1. 将SwitchA和SwitchB配置為根橋，配置相同的橋ID，保證M-LAG主備設備在二層網絡中處于根橋地位。
2. 分别在SwitchA和SwitchB上配置管理網口的IP地址，且保證能夠三層互通，用于M-LAG主備設備間心跳報文的傳輸。
3. 分别在SwitchA和SwitchB上配置M-LAG特性，實現服務器的雙歸接入。
4. 在SwitchC和SwitchD上創建VLANIF接口并配置IP地址，在VLANIF接口上創建VRRP備份組，作為M-LAG主備設備的網關。

1.switchA和switchB配置根橋和相同橋ID

switchA

<HUAWEI> system-view [~HUAWEI] sysname SwitchA [*HUAWEI] commit [~SwitchA] stp root primary [*SwitchA] stp bridge-address 39-39-39 [*SwitchA] interface eth-trunk 1 [*SwitchA-Eth-Trunk1] trunkport 10ge 1/0/5 [*SwitchA-Eth-Trunk1] trunkport 10ge 1/0/6 [*SwitchA-Eth-Trunk1] stp edged-port enable [*SwitchA-Eth-Trunk1] commit [~SwitchA-Eth-Trunk1] quit

switchB

<HUAWEI> system-view [~HUAWEI] sysname SwitchB [*HUAWEI] commit [~SwitchB] stp root primary [*SwitchB] stp bridge-address 39-39-39 [*SwitchB] interface eth-trunk 1 [*SwitchB-Eth-Trunk1] trunkport 10ge 1/0/5 [*SwitchB-Eth-Trunk1] trunkport 10ge 1/0/6 [*SwitchB-Eth-Trunk1] stp edged-port enable [*SwitchB-Eth-Trunk1] commit [~SwitchB-Eth-Trunk1] quit

2.分别配置SwitchA和SwitchB管理網口的IP,用于雙主檢測

[~SwitchA] interface meth 0/0/0 [~SwitchA-MEth0/0/0] ip address 10.1.1.1 24 [*SwitchA-MEth0/0/0] quit [*SwitchA] commit [~SwitchB] interface meth 0/0/0 [~SwitchB-MEth0/0/0] ip address 10.1.1.2 24 [*SwitchB-MEth0/0/0] quit [*SwitchB] commit

3.在SwitchA和SwitchB上分别創建DFS并綁定管理網口的IP地址

[~SwitchA] dfs-group 1 [*SwitchA-dfs-group-1] source ip 10.1.1.1 [*SwitchA-dfs-group-1] priority 150 [*SwitchA-dfs-group-1] quit [*SwitchA] commit [~SwitchB] dfs-group 1 [*SwitchB-dfs-group-1] source ip 10.1.1.2 [*SwitchB-dfs-group-1] priority 120 [*SwitchB-dfs-group-1] quit [*SwitchB] commit

4.配置SwitchA和SwitchB之間的Peer-link

[~SwitchA] interface eth-trunk 0 [*SwitchA-Eth-Trunk0] trunkport 10ge 1/0/3 [*SwitchA-Eth-Trunk0] trunkport 10ge 1/0/4 [*SwitchA-Eth-Trunk0] undo stp enable [*SwitchA-Eth-Trunk0] mode lacp-static [*SwitchA-Eth-Trunk0] peer-link 1 [*SwitchA-Eth-Trunk0] quit [*SwitchA] commit [~SwitchB] interface eth-trunk 0 [*SwitchB-Eth-Trunk0] trunkport 10ge 1/0/3 [*SwitchB-Eth-Trunk0] trunkport 10ge 1/0/4 [*SwitchB-Eth-Trunk0] undo stp enable [*SwitchB-Eth-Trunk0] mode lacp-static [*SwitchB-Eth-Trunk0] peer-link 1 [*SwitchB-Eth-Trunk0] quit [*SwitchB] commit

5.配置SwitchA和SwitchB前面配置好的連接服務器Eth-Trunk1接口加入VLAN 11并綁定DFS Group

[~SwitchA] vlan batch 11 [*SwitchA] interface eth-trunk 1 [*SwitchA-Eth-Trunk1] mode lacp-dynamic [*SwitchA-Eth-Trunk1] port link-type access [*SwitchA-Eth-Trunk1] port default vlan 11 [*SwitchA-Eth-Trunk1] dfs-group 1 m-lag 1 [*SwitchA-Eth-Trunk1] quit [*SwitchA] commit [~SwitchB] vlan batch 11 [*SwitchB] interface eth-trunk 1 [*SwitchB-Eth-Trunk1] mode lacp-dynamic [*SwitchB-Eth-Trunk1] port link-type access [*SwitchB-Eth-Trunk1] port default vlan 11 [*SwitchB-Eth-Trunk1] dfs-group 1 m-lag 1 [*SwitchB-Eth-Trunk1] quit [*SwitchB] commit

6.配置SwitchA和SwitchC之間為聚合鍊路以及SwitchB和SwitchD之間為聚合鍊路，并配置接口類型和通過的VLAN

[~SwitchA] interface eth-trunk 2 [*SwitchA-Eth-Trunk2] mode lacp-static [*SwitchA-Eth-Trunk2] port link-type trunk [*SwitchA-Eth-Trunk2] port trunk allow-pass vlan 11 [*SwitchA-Eth-Trunk2] trunkport 10ge 1/0/1 [*SwitchA-Eth-Trunk2] trunkport 10ge 1/0/2 [*SwitchA-Eth-Trunk2] undo stp enable [*SwitchA-Eth-Trunk2] quit [*SwitchA] commit [~SwitchB] interface eth-trunk 2 [*SwitchB-Eth-Trunk2] mode lacp-static [*SwitchB-Eth-Trunk2] port link-type trunk [*SwitchB-Eth-Trunk2] port trunk allow-pass vlan 11 [*SwitchB-Eth-Trunk2] trunkport 10ge 1/0/1 [*SwitchB-Eth-Trunk2] trunkport 10ge 1/0/2 [*SwitchB-Eth-Trunk2] undo stp enable [*SwitchB-Eth-Trunk2] quit [*SwitchB] commit <HUAWEI> system-view [~HUAWEI] sysname SwitchC [*HUAWEI] commit [~SwitchC] vlan batch 11 [*SwitchC] interface eth-trunk 2 [*SwitchC-Eth-Trunk2] mode lacp-static [*SwitchC-Eth-Trunk2] port link-type trunk [*SwitchC-Eth-Trunk2] port trunk allow-pass vlan 11 [*SwitchC-Eth-Trunk2] trunkport 10ge 1/0/1 [*SwitchC-Eth-Trunk2] trunkport 10ge 1/0/2 [*SwitchC-Eth-Trunk2] quit [*SwitchC] commit <HUAWEI> system-view [~HUAWEI] sysname SwitchD [*HUAWEI] commit [~SwitchD] vlan batch 11 [*SwitchD] interface eth-trunk 2 [*SwitchD-Eth-Trunk2] mode lacp-static [*SwitchD-Eth-Trunk2] port link-type trunk [*SwitchD-Eth-Trunk2] port trunk allow-pass vlan 11 [*SwitchD-Eth-Trunk2] trunkport 10ge 1/0/1 [*SwitchD-Eth-Trunk2] trunkport 10ge 1/0/2 [*SwitchD-Eth-Trunk2] quit [*SwitchD] commit

7.在SwitchC和SwitchD上創建VLANIF接口并配置IP地址，在VLANIF接口上創建VRRP備份組

[~SwitchC] interface vlanif 11 [*SwitchC-Vlanif11] ip address 10.2.1.1 24 [*SwitchC-Vlanif11] vrrp vrid 1 virtual-ip 10.2.1.111 [*SwitchC-Vlanif11] vrrp vrid 1 priority 120 [*SwitchC-Vlanif11] quit [*SwitchC] commit [~SwitchD] interface vlanif 11 [*SwitchD-Vlanif11] ip address 10.2.1.2 24 [*SwitchD-Vlanif11] vrrp vrid 1 virtual-ip 10.2.1.111 [*SwitchD-Vlanif11] quit [*SwitchD] commit

8.驗證配置結果

[~SwitchA] display dfs-group 1 m-lag * : Local node Heart beat state : OK Node 1 * Dfs-Group ID : 1 Priority : 150 Address : ip address 10.1.1.1 State : Master Causation : - System ID : 00e0-fc95-7c31 SysName : SwitchA Version : V200R020C00 Device Type : CE9860EI Node 2 Dfs-Group ID : 1 Priority : 120 Address : ip address 10.1.1.2 State : Backup Causation : - System ID : 00e0-fc95-7c11 SysName : SwitchB Version : V200R020C00 Device Type : CE9860EI

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