配置LACP模式鏈路聚合

時間 2020-09-20

標籤配置 lacp 模式鏈路聚合欄目設計模式简体版

原文原文鏈接

組網需求網絡

在兩臺Router設備上配置LACP模式鏈路聚合組，提升兩設備之間的帶寬與可靠性，具體要求以下：ide

兩條活動鏈路具備負載分擔的能力。ui

兩設備間的鏈路具備一條冗餘備份鏈路，當活動鏈路出現故障鏈路時，備份鏈路替代故障鏈路，保持數據傳輸的可靠性。orm

配置LACP模式鏈路聚合組網圖接口

配置思路get

採用以下的思路配置LACP模式鏈路聚合：it

1. 在Router設備上建立Eth-Trunk，配置Eth-Trunk爲LACP模式，實現鏈路聚合功能。io

2. 將成員接口加入Eth-Trunk。ast

3. 配置系統優先級，肯定主動端，按照主動端設備的接口選擇活動接口。form

4. 配置活動接口上限閾值，實現保證帶寬的狀況下提升網絡的可靠性。

5. 配置接口優先級，肯定活動鏈路接口，優先級高的接口將被選做活動接口。

操做步驟

建立編號爲1的Eth-Trunk，配置它的工做模式爲LACP模式

# 配置RouterA。

<Huawei> system-view

[Huawei] sysname RouterA

[RouterA] interface eth-trunk 1

[RouterA-Eth-Trunk1] mode lacp-static

[RouterA-Eth-Trunk1] quit

# 配置RouterB。

<Huawei> system-view

[Huawei] sysname RouterB

[RouterB] interface eth-trunk 1

[RouterB-Eth-Trunk1] mode lacp-static

[RouterB-Eth-Trunk1] quit

將成員接口加入Eth-Trunk

# 配置RouterA。

[RouterA] interface ethernet 2/0/1

[RouterA-Ethernet2/0/1] eth-trunk 1

[RouterA-Ethernet2/0/1] quit

[RouterA] interface ethernet 2/0/2

[RouterA-Ethernet2/0/2] eth-trunk 1

[RouterA-Ethernet2/0/2] quit

[RouterA] interface ethernet 2/0/3

[RouterA-Ethernet2/0/3] eth-trunk 1

[RouterA-Ethernet2/0/3] quit

# 配置RouterB。

[RouterB] interface ethernet 2/0/1

[RouterB-Ethernet2/0/1] eth-trunk 1

[RouterB-Ethernet2/0/1] quit

[RouterB] interface ethernet 2/0/2

[RouterB-Ethernet2/0/2] eth-trunk 1

[RouterB-Ethernet2/0/2] quit

[RouterB] interface ethernet 2/0/3

[RouterB-Ethernet2/0/3] eth-trunk 1

[RouterB-Ethernet2/0/3] quit

在RouterA上配置系統優先級爲100，使其成爲LACP主動端

[RouterA] lacp priority 100

在RouterA上配置活動接口上限閾值爲2

[RouterA] interface eth-trunk 1

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

[RouterA-Eth-Trunk1] quit

在RouterA上配置接口優先級肯定活動鏈路

[RouterA] interface ethernet 2/0/1

[RouterA-Ethernet2/0/1] lacp priority 100

[RouterA-Ethernet2/0/1] quit

[RouterA] interface ethernet 2/0/2

[RouterA-Ethernet2/0/2] lacp priority 100

[RouterA-Ethernet2/0/2] quit

驗證配置結果

# 查看各Router設備的Eth-Trunk信息，查看鏈路是否協商成功。

[RouterA] display eth-trunk 1
Eth-Trunk1's state information is:
Local:
LAG ID: 1 WorkingMode: STATIC
Preempt Delay: Disabled Hash arithmetic: According to SA-XOR-DA
System Priority: 100 System ID: 00e0-fca8-0417
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
Ethernet2/0/1 Selected 100M 100 6145 2865 11111100 1
Ethernet2/0/2 Selected 100M 100 6146 2865 11111100 1
Ethernet2/0/3 Unselect 100M 32768 6147 2865 11100000 1

Partner:
------------------------------------------------------------------------------
PartnerPortName SysPri SystemID PortPri PortNo PortKey PortState
Ethernet2/0/1 32768 00e0-fca6-7f85 32768 6145 2609 11111100
Ethernet2/0/2 32768 00e0-fca6-7f85 32768 6146 2609 11111100
Ethernet2/0/3 32768 00e0-fca6-7f85 32768 6147 2609 11110000

[RouterB] display eth-trunk 1
Eth-Trunk1's state information is:
Local:
LAG ID: 1 WorkingMode: STATIC
Preempt Delay: Disabled Hash arithmetic: According to SA-XOR-DA
System Priority: 32768 System ID: 00e0-fca6-7f85
Least Active-linknumber: 1 Max Active-linknumber: 8
Operate status: Up Number Of Up Port In Trunk: 2
------------------------------------------------------------------------------
ActorPortName Status PortType PortPri PortNo PortKey PortState Weight
Ethernet2/0/1 Selected 100M 32768 6145 2609 11111100 1
Ethernet2/0/2 Selected 100M 32768 6146 2609 11111100 1
Ethernet2/0/3 Unselect 100M 32768 6147 2609 11100000 1

Partner:
------------------------------------------------------------------------------
PartnerPortName SysPri SystemID PortPri PortNo PortKey PortState
Ethernet2/0/1 100 00e0-fca8-0417 100 6145 2865 11111100
Ethernet2/0/2 100 00e0-fca8-0417 100 6146 2865 11111100
Ethernet2/0/3 100 00e0-fca8-0417 32768 6147 2865 11110000

經過以上顯示信息能夠看到，RouterA的系統優先級爲100，高於RouterB的系統優先級。Eth-Trunk的成員接口中Ethernet 2/0/一、Ethernet 2/0/2成爲活動接口，處於「Selected」狀態，接口Ethernet 2/0/3處於「Unselect」狀態，同時實現M條鏈路的負載分擔和N條鏈路的冗餘備份功能。