m-lag keepLive起不来

检查一下接口配置，在设备上debug mlag keepalive报文看一下

您好，参考案例吧

03-M-LAG配置-新华三集团-H3C

你把拓扑和配置贴出来。

2. 组网图

图1-14 M-LAG基本功能配置组网图

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3. 配置步骤

(1)     配置Device A

# 系统配置。

<DeviceA> system-view

[DeviceA] m-lag system-mac 1-1-1

[DeviceA] m-lag system-number 1

[DeviceA] m-lag system-priority 123

# 配置Keepalive报文的目的IP地址和源IP地址。

[DeviceA] m-lag keepalive ip destination 1.1.1.1 source 1.1.1.2

# 配置端口Ten-GigabitEthernet3/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。

[DeviceA] interface ten-gigabitethernet 3/0/5

[DeviceA-Ten-GigabitEthernet3/0/5] port link-mode route

[DeviceA-Ten-GigabitEthernet3/0/5] ip address 1.1.1.2 24

[DeviceA-Ten-GigabitEthernet3/0/5] quit

# 配置Keepalive链路接口为保留接口。

[DeviceA] m-lag mad exclude interface ten-gigabitethernet 3/0/5

# 创建二层聚合接口3，并配置该接口为动态聚合模式。

[DeviceA] interface bridge-aggregation 3

[DeviceA-Bridge-Aggregation3] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation3] quit

# 分别将端口Ten-GigabitEthernet3/0/1和Ten-GigabitEthernet3/0/2加入到聚合组3中。

[DeviceA] interface ten-gigabitethernet 3/0/1

[DeviceA-Ten-GigabitEthernet3/0/1] port link-aggregation group 3

[DeviceA-Ten-GigabitEthernet3/0/1] quit

[DeviceA] interface ten-gigabitethernet 3/0/2

[DeviceA-Ten-GigabitEthernet3/0/2] port link-aggregation group 3

[DeviceA-Ten-GigabitEthernet3/0/2] quit

# 将二层聚合接口3配置为peer-link接口。

[DeviceA] interface bridge-aggregation 3

[DeviceA-Bridge-Aggregation3] port m-lag peer-link 1

[DeviceA-Bridge-Aggregation3] undo mac-address static source-check enable

[DeviceA-Bridge-Aggregation3] quit

# 创建二层聚合接口4，并配置该接口为动态聚合模式。

[DeviceA] interface bridge-aggregation 4

[DeviceA-Bridge-Aggregation4] link-aggregation mode dynamic

[DeviceA-Bridge-Aggregation4] quit

# 分别将端口Ten-GigabitEthernet3/0/3和Ten-GigabitEthernet3/0/4加入到聚合组4中。

[DeviceA] interface ten-gigabitethernet 3/0/3

[DeviceA-Ten-GigabitEthernet3/0/3] port link-aggregation group 4

[DeviceA-Ten-GigabitEthernet3/0/3] quit

[DeviceA] interface ten-gigabitethernet 3/0/4

[DeviceA-Ten-GigabitEthernet3/0/4] port link-aggregation group 4

[DeviceA-Ten-GigabitEthernet3/0/4] quit

# 将二层聚合接口4加入M-LAG组4中。

[DeviceA] interface bridge-aggregation 4

[DeviceA-Bridge-Aggregation4] port m-lag group 4

[DeviceA-Bridge-Aggregation4] quit

(2)     配置Device B

# 系统配置。

<DeviceB> system-view

[DeviceB] m-lag system-mac 1-1-1

[DeviceB] m-lag system-number 2

[DeviceB] m-lag system-priority 123

# 配置Keepalive报文的目的IP地址和源IP地址。

[DeviceB] m-lag keepalive ip destination 1.1.1.2 source 1.1.1.1

# 配置端口Ten-GigabitEthernet3/0/5工作在三层模式，并配置IP地址为Keepalive报文的源IP地址。

[DeviceB] interface ten-gigabitethernet 3/0/5

[DeviceB-Ten-GigabitEthernet3/0/5] port link-mode route

[DeviceB-Ten-GigabitEthernet3/0/5] ip address 1.1.1.1 24

[DeviceB-Ten-GigabitEthernet3/0/5] quit

# 配置Keepalive链路接口为保留接口。

[DeviceB] m-lag mad exclude interface ten-gigabitethernet 3/0/5

# 创建二层聚合接口3，并配置该接口为动态聚合模式。

[DeviceB] interface bridge-aggregation 3

[DeviceB-Bridge-Aggregation3] link-aggregation mode dynamic

[DeviceB-Bridge-Aggregation3] quit

# 分别将端口Ten-GigabitEthernet3/0/1和Ten-GigabitEthernet3/0/2加入到聚合组3中。

[DeviceB] interface ten-gigabitethernet 3/0/1

[DeviceB-Ten-GigabitEthernet3/0/1] port link-aggregation group 3

[DeviceB-Ten-GigabitEthernet3/0/1] quit

[DeviceB] interface ten-gigabitethernet 3/0/2

[DeviceB-Ten-GigabitEthernet3/0/2] port link-aggregation group 3

[DeviceB-Ten-GigabitEthernet3/0/2] quit

# 将二层聚合接口3配置为peer-link接口。

[DeviceB] interface bridge-aggregation 3

[DeviceB-Bridge-Aggregation3] port m-lag peer-link 1

[DeviceB-Bridge-Aggregation3] undo mac-address static source-check enable

[DeviceB-Bridge-Aggregation3] quit

# 创建二层聚合接口4，并配置该接口为动态聚合模式。

[DeviceB] interface bridge-aggregation 4

[DeviceB-Bridge-Aggregation4] link-aggregation mode dynamic

[DeviceB-Bridge-Aggregation4] quit

# 分别将端口Ten-GigabitEthernet3/0/3和Ten-GigabitEthernet3/0/4加入到聚合组4中。

[DeviceB] interface ten-gigabitethernet 3/0/3

[DeviceB-Ten-GigabitEthernet3/0/3] port link-aggregation group 4

[DeviceB-Ten-GigabitEthernet3/0/3] quit

[DeviceB] interface ten-gigabitethernet 3/0/4

[DeviceB-Ten-GigabitEthernet3/0/4] port link-aggregation group 4

[DeviceB-Ten-GigabitEthernet3/0/4] quit

# 将二层聚合接口4加入M-LAG组4中。

[DeviceB] interface bridge-aggregation 4

[DeviceB-Bridge-Aggregation4] port m-lag group 4

[DeviceB-Bridge-Aggregation4] quit

(3)     配置Device C

# 创建二层聚合接口4，并配置该接口为动态聚合模式。

<DeviceC> system-view

[DeviceC] interface bridge-aggregation 4

[DeviceC-Bridge-Aggregation4] link-aggregation mode dynamic

[DeviceC-Bridge-Aggregation4] quit

# 分别将端口Ten-GigabitEthernet3/0/1～Ten-GigabitEthernet3/0/4加入到聚合组4中。

[DeviceC] interface range ten-gigabitethernet 3/0/1 to ten-gigabitethernet 3/0/4

[DeviceC-if-range] port link-aggregation group 4

[DeviceC-if-range] quit

链路两端 IP 地址是否可以 ping 通?