意：将接口加入Eth-Trunk前需确认成员接口下没有任何配置）。

[S1]interface Eth-Trunk 1
[S1-Eth-Trunk1]quit
[S1]interface GigabitEthernet 0/0/9
[S1-GigabitEthernet0/0/9]eth-trunk 1
[S1-GigabitEthernet0/0/9]quit
[S1]interface GigabitEthernet 0/0/10
[S1-GigabitEthernet0/0/10]eth-trunk 1
[S2]interface Eth-Trunk 1
[S2-Eth-Trunk1]quit
[S2]interface GigabitEthernet 0/0/9
[S2-GigabitEthernet0/0/9]eth-trunk 1
[S2-GigabitEthernet0/0/9]quit
[S2]interface GigabitEthernet 0/0/10
[S2-GigabitEthernet0/0/10]eth-trunk 1

验证Eth-Trunk的配置结果。

[S1]display eth-trunk 

显示：

Operate status: up

···

GigabitEthernet0/0/9 Up 1

GigabitEthernet0/0/10 Up 1

Operate status: up

···

PortName Status Weight

GigabitEthernet0/0/9 Up 1

GigabitEthernet0/0/10 Up

4.配置静态 LACP 模式的链路聚合

删除S1和S2上的G0/0/9和G0/0/10接口下的配置。

[S1]interface GigabitEthernet 0/0/9
[S1-GigabitEthernet0/0/9]undo eth-trunk
[S1-GigabitEthernet0/0/9]quit
[S1]interface GigabitEthernet 0/0/10
[S1-GigabitEthernet0/0/10]undo eth-trunk
[S2]interface GigabitEthernet 0/0/9
[S2-GigabitEthernet0/0/9]undo eth-trunk
[S2-GigabitEthernet0/0/9]quit
[S2]interface GigabitEthernet 0/0/10
[S2-GigabitEthernet0/0/10]undo eth-trunk

创建Eth-Trunk 1并配置该Eth-Trunk为静态LACP模式。然后将G0/0/9和 G0/0/10接口加入Eth-Trunk 1。

[S1]interface Eth-Trunk 1
[S1-Eth-Trunk1]mode lacp
[S1-Eth-Trunk1]quit
[S1]interface GigabitEthernet 0/0/9
[S1-GigabitEthernet0/0/9]eth-trunk 1
[S1-GigabitEthernet0/0/9]quit
[S1]interface GigabitEthernet 0/0/10
[S1-GigabitEthernet0/0/10]eth-trunk 1

[S2]interface Eth-Trunk 1
[S2-Eth-Trunk1]mode lacp
[S2-Eth-Trunk1]quit
[S2]interface GigabitEthernet 0/0/9
[S2-GigabitEthernet0/0/9]eth-trunk 1
[S2-GigabitEthernet0/0/9]quit
[S2]interface GigabitEthernet 0/0/10
[S2-GigabitEthernet0/0/10]eth-trunk 1

查看交换机上Eth-Trunk的信息，查看链路是否协商成功。

[S1]display eth-trunk

显示：

LAG ID: 1 WorkingMode: LACP

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

System Priority: 32768 System ID: d0d0-4ba6-aab0

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

Operate status: up Number Of Up Port

在S1上配置LACP的系统优先级为100，使其成为LACP主动端。

[S1]lacp priority 10

配置接口的优先级确定活动链路。

[S1]interface GigabitEthernet 0/0/9
[S1-GigabitEthernet0/0/9]lacp priority 100
[S1-GigabitEthernet0/0/9]quit
[S1]interface GigabitEthernet 0/0/10
[S1-GigabitEthernet0/0/10]lacp priority 100

验证Eth-Trunk的配置结果。

[S1]display eth-trunk 1

显示：
System Priority: 100 System ID: d0d0-4ba6-aab0

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

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

···

Operate status: up

5.配置文件

[S1]display current-configuration
#
!Software Version V200R008C00SPC500
sysname S1
#
lacp priority 100
#
interface Eth-Trunk1
mode lacp
#
interface GigabitEthernet0/0/9
eth-trunk 1
lacp priority 100
undo negotiation auto
speed 100
#
interface GigabitEthernet0/0/10
eth-trunk 1
lacp priority 100
undo negotiation auto
speed 100
#
return
[S2]display current-configuration
#
!Software Version V200R008C00SPC500
sysname S2
#
interface Eth-Trunk1
mode lacp
#
interface GigabitEthernet0/0/9
eth-trunk 1
undo negotiation auto
speed 100
#
interface GigabitEthernet0/0/10
eth-trunk 1
undo negotiation auto
speed 100
#
return