M-LAG 实验

### 实验拓扑

![图1-1][1]

### 实验需求

1. asw03到asw01和asw02使用M-LAG技术链路聚合
2. 要求当asw01或asw02链接asw03链路任意一条出现故障但还可确保业务能正常转发

---

### 实验解法

*步骤 1：在 asw01和asw02上配置 Keepalive 链路到asw02使三层技配置ip能互通，然后打上Text使查询时方便辨别*

```
[asw01]interface Ten-GigabitEthernet 1/0/49
[asw01-Ten-GigabitEthernet1/0/49]port link-mode route 
[asw01-Ten-GigabitEthernet1/0/49] description Keepalive
[asw01-Ten-GigabitEthernet1/0/49] ip address 1.1.1.1 30

[aswo2]interface Ten-GigabitEthernet 1/0/49
[aswo2-Ten-GigabitEthernet1/0/49]port link-mode route 
[aswo2-Ten-GigabitEthernet1/0/49]description Keepalive
[aswo2-Ten-GigabitEthernet1/0/49] ip address 1.1.1.2 30
```

*步骤 2：在 asw01和asw02 上创建 M-LAG系统Mac(这个Mac地址正常建议配置自己真实的桥mac地址，这个地址需要两端都一样)、系统编号和配置Keepalive源目IP[正常需在配一条系统优先级但我看默认32768都一样所以懒没配（这个优先级和IRF不同需要一致）] ，*

```
[asw01]m-lag system-mac 1-1-1
[asw01]m-lag system-number 1
[asw01]m-lag keepalive ip destination 1.1.1.2

[aswo2]m-lag system-mac 1-1-1
[aswo2]m-lag system-number 2
[aswo2]m-lag keepalive ip destination 1.1.1.1
```

*步骤 3：配置Peer-link链路的链路聚合，然后打上Text便于查询时方便辨别*

```
[asw01]interface Bridge-Aggregation  10
[asw01-Bridge-Aggregation10]description Peer-link
[asw01-Bridge-Aggregation10]link-aggregation mode dynamic  
[asw01]interface range FortyGigE  1/0/53 FortyGigE 1/0/54
[asw01-if-range]port link-aggregation group  10

[aswo2]interface Bridge-Aggregation 10
[aswo2-Bridge-Aggregation10]description Peer-link
[aswo2-Bridge-Aggregation10]link-aggregation mode  dynamic 
[aswo2]interface range FortyGigE 1/0/53 FortyGigE 1/0/54
[aswo2-if-range]port link-aggregation group  10
```

*步骤 4：将asw01 和 asw02 的 聚合口配置为Peer-link接口*

```
[asw01]interface Bridge-Aggregation  10
[asw01-Bridge-Aggregation10]port m-lag Peer-link 1

[aswo2]interface Bridge-Aggregation  10
[aswo2-Bridge-Aggregation10]port m-lag Peer-link 1
```

*步骤 5：将 asw01和asw02 链接其他口的链路配置为动态聚合和加入到分布式M-LAG聚合口中*

```
[asw01]interface Bridge-Aggregation  1
[asw01-Bridge-Aggregation1]link-aggregation mode  dynamic 
[asw01-Bridge-Aggregation1]port m-lag group  1
[asw01]interface Ten-GigabitEthernet 1/0/50
[asw01-Ten-GigabitEthernet1/0/50]port link-aggregation group 1

[aswo2]interface Bridge-Aggregation  1
[aswo2-Bridge-Aggregation1]link-aggregation mode dynamic 
[aswo2-Bridge-Aggregation1]port m-lag group 1
[aswo2]interface Ten-GigabitEthernet 1/0/51
[aswo2-Ten-GigabitEthernet1/0/51]port link-aggregation group  1
```

*步骤 6：将 asw03链接asw02和asw01设备的接口加入到动态聚合组中*

```
[asw03]interface Bridge-Aggregation  1
[asw03-Bridge-Aggregation1]link-aggregation mode dynamic 
[asw03]interface range Ten-GigabitEthernet 1/0/50 Ten-GigabitEthernet 1/0/51
[asw03-if-range]port link-aggregation group  1
```

*效果测试：将asw01和asw02分别创建个管理地址然后在asw03外带个设备ping asw01和asw02当关闭 asw01 的 XGE_1/0/50 口时外带设备仍然都能互通即完成实验**

*实验现象：查询Keepalive时UP、查询system、查询asw03聚合*

```
#查询Keepalive
[asw01]show m-lag keepalive 
Neighbor keepalive link status (cause): Up
Neighbor is alive for: 1291 s 313 ms
Keepalive packet transmission status:
  Sent: Successful
  Received: Successful
Last received keepalive packet information:
  Source IP address: 1.1.1.2
  Time: 2022/09/02 15:52:57
  Action: Accept

M-LAG keepalive parameters:
Destination IP address: 1.1.1.2
Source IP address: N/A
Keepalive UDP port : 6400
Keepalive VPN name : N/A
Keepalive interval : 1000 ms
Keepalive timeout  : 5 sec
Keepalive hold time: 3 sec
#查询system
[asw01]show m-lag system 
                     System information
Local system number: 1                      Peer system number: 2
Local system MAC: 0001-0001-0001            Peer system MAC: 0001-0001-0001
Local system priority: 32768                Peer system priority: 32768
Local bridge MAC: 0ce1-50f6-0100            Peer bridge MAC: 0ce1-53ab-0200
Local effective role: Primary               Peer effective role: Secondary
Health level: 0
Standalone mode on split: Disabled
In standalone mode: No

System timer information
Timer                      State       Value (s)    Remaining time (s)
Auto recovery              Disabled    -            -
Restore delay              Disabled    30           -
Consistency-check delay    Disabled    15           -
Standalone delay           Disabled    -            -
Role to None delay         Disabled    60           -
#查询asw03聚合
[asw03]show link-aggregation summary 
Aggregation Interface Type: 
BAGG -- Bridge-Aggregation, BLAGG -- Blade-Aggregation, RAGG -- Route-Aggregation, SCH-B -- Schannel-Bundle 
Aggregation Mode: S -- Static, D -- Dynamic 
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Actor System ID: 0x8000, 2ae3-41bf-0300

AGG        AGG   Partner ID              Selected  Unselected  Individual  Share
Interface  Mode                          Ports     Ports       Ports       Type 
--------------------------------------------------------------------------------
BAGG1      D     0x8000, 0001-0001-0001  2         0           0           Shar
```

[1]: /img/drni_top.png

实验拓扑

图1-1

实验需求

asw03到asw01和asw02使用M-LAG技术链路聚合
要求当asw01或asw02链接asw03链路任意一条出现故障但还可确保业务能正常转发

实验解法

　　
步骤 1：在 asw01和asw02上配置 Keepalive 链路到asw02使三层技配置ip能互通，然后打上Text使查询时方便辨别

[asw01]interface Ten-GigabitEthernet 1/0/49
[asw01-Ten-GigabitEthernet1/0/49]port link-mode route 
[asw01-Ten-GigabitEthernet1/0/49] description Keepalive
[asw01-Ten-GigabitEthernet1/0/49] ip address 1.1.1.1 30

[aswo2]interface Ten-GigabitEthernet 1/0/49
[aswo2-Ten-GigabitEthernet1/0/49]port link-mode route 
[aswo2-Ten-GigabitEthernet1/0/49]description Keepalive
[aswo2-Ten-GigabitEthernet1/0/49] ip address 1.1.1.2 30

步骤 2：在 asw01和asw02 上创建 M-LAG系统Mac(这个Mac地址正常建议配置自己真实的桥mac地址，这个地址需要两端都一样)、系统编号和配置Keepalive源目IP[正常需在配一条系统优先级但我看默认32768都一样所以懒没配（这个优先级和IRF不同需要一致）] ，

[asw01]m-lag system-mac 1-1-1
[asw01]m-lag system-number 1
[asw01]m-lag keepalive ip destination 1.1.1.2

[aswo2]m-lag system-mac 1-1-1
[aswo2]m-lag system-number 2
[aswo2]m-lag keepalive ip destination 1.1.1.1

步骤 3：配置Peer-link链路的链路聚合，然后打上Text便于查询时方便辨别

[asw01]interface Bridge-Aggregation  10
[asw01-Bridge-Aggregation10]description Peer-link
[asw01-Bridge-Aggregation10]link-aggregation mode dynamic  
[asw01]interface range FortyGigE  1/0/53 FortyGigE 1/0/54
[asw01-if-range]port link-aggregation group  10

[aswo2]interface Bridge-Aggregation 10
[aswo2-Bridge-Aggregation10]description Peer-link
[aswo2-Bridge-Aggregation10]link-aggregation mode  dynamic 
[aswo2]interface range FortyGigE 1/0/53 FortyGigE 1/0/54
[aswo2-if-range]port link-aggregation group  10

步骤 4：将asw01 和 asw02 的聚合口配置为Peer-link接口

[asw01]interface Bridge-Aggregation  10
[asw01-Bridge-Aggregation10]port m-lag Peer-link 1

[aswo2]interface Bridge-Aggregation  10
[aswo2-Bridge-Aggregation10]port m-lag Peer-link 1

步骤 5：将 asw01和asw02 链接其他口的链路配置为动态聚合和加入到分布式M-LAG聚合口中

[asw01]interface Bridge-Aggregation  1
[asw01-Bridge-Aggregation1]link-aggregation mode  dynamic 
[asw01-Bridge-Aggregation1]port m-lag group  1
[asw01]interface Ten-GigabitEthernet 1/0/50
[asw01-Ten-GigabitEthernet1/0/50]port link-aggregation group 1

[aswo2]interface Bridge-Aggregation  1
[aswo2-Bridge-Aggregation1]link-aggregation mode dynamic 
[aswo2-Bridge-Aggregation1]port m-lag group 1
[aswo2]interface Ten-GigabitEthernet 1/0/51
[aswo2-Ten-GigabitEthernet1/0/51]port link-aggregation group  1

步骤 6：将 asw03链接asw02和asw01设备的接口加入到动态聚合组中

[asw03]interface Bridge-Aggregation  1
[asw03-Bridge-Aggregation1]link-aggregation mode dynamic 
[asw03]interface range Ten-GigabitEthernet 1/0/50 Ten-GigabitEthernet 1/0/51
[asw03-if-range]port link-aggregation group  1

效果测试：将asw01和asw02分别创建个管理地址然后在asw03外带个设备ping asw01和asw02当关闭 asw01 的 XGE_1/0/50 口时外带设备仍然都能互通即完成实验*

实验现象：查询Keepalive时UP、查询system、查询asw03聚合

#查询Keepalive
[asw01]show m-lag keepalive 
Neighbor keepalive link status (cause): Up
Neighbor is alive for: 1291 s 313 ms
Keepalive packet transmission status:
  Sent: Successful
  Received: Successful
Last received keepalive packet information:
  Source IP address: 1.1.1.2
  Time: 2022/09/02 15:52:57
  Action: Accept

M-LAG keepalive parameters:
Destination IP address: 1.1.1.2
Source IP address: N/A
Keepalive UDP port : 6400
Keepalive VPN name : N/A
Keepalive interval : 1000 ms
Keepalive timeout  : 5 sec
Keepalive hold time: 3 sec
#查询system
[asw01]show m-lag system 
                     System information
Local system number: 1                      Peer system number: 2
Local system MAC: 0001-0001-0001            Peer system MAC: 0001-0001-0001
Local system priority: 32768                Peer system priority: 32768
Local bridge MAC: 0ce1-50f6-0100            Peer bridge MAC: 0ce1-53ab-0200
Local effective role: Primary               Peer effective role: Secondary
Health level: 0
Standalone mode on split: Disabled
In standalone mode: No

                     System timer information
Timer                      State       Value (s)    Remaining time (s)
Auto recovery              Disabled    -            -
Restore delay              Disabled    30           -
Consistency-check delay    Disabled    15           -
Standalone delay           Disabled    -            -
Role to None delay         Disabled    60           -
#查询asw03聚合
[asw03]show link-aggregation summary 
Aggregation Interface Type: 
BAGG -- Bridge-Aggregation, BLAGG -- Blade-Aggregation, RAGG -- Route-Aggregation, SCH-B -- Schannel-Bundle 
Aggregation Mode: S -- Static, D -- Dynamic 
Loadsharing Type: Shar -- Loadsharing, NonS -- Non-Loadsharing
Actor System ID: 0x8000, 2ae3-41bf-0300

AGG        AGG   Partner ID              Selected  Unselected  Individual  Share
Interface  Mode                          Ports     Ports       Ports       Type 
--------------------------------------------------------------------------------
BAGG1      D     0x8000, 0001-0001-0001  2         0           0           Shar

最后修改：2025 年 09 月 12 日